Bridging a network connection

I am lucky enough to live next to my university and am in range of it's free wireless internet, unfortunately it requires a vpn connection so some of my other wifi devices can't connect (e.g. Wii, DS, PDA). I want to share the connection on my mac with the other devices. I have connected a wireless hub to the ethernet on my mac and can successfully connect to my mac from my other devices (i.e. i can see the personal web sharing page). However when I turn on the internet sharing (airport through ethernet) it does not work. Do people think this will be possible?
University VPN --> Airport --> Mac --> ethernet --> wireless hub --> wireless devices

I'm inferring that this "bridging" is (an indirect connection to my own network?
If you had two or more Apple AirPort routers both delivering the same wireless signal on your network, the routers would be "bridging".
If you do not have two or more Apple AirPort routers both delivering the same wireless signal, you would do well to simply erase the phrase "either through bridging" , as it would not apply to your network.
"To use your AirPrint printer with Wi-Fi, the printer must be connected to the same Wi-Fi network as your iOS device or Mac, either through bridging, or a direct connection to your Wi-Fi network."
Translation......the printer and all of your wireless devices need to be connected to the same wireless network.

Similar Messages

Network bridging two cable connections. Worth it?

I tend to be a bit (okay excessively) power hungry. My apartment complex provides a free shared wireless cable connection. I found it to be not reliable with uptime and was forced to get a dedicated cable line for myself.
Then I had this thought: when there are times when this wireless and free connection is up and running, would it be worth it to bridge the two connections on my desktop? One would be wired, the other wireless. I haven't yet purchased the wireless card since I'd like some input on this first. Both are cable connections at around 6 mbps (Comcast). I'm fairly savvy with networks however not so much on this concept of bridging in home computing. I use the Internet for large downloads, FTP, SSH, and web design, and I'm just power hungry , so I'm curious what the bandwidth and speed increases would be on this.
My desktop is very powerful and new, if that were to at all be a concern. Any thoughts, experiences, or input on this?
Last edited by jskier (2007-08-15 12:22:37)

Lone_Wolf wrote:
It sounds like you want to combine both physical nics into 1 virtual, this is called bonding.
Download the kernel sources and check Documentation/networking/bonding.txt .
I've done a bit of searching and it seems that downloading large files , ftp and such don't benefit from this as they only can make one connection.
Everyhting that uses multiple connections like p2p should benefit from it.
If you're going to use this, you should consider installing a downloadmanager like prozilla or aria / aria2.
Hmm, me thinks I'll play around with it, thanks!

Bridging network connections - access connection problem

Hi there,
I need to sum up my network connections (wlan, umts, e1000, loopback) to one connetion using a bridge. Unfortunatelly there seems to be a problem with the lenovo sw. After a few minutes connection time, wlan just stops working. I guess it has something to do with the automatic switching of the access connection system if it detects another network. Is there somewhere in the settings an option to allow bridging?
Thank you for any hint.

This sounds like a similiar problem:
http://forums.lenovo.com/t5/T61-and-prior-T-series-ThinkPad/T43-Wireless-LAN-missing/td-p/83212

Bridged network connected to wrong eth

Hi all,
I have an Oracle VM server and Oracle VM Manager with network connectivity but am having trouble getting network connectivity for the guest virtual machines.
On my Oracle VM Server, I have networking going through eth0 - the VM server created a bonded interface bond0 that connects to the active eth0. When I created a virtual machine network in the Oracle VM Manager, I was only given the option of choosing ports eth1, eth3 and eth4 in the "Select Ports to include in your network" so I picked eth1. This resulted in created a bridged network that uses port eth1. The problem is that I currently do not have internet connectivity on port eth1.
The question I have is:
1) Do I need to have at a minimum of 2 NICs on the Oracle VM Server? One for the server management and the other for virtual machines?
2) Why does eth0 not show up as an option when selecting ports for the VM network?
Appreciate any insight on this!!!
Thanks,
Nick

Hi,
To design your network architecture, dont forget to take care about:
- Fault tolerance
- Performance
- Security/Isolation
With Oracle VM Manager you can work with a minimum 1 NIC (all networks on the same interface) but this's not secure.
- if you have two NICs, you can create a network (Virtual Machine) and the second NIC to the other Network (more secure). and if you have a VLAN switch you can add the second NIC to the bond0, and create 5 logical networks (more secure & fault tolerance).
I hope this can help you
Best Regards

VPN and Internet Connection Sharing? (bridging remote networks)

I'd like to try an experiment and some advice from this list will be useful.
+Summary: Can a Mac with two interfaces activate VPN and Internet sharing simultaneously to bridge two remote networks?+
I've created a PPTP VPN server on our XServe at work and opened the appropriate ports on our firewall. This and a second location are linked with standard (but fast) ADSL broadband. I can log in from both Mac and Windows VPN clients at an external location and indeed the experience is just like being at work- printers, file servers and other resources (eg networked Filemaker databases) are all visible. Yay.
Question: Is it possible to extend this concept further by logging onto our VPN with once interface (eg Airport) +and then+ enabling Internet Sharing through the second interface (eg Ethernet)? Will this allow a small network connected through the second interface to all behave as though they are on the work network, with transparent access to fileservers, printers and so on, without each bothering individually with VPNs and so on? I suspect there are physical boxes that will do this, but it would be wonderful to know if I can get a Mac with two NICs to do the same job, acting as a router between the two networks. Are there any limitations to this? I am happy to tweak under the hood if need be. I just need to know if this is possible, even in theory, and what the limitations might be.
Thanks.

Hey Nathan...
My VPN is down at the moment, but I think your going to have to manually configure all of the "clients" who are sharing the VPN to an IP range that your office uses. When you connect to your VPN, check your network prefs, and you'll see the IP addresses assigned to your VPN are similar to your network at the office. So, in a way, your sharing computer has 2 IP addresses... one from your modem or router at home, and one from the VPN server at the office. It's this 2nd IP address that allows you to appear to be on the network at the office.
So, if you can find a way to set up your shared clients the same way.... it might work. It will also be VERY helpful if your IP range at home is different from the IP range at the office....192.168... for one...and 10.0.0 for the other. (Whether traffic will pass thru your "sharing server" is a different matter altogether.)
Now, and I'm really guessing here.. if this works at all... you may be only able to access stuff from the office on your "shared clients" (ie no internet).... the way around that is to set up your VPN to allow VPN clients to pull stuff from the internet from the office thu the VPN... and for the life of me don't remember how that is done. But it will most likely be a bit slow.
I'd start with the basics... setup one client with a manual IP address/router/dns servers, and try to ping a computer at the office. If this works... at least part of your problem is solved.
With all that said... it may not work at all. Good Luck!

Problem with Virtual PC and Network Connection - VPC gets disconnected

Hi,
I've been having a few problems with a virtual computer and its network connection. I've set up a few computers the same way over the years and they all work fine except this one. We use the Virtual PC and XP mode to access our data from an older
program. The databases are on a server, which are accessed as a mapped drive. Every once in a while (with no particular pattern, sometimes it doesn't happen all day, sometimes it happens every 5 mins), the VPC gets disconnected from the network,
my program returns a file read error and then everything is frozen. When I try to ipconfig/release and renew, it releases correctly then it won't renew. I need to shut down the VPC from the Win7 task manager and even so, it doesn't shut it down,
even when I try to kill the vpc process. The only way it'll come back up is if I restart the computer. The network connection on the Win7 computer doesn't do that.
Is there anything I can do to fix this ?
Thanks,
Melanie

Hi,
Does it become more stable now, actually, I'm afraid that this issue is not related with the drive letter or name. Since you're using bridge mode, the I would suggest you use NAT as a test, it is the default network configuration, which allows the VM
to leverage the external TCP/IP network connected to the host. This is very useful if you regularly move the host computer between different network configurations. NAT is the preferred networking option when there is a shortage of IP addresses, a need to
ensure the VM’s IP address is not targetable from an external network, or a need for connecting using WWAN.
Yolanda Zhu
TechNet Community Support

Compatibility w Network connect

I use Safari and Network Connect for my VPN connection for my work at NASA, but recently I cant get the application to launch properly....I suspect it has something to do with the recent Safari upgrade to 6.0.3 and/or a Java upgrade....can anyone help? how do I set up proper configuration or loading....(btw Network Connect works properly when I use firefox. ;-(

No crazy file names. Basic OS install, and drive names are single words with no symbols.
Update on testing: Even though I didn't want to, I did a fresh install of the OS and started loading my extras one by one to see where the problem started occurring.
I was able to connect after a fresh install, so it wasn't the Momentus 500 GB 7200 rpm drive, which was my first assumption, based on all the bad info online about that drive. Next I installed the iSCSI initiator (for SAN connection) and still was able to connect. Then I installed FibreJet SAN software (which includes HASP drivers for the dongle) and configured the network location in System Prefs to connect to the SAN. (Current configuration is LAN going in through built-in ethernet port, SAN going in through expresscard/34 ethernet adapter.) After installing FibreJet and plugging in the expresscard, couldn't connect to volumes.
So I'm wondering one of two things:
1. Is the expresscard having some kind of communication problem with the network? (The iSCSI bridge is separate from the LAN, but I noticed that I still have volume connectivity through that switch - could there be a conflict when trying to connect to volumes on individual computers?) I've been doing this successfully for 2 years now, but using USB ethernet adapters at 100Mb/s connection over the LAN. This week is the first time I started using the scpresscard ethernet adapters, so I'm doing some troubleshooting today.
First thing today I setup new network locations in Sys Prefs, and I was able to connect to one of the computers over the LAN. (I took the SAN connection out.) I'm making sure all OS updates are identical, and then I will add the HASP drivers without the iSCSI initiator and see if they are the cause. If not, I'll add back the initiator, but not the expresscard, and lastly, add the expresscard back into the equation. Those are the only elements that are different.
I'll report back with results.
Thanks for the response.

2.1.5 Guest Network Connectivity

Has anyone see guest network connectivity issues on Oracle VM 2.1.5 Server? This seems to happen occasionally on many of our boxes - seems to be guests that have been up over 100 days. We found two fixes to restore network connectivity -
1. Reboot guest
2. Save/Restore Guest.
There is no traffic on the guest however the HV seems fine. Other guests on the same hypervisor seem fine as well. Just completely random. Guest OS doesn't seem to be the problem since we've had different OS with the same problem. It seems like the bridge just fails. We are using bonding and vlans on the HV. No error messages in any logs. The Link Detected: yes is still on in the failed guest - no packets can pass and on the physical switch port the MAC for the Guest is gone.
Has anyone else seen this? We haven't seen this in 2.2 yet but we haven't had too many guests up on 2.2 for that long. We've had two guests this week drop off the network.
I've opened a SR on metalink as well.
-Scoleri

First I want to make sure I understand what you are trying to do. You have, for lack of a better word, "trusted" clients on the AEBS on the main wireless network and "untrusted" clients on the AEBS's Guest network.
You want to be able to access the untrusted clients, from the trusted. And you checked the "Allow guests network clients to communicate....." box.
If you check out the help in the AU for that box it says:
"If you want to allow guest computers to communicate with each other, make sure sharing services are set up on the client computers. Select the wireless device in AirPort Utility and click Manual Setup. Click AirPort in the toolbar, click Guest Network, and then select “Allow guest network clients to communicate with each other.”
I would take this check box to mean that intercommunication between clients connecting on the guest network is possible. Not to make a "firewall" like rule saying clients on the trusted side can talk to clients on the untrusted side.
I wonder if the previous version of firmware had the bug (that allowed the communication) was correct in 7.5.2?
Maybe a call to AppleCare is warranted to find out?
Also, if you feel this is an actual bug, then you can also sign up on ADC (its free) and file a bug.

Network connecting setting in VM

The below issue could be duplicated in VM. But this issue is about signed name. If there are any suggestion or solution, this is very very appreciated.
There is a windows service exe (vc6 code) which will call some COM interface (.net code, signed name dll file).
Scenario 1:
1) The network connection of the virtual machine settings is Host-only.
2) The COM dll is signed name file.
It costs lots of time (more than 1 minitues) to create com instance.
Scenario 2:
1) The network connection of the virtual machine settings is Host-only.
2) The COM dll is un-signed name file.
It costs less than 1 second to create com instance.
Scenario 3:
1) The network connection of the virtual machine settings is Bridged. And the host computer had never had access to Internet.
2) The COM dll is signed name or un-signed name.
It costs less than 1 second to create com instance.
What's the relationship between network connection setting and signed name?
Thanks Very Much!
Scott

Any words?
Thanks
Scott

Server Network Connection Loss with fast recovery.

Ok, so we are having an issue where our server is randomly losing network connection momentarily, but for long enough to boot everyone out. VMware seems to be related but we are having trouble understanding if VMware is just a symptom of something else happening or if VMware is indeed casuing this.
I was wondering if you guys might be able to offer your thoughts. At first we thought it was the MIC, and because we had a mirrored server we were able to swap to that and I think rule out that it's the NIC.
Thanks
Please see log below. This is just the first 100 lines.
19/08/13 12:07:56.084 PM vmnet-bridge[602]: Dynamic store changed
19/08/13 12:07:56.084 PM vmnet-bridge[602]: Adapter: en0, Inactive
19/08/13 12:07:56.000 PM kernel[0]: Intel82574L::setLinkStatus - not active 1face000, 0
19/08/13 12:07:56.000 PM kernel[0]: vmnet: bridge-en0: interface en is going DOWN
19/08/13 12:07:56.000 PM kernel[0]: vmnet: bridge-en0: interface en is going DOWN
19/08/13 12:07:56.000 PM kernel[0]: vmnet: VMNetDisconnect called for port 0xffffff80365aa000
19/08/13 12:07:56.000 PM kernel[0]: en0: promiscuous mode disable succeeded
19/08/13 12:07:56.000 PM kernel[0]: vmnet: bridge-en0: disabled promiscuous mode
19/08/13 12:07:56.000 PM kernel[0]: vmnet: bridge-en0: filter detached
19/08/13 12:07:56.000 PM kernel[0]: vmnet: bridge-en0: down
19/08/13 12:07:56.000 PM kernel[0]: vmnet: bridge-en0: detached
19/08/13 12:07:57.085 PM pppd[73135]: l2tp_wait_input: Address deleted. previous interface setting (name: en0, address: 192.168.29.4), deleted interface setting (name: en0, family: Ether, address: 192.168.29.4, subnet: 255.255.255.0, destination: 192.168.29.255).
19/08/13 12:07:57.134 PM configd[20]: network changed: v4(ppp0:192.168.29.4, en0-:192.168.29.4) DNS- Proxy- SMB-
19/08/13 12:07:57.135 PM vmnet-bridge[602]: Dynamic store changed
19/08/13 12:07:57.136 PM vmnet-bridge[602]: Could not retrieve media for interface ppp0: Operation not supported on socket.
19/08/13 12:07:57.000 PM kernel[0]: vmnet: VMNetDisconnect called for port 0xffffff80361d7400
19/08/13 12:07:57.000 PM kernel[0]: vmnet: bridge-en0: filter detached
19/08/13 12:07:57.000 PM kernel[0]: vmnet: bridge-en0: down
19/08/13 12:07:57.000 PM kernel[0]: vmnet: bridge-en0: detached
19/08/13 12:07:57.000 PM kernel[0]: vmnet: Freeing hub at 0xffffff8035474000.
19/08/13 12:07:57.139 PM pppd[73135]: starting wait-interface timer for l2tp: 20 secs
19/08/13 12:07:57.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:57.000 PM kernel[0]: vmnet: VMNetSetopt: Set link state DOWN
19/08/13 12:07:57.000 PM kernel[0]: vmnet: VMNetSetopt: Set link state UP
19/08/13 12:07:57.000 PM kernel[0]: vmnet: VMNetSetopt: Set link state DOWN
19/08/13 12:07:57.000 PM kernel[0]: vmnet: VMNetSetopt: Set link state UP
19/08/13 12:07:57.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:58.000 PM kernel[0]: 22
19/08/13 12:07:58.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:58.085 PM vmnet-bridge[602]: Dynamic store changed
19/08/13 12:07:58.000 PM kernel[0]: Ethernet [Intel82574L]: Link up on en0, 1-Gigabit, Full-duplex, Symmetric flow-control, Debug [796d,af48,0de1,0200,cde1,38ff]
19/08/13 12:07:58.000 PM kernel[0]: Intel82574L::setLinkStatus - active 1face000, b
19/08/13 12:07:58.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:58.000 PM kernel[0]: vmnet: VNetUserIf_Create: created userIf at 0xffffff8031dad400.
19/08/13 12:07:58.000 PM kernel[0]: vmnet: VMNetConnect: returning port 0xffffff8031dad400
19/08/13 12:07:58.000 PM kernel[0]: vmnet: VMNET_SO_BINDTOHUB: port: paddr 00:50:56:e0:f7:b6
19/08/13 12:07:58.000 PM kernel[0]: vmnet: Hub 2
19/08/13 12:07:58.000 PM kernel[0]: vmnet:           Port 0
19/08/13 12:07:58.085 PM vmnet-bridge[602]: Started bridge for 2, en0
19/08/13 12:07:58.000 PM kernel[0]: vmnet:           Port 1
19/08/13 12:07:58.000 PM kernel[0]: vmnet:           Port 2
19/08/13 12:07:58.000 PM kernel[0]: vmnet:           Port 5
19/08/13 12:07:58.000 PM kernel[0]: vmnet:           Port 6
19/08/13 12:07:58.000 PM kernel[0]: vmnet: bridge-en0: media 20 dev 0xffffff8033a41428 family 2
19/08/13 12:07:58.000 PM kernel[0]: ip_output: can't update route after IPsec processing
19/08/13 12:07:58.000 PM kernel[0]: vmnet: bridge-en0: up
19/08/13 12:07:58.000 PM kernel[0]: vmnet: bridge-en0: attached
19/08/13 12:07:58.000 PM kernel[0]: en0: promiscuous mode enable succeeded
19/08/13 12:07:58.000 PM kernel[0]: vmnet: bridge-en0: enabled promiscuous mode
19/08/13 12:07:58.000 PM kernel[0]: vmnet: VNetUserIfFree: freeing userIf at 0xffffff8031dad400.
19/08/13 12:07:58.395 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(8) failed to send packet on InterfaceID 0000000000000009 vmnet1/4 to 224.0.0.251:5353 skt 8 error -1 errno 55 (No buffer space available) 6348501084 MessageCount is 100
19/08/13 12:07:58.395 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(8) failed to send packet on InterfaceID 0000000000000009 vmnet1/4 to 224.0.0.251:5353 skt 8 error -1 errno 55 (No buffer space available) 6348501084 MessageCount is 200
19/08/13 12:07:58.396 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(8) failed to send packet on InterfaceID 000000000000000A vmnet8/4 to 224.0.0.251:5353 skt 8 error -1 errno 55 (No buffer space available) 6348501084 MessageCount is 300
19/08/13 12:07:58.396 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(8) failed to send packet on InterfaceID 000000000000000A vmnet8/4 to 224.0.0.251:5353 skt 8 error -1 errno 55 (No buffer space available) 6348501084 MessageCount is 400
19/08/13 12:07:58.396 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(9) failed to send packet on InterfaceID 0000000000000001   lo0/6 to FF02:0000:0000:0000:0000:0000:0000:00FB:5353 skt 9 error -1 errno 55 (No buffer space available) 6348501084 MessageCount is 500
19/08/13 12:07:58.396 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(9) failed to send packet on InterfaceID 0000000000000001   lo0/6 to FF02:0000:0000:0000:0000:0000:0000:00FB:5353 skt 9 error -1 errno 55 (No buffer space available) 6348501084 MessageCount is 600
19/08/13 12:07:58.000 PM kernel[0]: code 22
19/08/13 12:07:58.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:58.646 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(8) failed to send packet on InterfaceID 000000000000000A vmnet8/4 to 224.0.0.251:5353 skt 8 error -1 errno 55 (No buffer space available) 8028798216342761815 MessageCount is 700
19/08/13 12:07:58.897 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(8) failed to send packet on InterfaceID 0000000000000009 vmnet1/4 to 224.0.0.251:5353 skt 8 error -1 errno 55 (No buffer space available) 10643468882 MessageCount is 800
19/08/13 12:07:59.000 PM kernel[0]: 22
19/08/13 12:07:59.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:59.142 PM mDNSResponderHelper[76029]: do_mDNSInterfaceAdvtIoctl: ioctl call SIOCGIFINFO_IN6 failed - error (22) Invalid argument
19/08/13 12:07:59.142 PM mDNSResponderHelper[76029]: do_mDNSInterfaceAdvtIoctl: ioctl call SIOCGIFINFO_IN6 failed - error (22) Invalid argument
19/08/13 12:07:59.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:59.479 PM mDNSResponder[100]: mDNSPlatformSendUDP: sendto(8) failed to send packet on InterfaceID 0000000000000009 vmnet1/4 to 224.0.0.251:5353 skt 8 error -1 errno 55 (No buffer space available) 10643469463 MessageCount is 900
19/08/13 12:07:59.000 PM kernel[0]: 22
19/08/13 12:07:59.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:59.690 PM pppd[73135]: l2tp_wait_input: Address added. previous interface setting (name: en0, address: 192.168.29.4), current interface setting (name: en0, family: Ether, address: 192.168.29.4, subnet: 255.255.255.0, destination: 192.168.29.255).
19/08/13 12:07:59.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:07:59.000 PM kernel[0]: ip_output: can't update route after IPsec processing
19/08/13 12:07:59.705 PM racoon[265]: IKE Packet: transmit success. (Information message).
19/08/13 12:07:59.705 PM racoon[265]: IKEv1 Information-Notice: transmit success. (Delete IPSEC-SA).
19/08/13 12:07:59.705 PM racoon[265]: IKE Packet: transmit success. (Information message).
19/08/13 12:07:59.706 PM racoon[265]: IKEv1 Information-Notice: transmit success. (Delete ISAKMP-SA).
19/08/13 12:07:59.706 PM racoon[265]: Connecting.
19/08/13 12:07:59.706 PM racoon[265]: IPSec Phase1 started (Initiated by me).
19/08/13 12:07:59.706 PM racoon[265]: IKE Packet: transmit success. (Initiator, Main-Mode message 1).
19/08/13 12:08:00.000 PM kernel[0]: ip4_output (ipsec): error code 22
19/08/13 12:08:00.000 PM kernel[0]: vmnet: VMNetSetopt: Set link state DOWN
19/08/13 12:08:00.000 PM kernel[0]: vmnet: VMNetSetopt: Set link state UP
19/08/13 12:08:02.114 PM racoon[265]: IKE Packet: transmit success. (Phase1 Retransmit).
19/08/13 12:08:02.252 PM digest-service[76044]: label: default
19/08/13 12:08:02.252 PM digest-service[76044]:           dbname: od:/Local/Default

If you're not current on your VMware software, patch that to current.
Please then consider asking the VMware folks directly. They'll be looking for details such as your version and the guest operating system. Also probably for the network configuration within the virtual machine; the details of the virtual network set-up.
In general, there's not a whole lot of VMware discussion traffic here in the OS X Server forum. There's also little or nothing on that stack that looks specific to OS X Server in that log. That is mostly VMware chatter, with some generic OS X networking for mDNS (Bonjour) traffic.
Put another way, this forum probably isn't the best spot to get an answer. The folks in a VMware forum will likely have a rather better idea of what those log messages really mean, and may well have seen this sequence before.

T520 problem with Wireless Network Connection Adaptors

I was in Windows 7 Device Manager's Network Connections trying to fix a minor WIFI problem by uninstalling the drivers and then scanning for hardware changes to reinstall them. I uninstalled a driver that the scan didn't pick up to reinstall, and I didn't write down its name. Now the WIFI does not work at all. I've updated the two drivers left in Network Adapters:
Intel 82579LM Gigabit Network Connection for my ethernet
Intel Centrino Ultimate-N 6300 AGN for my WIFI
Does anyone know the name of the wireless driver I uninstalled? Does the 520 require two wireless network adaptor drivers? Can't seem to find info on it anywhere!
What I've done:
I ran Intel's PROSet/Wireless WiFi Connection Utility diagnostic tools. The hardware test fails saying "Wireles Hardware is not boudn to transport driver". The Driver Test passed saying "Driver is loaded. Netwsw00 Version: 15.4.1.1. The Radio Test failed saying "Failure geting network radio status!". After that the Scant Test, Asociation Test, Authentificaiton Test, Siganl Test and Ping Test all failed.
Installed every 64 bit LAN wireless network adaptor driver I could find in the T520 section of Lenovo's site
Any assistance appreciated. I'm a bit of a noob.
Thanks
T520 4239 CTO
Windows 7 Home Premium 64 bit

Here is the list.
Try scan for new devices in Device manager otherwise you likely have to reinstall the package again.
T520 Model 4239 Intel(R) Core(TM) i7-2860QM CPU @ 2.50GHz
Intel Sandy Bridge & Nvidia NVS 4200M graphics Intel N 6300 Wi-Fi adapter
Windows 7 Home Prem - 64bit w/8GB DDR3
Attachments:
NA.jpg ‏29 KB

No network connection in Linux 3.0 (P5Q Deluxe)

After upgrading to Linux 3.0 I can't get any kind of network connection. I am using the on-board network adaptor on Asus P5Q Deluxe motherboard. There are two NICs using the skge and sky2 modules.
I have gone back to 2.6.39 until I can fix the problem.
In previous kernel versions these drivers could be a bit unreliable. Sometimes after boot they didn't work, but a reboot usually solved it. I tried rebooting many times but it didn't work on the 3.0 kernel.
Last edited by shaurz (2011-08-13 08:52:32)

OK, if I boot up and reconfigure the network adaptor on eth1, it works. When I reboot again configured on eth1 it doesn't work, but if I reconfigure it on eth0 it works again. Very strange.
The modules seem to always be loaded, that doesn't seem to be the problem.
Output of lspci -nnv:
00:00.0 Host bridge [0600]: Intel Corporation 4 Series Chipset DRAM Controller [8086:2e20] (rev 03)
Subsystem: ASUSTeK Computer Inc. Device [1043:82d3]
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel modules: intel-agp
00:01.0 PCI bridge [0604]: Intel Corporation 4 Series Chipset PCI Express Root Port [8086:2e21] (rev 03) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fe900000-fe9fffff
Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
Capabilities: [88] Subsystem: ASUSTeK Computer Inc. Device [1043:82d3]
Capabilities: [80] Power Management version 3
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [a0] Express Root Port (Slot+), MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [140] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1a.0 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4 [8086:3a37] (prog-if 00 [UHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 16
I/O ports at b800 [size=32]
Capabilities: [50] Vendor Specific Information: Len=06 <?>
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1a.1 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5 [8086:3a38] (prog-if 00 [UHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 21
I/O ports at b880 [size=32]
Capabilities: [50] Vendor Specific Information: Len=06 <?>
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1a.2 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6 [8086:3a39] (prog-if 00 [UHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at bc00 [size=32]
Capabilities: [50] Vendor Specific Information: Len=06 <?>
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1a.7 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2 [8086:3a3c] (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 18
Memory at fe8ffc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] Vendor Specific Information: Len=06 <?>
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:1b.0 Audio device [0403]: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller [8086:3a3e]
Subsystem: ASUSTeK Computer Inc. Device [1043:8311]
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at fe8f8000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [130] Root Complex Link
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge [0604]: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1 [8086:3a40] (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: f0600000-f09fffff
Prefetchable memory behind bridge: 00000000fde00000-00000000fdefffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.2 PCI bridge [0604]: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 3 [8086:3a44] (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 00001000-00001fff
Memory behind bridge: f0200000-f05fffff
Prefetchable memory behind bridge: 00000000fdd00000-00000000fddfffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.5 PCI bridge [0604]: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 6 [8086:3a4a] (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fea00000-feafffff
Prefetchable memory behind bridge: 00000000f0000000-00000000f01fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1 [8086:3a34] (prog-if 00 [UHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 23
I/O ports at b080 [size=32]
Capabilities: [50] Vendor Specific Information: Len=06 <?>
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.1 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2 [8086:3a35] (prog-if 00 [UHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at b400 [size=32]
Capabilities: [50] Vendor Specific Information: Len=06 <?>
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.2 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3 [8086:3a36] (prog-if 00 [UHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at b480 [size=32]
Capabilities: [50] Vendor Specific Information: Len=06 <?>
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.7 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1 [8086:3a3a] (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at fe8ff800 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] Vendor Specific Information: Len=06 <?>
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev 90) (prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: feb00000-febfffff
Prefetchable memory behind bridge: 00000000fdf00000-00000000fdffffff
Capabilities: [50] Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
00:1f.0 ISA bridge [0601]: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller [8086:3a16]
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel modules: iTCO_wdt
00:1f.2 SATA controller [0106]: Intel Corporation 82801JI (ICH10 Family) SATA AHCI Controller [8086:3a22] (prog-if 01 [AHCI 1.0])
Subsystem: ASUSTeK Computer Inc. P5Q Deluxe Motherboard [1043:82d4]
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 44
I/O ports at ac00 [size=8]
I/O ports at a880 [size=4]
I/O ports at a800 [size=8]
I/O ports at a480 [size=4]
I/O ports at a400 [size=32]
Memory at fe8fe800 (32-bit, non-prefetchable) [size=2K]
Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit-
Capabilities: [70] Power Management version 3
Capabilities: [a8] SATA HBA v1.0
Capabilities: [b0] Vendor Specific Information: Len=06 <?>
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 82801JI (ICH10 Family) SMBus Controller [8086:3a30]
Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
Flags: medium devsel, IRQ 18
Memory at fe8ff400 (64-bit, non-prefetchable) [size=256]
I/O ports at 0400 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c-i801
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Cayman PRO [AMD Radeon 6900 Series] [1002:6719] (prog-if 00 [VGA controller])
Subsystem: XFX Pine Group Inc. Device [1682:3122]
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at fe9c0000 (64-bit, non-prefetchable) [size=128K]
I/O ports at c000 [size=256]
Expansion ROM at fe9a0000 [disabled] [size=128K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities: [150] Advanced Error Reporting
Kernel driver in use: fglrx_pci
Kernel modules: fglrx, radeon
01:00.1 Audio device [0403]: ATI Technologies Inc Device [1002:aa80]
Subsystem: XFX Pine Group Inc. Device [1682:aa80]
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at fe9fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities: [150] Advanced Error Reporting
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
02:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller [11ab:4364] (rev 12)
Subsystem: ASUSTeK Computer Inc. Device [1043:81f8]
Flags: bus master, fast devsel, latency 0, IRQ 45
Memory at feafc000 (64-bit, non-prefetchable) [size=16K]
I/O ports at d800 [size=256]
Expansion ROM at feac0000 [disabled] [size=128K]
Capabilities: [48] Power Management version 3
Capabilities: [50] Vital Product Data
Capabilities: [5c] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [e0] Express Legacy Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Kernel driver in use: sky2
Kernel modules: sky2
03:00.0 Multimedia video controller [0400]: Device [1a0a:6200] (rev 01)
Subsystem: Avermedia Technologies Inc Device [1461:6201]
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at fddf8000 (64-bit, prefetchable) [size=32K]
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Power Management version 3
Capabilities: [80] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
05:00.0 Multimedia video controller [0400]: Brooktree Corporation Bt878 Video Capture [109e:036e] (rev 11)
Flags: bus master, medium devsel, latency 64, IRQ 16
Memory at fdffe000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
Kernel driver in use: bttv
Kernel modules: bttv
05:00.1 Multimedia controller [0480]: Brooktree Corporation Bt878 Audio Capture [109e:0878] (rev 11)
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at fdfff000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
05:02.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller [11ab:4320] (rev 14)
Subsystem: ASUSTeK Computer Inc. Marvell 88E8001 Gigabit Ethernet Controller (Asus) [1043:811a]
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
Memory at febfc000 (32-bit, non-prefetchable) [size=16K]
I/O ports at e800 [size=256]
Expansion ROM at febc0000 [disabled] [size=128K]
Capabilities: [48] Power Management version 2
Capabilities: [50] Vital Product Data
Kernel driver in use: skge
Kernel modules: skge
05:03.0 FireWire (IEEE 1394) [0c00]: Agere Systems FW322/323 [11c1:5811] (rev 70) (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. IEEE 1394a Firewire Controller [1043:8294]
Flags: bus master, medium devsel, latency 64, IRQ 19
Memory at febfb000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Kernel driver in use: firewire_ohci
Kernel modules: firewire-ohci
Last edited by shaurz (2011-08-18 00:19:31)

No network connection btw WLC and access points

Hi,
There is no L3 network connection to some of the 1522 APs in our mesh network.
They register with the 4402 WLC (5.2.157.0)i.e. appear in the AP list. When sending ping packet to APs IP addresses from WLC or PC there is no response, but I can see APs MAC addreess with "arp" command. Users connected to these APs can not access wired network, also in Monitor -> Current clients -> Detail "Auth" is Yes for users who can access wired network and No for those who can not.
Any advice would be appreciated.
TIA.

Today I found out that AP-15 in the following mesh configuration was the source of the problem:
No network connection to AP-15 and it's child APs (AP-19, A-17, B-18, B-14,A-16),
when testing links with "child" (AP-19) and "parent"(AP-21) APs "Error: Cannot get
stats from the destination ap" message but it sends and receives packets to and
from other neighbor APs.
After Hardware Reset on WLC web interface AP-15 functions normally.
Here is the mesh configuration:
=======================================================
|| AP Name [Hop Counter, Link SNR, Bridge Group Name] ||
=======================================================
[Sector 1]
Central_AP-10[0,0,default]
|-AP-21[1,42,default]
    |-AP-15[2,31,default]
      |-AP-19[3,39,default]
        |-A-17[4,37,default]
        |-B-18[4,40,default]
        |-B-14[4,39,default]
          |-A-16[5,31,default]
    |-AP-22[2,22,default]
|-AP_02-12[1,26,default]
    |-AP_03-20[2,39,default]
Number of Mesh APs............................... 11
Number of RAPs................................... 1

Public/private network connections

I am trying to setup the network connections so that I have 2 public hooked into the company lan and 1 private which lashes directly into an iScsi target. The documentation is totally confusing and unclear as to how I can set this up in this fashion. I have looked at this site and the xen.org site with its howtos and other locations I am at a loss of how to accomplish this.

Hi
Our setup involves two nics on LAN (172.16.1.67 and 172.16.1.68) as well as a iscsi nic on 172.16.2.67 for SAN storage to Dell MD3000i.
Works fine. iscsi connectivity done with iscsi inititator rpms shipped with Oracle VM disk and we then use a series of out of the box bridges and some post customisation and routing tables to deal with the LAN. The Xen virtual bridges will be created for you by default - the only need for us to create further virtual bridges and routing rules is we use the VM for maskinging client netwoks of 10.10.x.x for example and ensure we can connect from the 172 network.
ta

Hi, I am trying to update an iPhone 4 from iOS 4.3.3 to iOS 7.0.4, and every time I try to update it comes up with an error message saying that there was a problem because the network connection was reset. Is there any way I can get past this and update?

The full message said:
There was a problem downloading the software for the iPhone "Judy's iPhone 4". The network connection was reset.
Make sure your network settings are correct and your network connection is active, or try again later.
I am trying to update the iPhone for my grandmother, Judy, as I am leaving for Paris on Wednesday night and we want to have Facetime installed on her iPhone before then, so we can stay in contact with each other. It is the simplest way for this to happen but the program simply will not allow me to update her iPhone.
Is there any way to get past this error and update her iPhone? Any help will be greatly appreciated.

Dear Jody..jone5
Good for you that can't update your iphone because I did it and my iphone dosen't work for example I can't download any app like Wecaht or Twitter..
Goodluck
Atousa

Bridging a network connection

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