Dhcp across two network

Hi,
We are running into a problem with dhcp. Diagram is attached here.
portion on the left side belongs to Network A & right side is network B. These two networks are seperated by Firewall B.
Firewall B has minimal rules & permits traffic between the two Network A & B. On network B , 6506 does all routing.
The edge switch in Network B has users connected to it. But these users(vlan50) connected to this edge switch are actually belonging to Network A, they are physically attached there.
Layer 3 interface Vlan 50 - 172.16.50.0/24 is configured on the Firewall A & on its interface , dhcp relay is pointed to 172.16.70.10 ( dhcp server).
Firewall A does all routing for this portion in Network A.
Appropriate routing is in place on both sides. We have created vlan 50 ( layer 2 ) in Core 6506 in Network B.
We are trying to see if these users (in vlan 50-172.16.50.0/24) can get an ip address via dhcp server from Network A.
This proves to be unsuccessful.
It will be really helpful if people can help us out.
Thanks in advance.

John, thanks for the reply.
Layer 3 for Vlan 50 - 172.16.50.0 /24 is configured on Firewall A . The 6506 only has vlan 50 in its layer 2 database.
Helper address/relay pointing to 172.16.70.10 is configured on Vlan 50 interface on Firewall A.
Both the firewalls have the broad rules which permit all traffic in between these two segment of network.
Appreciate all inputs.

Similar Messages

Sharing iPhoto Events across two networked computersHi there,

Hi there, I have currently running a G5 Powermac and G4 Powerbook both running 10.5.2 I have now succesfully managed to set up a network share across the two computers. On the G5 I want to put all my photo's and videos so they are off the laptop hence freeing up space on it. When I open iPhoto on the laptop I can see the share with the G5 and the respective folders that pictures reside in but I cannot see the events that I have set up for groups of pics. Is it possible to share events in iPhoto across a network? Many thanks

Sorry, I decided to move my bigger Powerbook iPhoto library to the G5 Tower and save the few pics from the existing library on the G5 to the desktop to import later. I then relaunched iPhoto on the laptop holding the alt key and browsed through the network to the new library on the G5. On opening I get the message "The iPhoto Library is locked, on a locked disk, or you do not have permission to make changes to it." I checked the library file and its not locked and it says I have permissions to read and write (using APPLE i) so any ideas on where I go from here?

Home sharing across two wifi networks?

I have two wifi networks in my home and each is attached to its own cable modem. Can home sharing be used across both networks so I can see my Apple TV and my iTunes library at the same time in the remote app? Thus far, I have only been able to access them separately by switching wifi networks on my iPhone. All my devices are set up with the same Apple ID. My main computer is running Windows 7 and it is connected to network #1 via LAN and network #2 via wireless. All my speakers including Apple TV show up in the Airplay menu of iTunes. Apple TV is connected to network #2 solely for the reason that the signal is stronger.
Any ideas out there? This has been frustrating the heck out of me. Thanks in advance!

http://support.apple.com/kb/ts2972
http://support.apple.com/kb/HT4620
http://support.apple.com/kb/ht3819

Multiple VLAN's and relaying DHCP on two stacked SGE2000-G5 Switches

We have been set the task of securing a small managed office system which is currently set up with a standard switch allowing each of the offices (containing different companies) to see each other, and in some cases, access each others documents across the network.
Obviously this is a far from adequate set up and our aim is to isolate each office using VLAN's but share a common internet connection provided by the managed offices. We have two Cisco SGE2000-G5 layer 3 switches but we are new to Cisco equipment and VLAN's so we are not quite sure on how to implement this. DHCP would need to be provided by a Router, there is no Server. We are open to suggestions on the Router as we have yet to purchase one.
I hope someone can be of assistance.
Many thanks,
Jim

We will be using the SGE2000-G5 switch which supports Layer3. You suggested the following routers the other day, do these support Option 82?
wireless
RV120W - good feature set wireless
WRVS4400N - has gigabit speed ports as well as simplied webGUI
RV220W - most features with gigabit spped ports
wired
RV042 - dual WAN with port-based vlans
RVS4000 - Gigabit speed ports
Thanks,
Jim

Technical question: Is it possible to work on the same Lightroom catalog across two computers and have the catalog sync? If so, how??

Technical question:
Is it possible to work on the same Lightroom catalog across two computers and have the catalog sync? If so, how??
Here's a little more information on what I am trying to do.
I have a desktop computer with 4tb worth of pictures that has Lightroom and Photoshop on it. I also have a laptop with Photoshop and Lightroom. I would like to be able to edit those same pictures with their current edits that are currently on my desktop on my laptop. If this can be done, I'm sure I need to be on the same wifi network for my laptop to be able to access my desktop's photo library. I am technically savvy enough to map a network drive, but how do I get my two Lightroom catalogs to sync when I make a change on one of my computers? Would i be working only on one catalog? Or two separate catalogs that would need to be manually synced to the other computer? Would it be beneficial to put my lightroom catalog on something like dropbox?
I'd appreciate any information or tutorials if someone knows how to do this.

I do this by having my LR catalog and photos on an external drive that I swap between the two computers. I am on Windows and have the same drive letter assigned to the drive on both computers.
Because the photos are on a portable drive I back up the portable drive to another hard-drive every night or after important work, because portable drives are susceptible to damage or loss.

Is there a way to connect to two networks simultaneously?

Here is my scenario:
I am an audio technician who travels from venue to venue for work have to constantly switch between two networks to do my job. I use MAC OS w/ the most current version 10.9
Example:
99% of the time, there is venue provided wireless internet via DHCP, w/ no wired option available. I log onto it for all my internet related productivity. At the same time, I need to stay connected to a manual/static ip local network to remote & monitor audio hardware (wireless mic's, dsp drives, mixing consoles, etc). I have the ability to use either a wired or wireless connection for the local manual network (new airport express, or wired line).
I go to my network preferences in my system prefs and can see a green confirmation indicator that both networks are indeed connected. However, depending on which network i give priority to by "setting service order", the other network drops. For example, today Im using a wired line to remote/monitor my audio systems on my manual/static ip network and can stay connected as long as i set my ethernet connection at the top of the 'service order' list. As soon as I go to launch my Safari browser it says I am no longer connected to the internet, eventhough my network system preferences show I am still connected. The only way I can get the internet to connect is to reset the 'service order' and put wi-fi back on top. As soon as I do this though, my manual wired audio network loses it's connection.
I should note some settings. Today's networks:
wireless (internet):
ip: 10.100.1.159
sm: 255.255.0.0
router: 10.100.255.254
wired (audio network):
ip: 192.168.0.128
sm: 255.255.255.0
router: 192.168.0.1
Is there a way to stay connected to both, regardless of the 'service order'? I have a brand new airport express if putting something like that in-line helps in anyway.
Best,
Brian

Is there a way to stay connected to both, regardless of the 'service order'?
There can only be one active connection at any given time, no matter how many networks you may be connected to.

Two network cards configuration

Hi
I have problem with my network - I have two network cards and it seems they can't live both but I need them both so:
1st card (rtl8139) is connected to cable modem and gets ip by DHCP (eth0="dhcp" in rc.conf)
2nd card (nv forcedeth) is connected to router and gets ip by DHCP too (eth1="dhcp")
When I start them both -> 1st and 2nd card gets good IP by DHCP but when I want to ping google.com for example packet is lost.
What I want ? I want to use my eth0 (1st card) for internet and my 2nd card for local network.
##EDIT##
My resolv.conf is 192.168.1.1 but I need DNS from 1st interface -> how to do this?
Last edited by cpu (2007-02-22 22:46:09)

Messy setup IMO, but anyway....
Your faulty resolv.conf is the reason you can't ping google. Edit it manually as required, and then use the -R flag in /etc/conf.d/dhcpcd to prevent it being overwritten. DHCP on both interfaces will probably cause routing issues as well, in which case you will need the -G flag.

Clone disks across a network

Hi,
Just want to know if there is a way that I could clone 2 disks, one being a mirror onto 2 other disk on a different server, all disks are the same and the OS Solaris 10?
My thought is that I would need to break the mirror remove one disk and replace and clone it with dd or dump
ie. dd if=/dev/rdsk/c0t0d0s2 of=/dev/dsk/c0t1d0s2 Bs=128k
The reason being that the system is a production system and can not be down for more then a hour and I need more information to suppy the powers that be that it will take a longer time.
Given that I need to duplicate the disks onto the other server I won't to be sure that there is
1. no way to do this across the LAN
2. no way with out being in single user mode
3. no way faster then a disk clone one the same system
Any help would be great
Thanks

David,
I found the answer right after sending my question. If two user's label names don't match, the color-coding won't work. If they do match, the color-coding works across a network from user to user -- i.e. - I originally renamed my green label as "Copyright Okayed", but I only renamed it on my computer while all other computers still had the green label named as it's default, "Approved". As soon as I went onto the other computers and changed the green label name to "Copyright Okayed" in the Preferences, the color-coding worked.

Failing IP communication across the network with 3750x

Hi!
I'm facing a very odd problem. A week ago I've installed a 3750x on a client.
On it, was connected, a Lan2Lan fiber channel(with IP associated directly to
the interface) and a MPLS link(over a Cisco 2901) interconnecting a branch,
and several HP v1910 L2 swtiches.
By the day of the activation, everything works great. I have at this first moment,
configured static routes with IP SLA on the L2L link and, with higher cost on the
MPLS due the larger bandwidth of the L2L. It worked very well, and the tests of
redundancy were ok.
My problems started a couple of days after. First, I've lost the IP communication
with the L2 switches from the stations, but, from the 3750x, they still were
accessible(both telnet and ping).
And now, there's another problem. Because of a previous design, there are two
gateways configured across the network, all the stations and some servers,
use as the default gateway the IP 10.31.1.1, and several servers and other
appliances where configured with the gateway 10.31.1.2. So, as a workaround,
I had configured both address on the 3750x, the 10.31.1.1/16 as primary IP
and the 10.31.1.1/16 as secondary IP, both are on the VLAN 1 yet, as all the
devices. All the stations, servers and appliances are configured with
this /16 mask. And, it is working.
The problem is, every time that the communications between the branches
is changed from one link to the another, on some servers and appliances, after the IP SLA
take away the route, the communications only occurs if I manually change the
default gateway on the servers/appliance to the other IP, and, get back to the
previous one.
Does anyone saw something like that?

Carlos
The short answer is you can't as far as i know. You need to do NAT to able to do this and i don't think the Nexus switches support NAT.
You need a device that can NAT both address ranges. If prod is always the one that initiates the connection then you need static NAT translations for the test machines and you can dynamicaly NAT prod addresses as they go into the test env.
But if both prod and test can initiate connections then you need to have static NAT translations for both sides.
We used a pix firewall for this when we connected our prod and test environments. A firewall is a good choice because you can make the test enviornment the outside interface where all traffic is denied by default. You do not want test affecting prod.
Jon

How do I determine if my version of Adobe Photoshop Elements 10 is a volume license and can be deployed remotely and silently across my network?

Someone in our organization purchased a copy of Adobe Photoshop Elements 10 from Best Buy. It now needs to be deployed across the network and the deployment instructions at Silent install instructions | Adobe Premiere Elements 10 | Volume License version | Windows, explicitly state: Only Enterprise customers can perform the following procedures to silently install Adobe Premiere Elements 10 on Windows with an Adobe volume license (AVL). I'm assuming that I probably have the wrong version of the software, but is there a way that I can tell definitively?

EricPriest if the serial number is registered on http://www.adobe.com/ then it is likely a retail serial number. Volume license serial numbers are located at https://licensing.adobe.com/. You can find more details at Find your serial number quickly - http://helpx.adobe.com/x-productkb/global/find-serial-number.html.
If you wish to purchase a volume license for Photoshop Elements then I would encourage you to contact Adobe directly or an authorized volume license reseller. The copy you received from Best Buy is likely a retail version suitable for use by one individual to utilize on up to two computers.

PLEASE Help on two network cards in server

Hi all,
(Sorry my spelling Im danish)
We have a 10.4.5 server with 2 network cards in it. How does I get the server to route betwin the two networks so that mac's on net 1 (en0) can see mac's and printers on net 2 (en1) and visa versa
The mac's on net 1 can see and use the server (but not print on net 2) The mac's on net 2 cant see or use the server!
The mac's on net 1 get backuped by Retospect on the server. Retospect can't see the mac's on net 2
How does I get this to work?

"sudo sysctl -w net.inet.ip.forwarding=1"
That will start forwariding immediately but woun't survive a reboot.
In Tiger Server Admin NAT setup you can make this permanent by choosing "start Ipforwarding Only".
(Or by adding a line to /etc/hostconfig:
IPFORWARDING=-YES-
Or by adding a new file /etc/sysctl.conf
with this line in it:
net.inet.ip.forwarding=1)
"Devices on each network need to know how to get to the other network, and that's usually done by editing the routing table on each system."
Not necessary. What's necessary is a static route in each Internet router that use the server IP for each LAN as the gateway/router for the other LAN.
Example network 1: 192.168.100.0/24
Internet router 192.168.100.1
Server IP for that LAN 192.168.100.254
Static route in Internet router: 192.168.200/24 gw 192.168.100.254
Example network 2: 192.168.200.0/24
Internet router 192.168.200.1
Server IP for that LAN 192.168.200.254
Static route in Internet router: 192.168.100/24 gw 192.168.200.254
"In addition it's not common for a printer to have an option to manipulate the route table in this way"
Correct, but you need to add the correct gw/router and netmask to the printer IP settings for this setup. This is sometimes achievable via Telneting to the printer in question to set it up (older Apple printers).
For performance reason it could be better using a static route in each machine if the internet router doesn't send out route redirect packets.
Some DHCP servers should be able to send out a static route to it's clients with the rest of the IP info thus making it easier to provide each machine with a static route.

Dbconsole configuration - two network cards

Hi,
I have two network cards in the Solaris server and
Oracle 11g2 EE database server.
One network card is used for connection to the application (data network). Connection though standard port 1521.Database configured using server name defined for Net1 card and I can connect to the Oracle database using net1 card from apps server.
Second card is the management card (connected to the management network).
Is it possible to use it for connection to the dbconsole installed in the database ORACLE_HOME?
If yes, how I should configure dbconsole that I can see dbconsole web window through net2 card.
Thanks,
Oleg

Messy setup IMO, but anyway....
Your faulty resolv.conf is the reason you can't ping google. Edit it manually as required, and then use the -R flag in /etc/conf.d/dhcpcd to prevent it being overwritten. DHCP on both interfaces will probably cause routing issues as well, in which case you will need the -G flag.

Connecting two networks with wireless bridges

Hello all,
We are trying to create a true CAN. We have 2 sets of 2 buildings each. One set is on the 172.23.x.x network and the other set is on the 172.25.x.x network. Each set has routing in place to go out over their respective MPLS circuits (which will be removed once this project is done). Each set also has their own vtp domain each containing ~30 vlans.
Right now, there is a wireless bridge at each set of buildings and they can reach each other fine according to the vendor. I am trying to figure out an efficient way to tie these two networks together keeping their current vlan and local topology in place.
Site 1:
Vlan 1: 172.23.1.x
Wireless bridge: 172.25.1.x
Site 2:
Vlan 1: 172.25.1.x
Wireless bridge: 172.25.1.x
Any help is appreciated. The idea is that all traffic from site two will now traverse the wireless bridge and use all resources and routing available at site 1.

OK wel now the only solution left for you re-designing the IP addressing or if you want same ip address either increase the scope or range of ip address per vlan or use DHCP server to provid Half the address to both sides. but the interface connecting interface must be a Layer 3 or Layer 2 ports.The only concern should be DHCP server vlan over lapping can be manage by Configuing VTP (Client/Server) .
(Switch) ====wireless------------------wireless====(switch)
Trunk (Layer2 port) Trunk (Layer2 port)
and for vlan just if one dhcp server nothign to worry and incase of multiple server just load balance it will also provide the reduncency in you network.
other option is simple using L3 approach and change the ip address only for resourches you want other people to access.

NFS over two networks

I would like to export shares via NFS to two directories simultaneously, runninng OSX Server 10.4.8. One network is public (150.xx.xx.xx) and one is private (192.xx.xx.xx). The two networks can talk to each other via ssh, and I have the private authenticating against the LDAP directory on an XServe that in on both networks. However, I cannot seem to export NFS directories to both networks simultaneously, using the client IP option (everything is static). Maybe I'm missing some setting?
Can someone tell me if what I'm trying is even possible? If it is, how do I get it work?
Thanks in advance.

you would need to have the router/firewall at your church configured to forward specific ports of UDP and TCP traffic to the computer you wish to remotely control. Depending on the firewall, you may also have to sign the computer a static ip or a dhcp name. Also, if your churches ISP connection is not static you'll probable want to sign up and configure a service like DYNdns to handle IP changes.
Or you could use a service like logmein. most of the time you can just install it, and it worsk. so you don't have to know about firewalls, routers, static ip, DYNdns. You can use a mac, pc, or ipad to remotely connect to the computer.
If you want to go the Apple Remote Desktop Route, a good place to start would be to find out what kind of internet connection your church has, and if it's static or dynamic. As well as what firewall/router router they have. Along with what ever user name / password they've set on the router/firewall.
Personally I can do all this stuff; but I found logmein much eaiser and more reliable to use. And I don't have to worrya bout the router/firewall being reset.

Hyper-V 2012 R2 best configuration with Two network ports

Hi Team,
I have to design Six Windows 2012 R2 Hyper-v Cluster . Each Host is carrying Two network Ports of 1 GBPS.
10 to 12 Vlan will be configured across virtual machine on all six host.
please let me know how best i can utilize two network port to achive redundancy and speed and network isolation.
can i team two network ports into single team and than single virtual switch will carry for MGMT,Heartbeat and 10-12 VLAn traffic. is there any downside of it since i am merging all traffics on single tea.
Thanks in advance
Ravi

Hi,
If you are using the iSCSI share storage in a Failover Cluster will need 5 or more NICs:
More information:
Hyper-V VLANs part II
http://blogs.msdn.com/b/adamfazio/archive/2009/06/23/hyper-v-vlans-part-ii.aspx
Hope this helps.
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Dhcp across two network

Similar Messages

Maybe you are looking for