Configuring Ethernet Ports

I have a Power Mac G5 that has 2 ethernet ports on the back. The first I use to connect to the internet. I would like to use the other one to connect to a Xerox printer. I think I have to use AppleTalk to do that, but I'm not sure that is correct. When I try to do that I'm informed by OSX that AppleTalk can only be active on one network port at a time.
How can I use the second ethernet port to connect to my printer?
Patrick

Thanks for your reply. I don't know very much about ethernet/appletalk, but somehow I managed to get the printer connected to the network. But it turned out that the setup wouldn't allow me to upload, via FTP a new driver, so I had to reconfigure the network anyway, and connected it to a DSL router. That works too.
In the process of learning more I've come across the term "CUPS driver" a few times, but I don't know what that is. Can you explain it to me or point me in the right direction to read about it?
Patrick

Similar Messages

Re-configuring ethernet ports

While creating websites for clients I always have the difficult task of attempting to make the end product I hand the client simple to use. Simplicity is an attributethat is … Learn More
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We currently use an old version of Dameware for onsite remote support.
Works OK but it's years old and well overdue an upgrade.
One thing we do like with Dameware is that there is no dicking around involved, it's installed on all our PCs and all we need to do is fire up the app, enter the name of the machine we want to connect to, the end user has to confirm that we can connect (this bit is important to us) and we're on - the whole process takes about 10 seconds.
I'm looking at ScreenConnect as it would appear that it can be used for both onsite clients and offsite clients (either our own people or guests) and the pricing looks attractive.
Is anyone using it in a 95% onsite support environment and if so how do you find it please?

How can I configure one of the gateway NI9792 Ethernet port to communicate with a cRIO PAC ?

Hi NI Engineers,
I intend to use my gateway NI9792 the following way:
1. One Ethernet port for network connection. That's how I'll develop it, download software and monitor my application through my PC at my desk.
2. Can the other port be used to communicate with a cRIO device? If so, how can I do it?
It seems to be a stupid question, but I truly could not work this out!
Thanks in advance,
Luiz
"Together we stand, divided we fall..."
Certified LabVIEW Associate Developer
Solved!
Go to Solution.

Good afternoon, Luiz
Follow the first link to guide which module can be used and other links to the best part of bore configuration CRIO. Any questions please contact us.
How Do I Configure My Time Server on the NI WSN-9791 or NI 9792 Gateway?
http://digital.ni.com/public.nsf/allkb/44FA322FAFF8D58D862575BD00591A54?OpenDocument
NI WSN Product and Configuration Guide
http://zone.ni.com/devzone/cda/tut/p/id/8710
Configuring the Dual Ethernet Ports on Real-Time Controllers
http://digital.ni.com/public.nsf/allkb/67F94BB93BCE32CF86257367006B3659?OpenDocument
video setup and installation CRIO
http://www.ni.com/swf/demos/us/crio/outofbox/
Automatic Network Configuration for cRIO-9073 and cRIO-9074 CompactRIO Controllers
http://digital.ni.com/public.nsf/allkb/37C790309A210A748625757000570938?OpenDocument
Sincerely,
Mauro Vera.

Can i configure each ethernet port to fixed and auto ip adresses?

Hi, i will be using a SSL Matrix Controller with Logic 9. This connects thru ethernet and requires a FIXED address. However, this Mac also needs to connect to the internet which doesnt use a fixed a address. Can I keep port one the way it is, and configure port two as fixed and have them both work properly? Are they completely independent of each ther?
Thx

Do you use a Router that you control?
If so, you can have fixed addresses easily -- just assign an address Manually that is in the same range, but above or below the ones your Router is likely to pass out automatically.
You can also assign a manual address to the second Ethernet port, but using it this way is complex. What does the device maker recommend?

Configuring the time capsule airport wlan function as "connect to wlan", the time caspule gets a correct IP adress from the other wlans IP range, but does not assign this to the ethernet ports. With Airport Express it worked!

Configuring the time capsule airport wlan function as "connect to wlan", the time capsule gets a correct IP adress from the other wlans IP range, but does not assign this to the ethernet ports. With Airport express it worked, the single Ethernet port got the IP Parameters passed through!
My setup is a Vodafon Esaybox connected to ISP. Time Capsule is not able to extend the wlan of the easybox, neither airport express can do.
Only the option "connect to wlan" is succesful.
With airport express I was able to connect my Sony Bravia TV to the lan via ethernet to stream pictures, the TV set got an IP adress from the easybox.
With the time capsule the easybox dosn't find devices connected to the ethernet ports to submit IP adresses. The TV set get another IP adress (169.xxx.x.x.) in subnet mask 255.255.0.0 and I don not now where from.
My notebook is a MacBook pro.
Any idea????
Thank a lot in advance!
Kind regards
Ingo

Neverthe less, could there be the chance, that this feature could be implemnented with an firmware update?
That would appear to be a question for Apple to answer. You can make suggestions to Apple here:
Apple - AirPort Extreme - Feedback
If the AirPort Extreme and Time Capsule are configured to "extend a wireless network" they will provide additional wireless coverage....and...the Ethernet ports are enabled in this type of setup.
The "catch" here is that you must have an Apple router providing the network to be extended.

Pa-mc-8te1 can i use this a ethernet POrt how to configure it ...

pa-mc-8te1 can i use this a ethernet POrt how to configure it ...

Hi Venkat,
Please ask this question in routing/switching forum. As far as i know you can only configure pa-mc-8te1 as E1 or T1 ports. For more details please visit the below link.
http://www.cisco.com/c/en/us/td/docs/interfaces_modules/port_adapters/install_upgrade/multichannel_serial/8-port_multichannel_t1-ei_8pri_install_config/8port_t1/2738ovr.html
Regards,
Kanwal
Note: Please mark answers if they are helpful

Nexus 5596 Ethernet Port Configuration

I have a Cisco Nexus 5596 with 48 Ethernet Ports (two of which are now configured for Fibre Channel). It has a FEX attached to it as well.
I was able to configure ANY Ethernet port with the typical interface commands when in interface configuration mode. However, I can now only configure existing and new Port Channel interfaces, FEX ports and standard Ethernet ports that have never been configured before.
If I try to configure an Ethernet interface that was configured in the past, I only seem to have access to global interface commands when in interface configuration mode. I can set spanning-tree, duplex, speed or any other interface parameters. The CLI acts like I'm not in interface config mode, but the prompt shows that I am.
Anyone else seen such a thing? I am logged in as admin.

Hi Mark
I suspect the interface in question is configured to be in a channel. Once an ethernet interface is configured to be in a port-channel. most interface commands need to be configured under the port-channel interface
Thanks
-Prashanth

Built-In Ethernet port configuration "grayed-out" in "Port Configurations"

Suddenly my "Built-In Ethernet" port configuration isn't clickable in Network Preferences' "Port Configurations" window. It's there but is "grayed-out" and the "On" clickbox won't take a checkmark.
Also, it's not showing up at all in the "Show" pull-down (since it's not clicked probably?).
My hub and modem are fine (i can connect to the internet with my wireless airport-laptop)except the "local network" indicator lamp on the hub where the ethernet cable is plugged doesn't light as it used to.
I recently had to delete some files so maybe that's why?
(Can't retrieve them, sorry! Maybe some names...)
Thanks much for any help!
here's the inf on my Desktop Mac which is running OS 10.4.9:
Machine Name: Power Mac G4
Machine Model: PowerMac3,6
CPU Type: PowerPC G4 (3.3)
Number Of CPUs: 2
CPU Speed: 1.42 GHz
L2 Cache (per CPU): 256 KB
L3 Cache (per CPU): 2 MB
Memory: 1 GB
Bus Speed: 167 MHz
Boot ROM Version: 4.6.0f1
PowerBook5,6 PowerPC G4 Mac OS X (10.4.9) PowerBook5,6 CPU Type PowerPC G4 (1.2)Number Of CPUs 1CPU Speed 1.67 GHz L2 Cache (per CPU) 512 KB M

well, what wonders an exercise break can bring!
I fixed the problem by looking on a backup disk for any files with the word "ethernet". I had done that on the local disk and didn't find anything of interest. But I did find these 4 files on the backup in a folder sitting directly on that external HD directory titled "System"inside of /library/extensions:
Apple_DEC21x4Ethernet.kext
AppleBCM5701Ethernet.kext
AppleBMacEthernet.kext
AppleGMACEthernet.kext
I copied them into my local HD's system/library/extensions EURIKA! the built-in ethernet has returned and I was immediately on line without any further adjustments.
The options that were missing as per my subject thread are all back.
Keep this one handy!!!
Thanks again for your help...I'm sure we'd have gotten there soon enough.
best,
Rob
PowerBook5,6 PowerPC G4 Mac OS X (10.3.9) PowerBook5,6 CPU Type PowerPC G4 (1.2)Number Of CPUs 1CPU Speed 1.67 GHz L2 Cach

Network Configuration Window Freezes When USB NDIS Internet Connection Sharing and Ethernet Port Are Used Simultaneously

Current Setup:
Asrock Extreme 4 Z77 mobo with built-in Broadcom NetLink (TM) Gigabit Ethernet. Windows 8 Pro. Intel i5-3570k (using onboard Intel 4000 HD Graphics). RAID0- 2 OCZ Vertex 4's.
I will refer to this setup as my tower.
The Ethernet port works fine by itself. When I use wired tethering with my Android phone (Droid 4 running on 4.0.4 Ice Cream Sandwich), it works fine when nothing is connected into the Ethernet port in the mobo.
The issue arises when I try to connect both simultaneously. The network configuration window in windows basically freezes and I cannot really navigate it without a ~60 second delay at best.
I would like to be able to accept the internet from my Android via a USB tether and either bridge the connection or use the internet connection sharing service to route traffic through the unused Ethernet port on the mobo (either to another computer/xbox
or more desirably a switch/router to spread to the entire home network). I have extensively researched the issue of Windows 8 become slow and unresponsive when I attempt to do this and I have not found anyone with the exact problem. I am able to
do both the MAC bridge miniport (bridge 2 connections) and Internet Connection Sharing though a Windows Vista (home premium) Laptop I have. The difference between the laptop and the tower I am try to do this on is the laptop has a WIFI and Ethernet connection
while the tower only has the on-board Ethernet.
Do I have all the necessary equipment to accomplish this, or do I need to buy a PCIe WIFI card? If so could I get away with just getting a USB WIFI dongle?
Any help would be very appreciated.

I had the same problem and came here by searching.
Per Rosengren's method solved the problem, but he didn't say how to do it, so I'll try to explain step-by-step for anyone that may venture here.
Open Device Manager (right click on Computer > Manage > on the left side, under System Tools choose Device Manager)
Choose the problematic device in Network Adapters (for me it's called HTC Remote NDIS based device)
Right click on it and choose Update Driver Software...
Click Browse my computer for driver software
Click Let me pick from a list of device drivers
Uncheck the box Show compatible hardware
For the manufacturer, choose Microsoft Corporation
Now you will have two options:
- Remote NDIS based Internet Sharing Device
- Remote NDIS Compatible Device
I chose the second one and it solved the problem, but if it doesn't work you could try the other one. In my case, the driver that was being used was neither of these, but a special driver from Android SDK ADT bundle.
Pick one and click Next. If a dialog comes up, confirm by clicking Yes.
Wait a few seconds for the connection to restart. If it doesn't work, try disabling and reenabling USB tethering on the phone, or reconnect the USB cable.
I should also note that I'm using a custom Android ROM on HTC Wildfire S (unofficial Cyanogenmod). If you have a stock ROM with HTC Sense, maybe this method may not work and you'll need a proprietary HTC driver.

Built-in ethernet port not working in unibody Mac Mini

Hi,
So ever since I acquired this new mac mini I haven't been able to get it to recognize any devices connected via ethernet. I obviously checked the cables and all is good there. I tried connecting it to another mac, and while the other machine was detecting a device (the mac mini) at the other end of the cable, the mac mini kept saying that the cable is unplugged or the device off.
After several days of having the issue I decided to remove the ethernet service from the network preference pane to set it up again but to my surprise, the built-in ethernet option was not available (I only got airport, firewire, bluetooth DUN, VPN, PPPoE and 6 to 4). At this point I tried removing the networkinterfaces.plist file form the system configuration folder in the system preferences folder to no avail. I then tried to zap the PRAM, NVRAM, reset the SMU, SMC and all that kind of things to get the port recognized by the system but no luck.
When I look at the system profile I get these weird results in Ethernet Cards:
pci14e4,4353:
Type: Other Network Controller
Bus: PCI
Vendor ID: 0x14e4
Device ID: 0x4353
Subsystem Vendor ID: 0x106b
Subsystem ID: 0x0093
Revision ID: 0x0001
Link Width: x1
BSD name: en0
Kext name: AppleAirPortBrcm43224.kext
Location: /System/Library/Extensions/IO80211Family.kext/Contents/PlugIns/AppleAirPortBrcm 43224.kext
Version: 425.16.2
Comparing it to other macs I have It should read "ethernet" rather than that strange pci name on top and the kext name shouldn't read airport but something like AppleIntel and in location it shouldn't direct to the IO80211Family.kext package but rather to the IONetworkingFamily.kext.
So I popped in the system install DVD and fired up System profiler and at that point I didn't even get an "ethernet cards" option in the left side pane. So this is leading me to believe that the hardware is not being recognized at all, so maybe it's damaged. I did replace the HDD with a bigger one and change the RAM modules to bigger ones but I don't think I could have damaged the hardware in these processes, also I don't see how this would affect the ethernet port as it's integrated to Motherboard and didn't messed with it at all (I was very careful, to say the least!).
The last thing to do is reinstalling the system but I don't think it'll help (after seeing that the ethernet port is not even being detected by the install OS) but I need to offload all the data from my internal disk and at the moment I don't have an spare drive to do it.
So, what's the recommendation? A field trip to an Apple Store? Closest one is like 3,000 km from where I am right now, so...
Well, thanks for any pointers, suggestions and help in general.

I do not have any answers for you. Yes it appears to be reading what should be an ethernet card as an AirPort card. Have you played around with trying to install another version of Mac OS X other than the version that shipped with the Mac mini? Apple has long told us that we should not install a version of Mac OS X that was older than the shipping version. With the Mid 2010 Mac mini, the Restore DVD has the only version of Snow Leopard that will work with this Mac mini's specific hardware. At least until Apple releases 10.6.5. If you have installed other versions of Mac OS X, then erasing the HDD and installing the OS from the Restore DVD(s) that shipped with the mini may get you back to the point you need to be.
Unfortunately I think that you voided your Apple Warranty when you installed the different HDD. That was always a question in the past when folks wanted to open the former version of Mac minis and upgrade the RAM. But with the 2009 models folks started reporting here in the Apple Discussions that Apple was informing them that they had voided their warranty by opening their Mac mini. This new model made the RAM user upgradable, but the User Manual specifically states on page 43, 54 and 61 that there are no user serviceable parts in the Mid 2010 Mac mini except the memory.
Dah•veed

Can I use the Airport Express to connect to a Linksys Wireless Network and then use the Ethernet port on the Airport for a wired connection to a device for internet access? Would I be able to then also use that Ethernet pt to a Ntwk Hub for more wired c

Thanks for the help. Looked but not clear on what I am trying to do as being possible. Can I use an Airport Express to connect wireless to a Linksys Wireless Router, such that I can then use the Ethernet ports on the Airport to either connected to a PC wired, or even use a hub off the Airport Express to allow multiple wired connections to it?
I am not looking to have the Airport Express extend my wireless network, just connect to it and provide me wired connections in a different location from where my Linksys Route is located. Would prefer to replace Linksys with all Apple, but just not possible financially yet. Thanks for the help.

If the AirPort Express Base Station (AX) is an 802.11n model, then yes, you can reconfigure it as a wireless Ethernet bridge. In this configuration, the AX would join the wireless network provided by the Linksys router and its Ethernet port would be enabled for either a single wired device or for an Ethernet hub or switch for multiple devices.

Airport Extreme - creating a wired local network from a cellular hotspot without ethernet ports?

Forgive the book I've written below, please. I generally think too much info is better than not enough... I'm looking for assistance and/or suggestions since I have been unable to locate solutions on my own so far. Searching this forum has found a great number of "sort-of" related things, but all of them so far appear to involve apple-only hardware or upstream network devices which have ethernet ports. Nothing that seems to match my situation enough to extrapolate out. Maybe I'm just using the wrong keywords. Anyway....
I've recently moved to a particularly rural area with no wired internet access to speak of (well, I suppose there is dial-up, but... yeah). I've tried several different wireless varieties including satellite, the AT&T Elevate 4G hotspot and a service that used an EVDO-cellular solution(a sprint-based reseller). The former had serious latency issues which I had predicted and so was right-out. The last had signal coverage problems which their maps did not accurately reveal. Their potential mitigation was to have me invest even more money into a super-mega antenna to be roof-mounted. And even that was an uncertain fix. The AT&T solution with the 4G hotspot has been AMAZING so far and I love it. Coverage is great, latency and bandwidth fantastic.
I love it but for one exception, that is. Connectivity options.
There is a particularly limited number of WiFi connections available and only a USB network adapter for a single computer. None of my wired-only network devices can connect directly and I have significantly more WiFi connected devices in general use than the device supports.
I have an Airport Extreme that I was using as my primary connection point through a FiOS router at my previous home(and both the satellite and EVDO modems at the new place). Never had any problems with it when feeding its WAN port with one of the various routers' LAN ports. However, as has been evident by reading all sorts of posts here and elsewhere, having it connect via WiFi to the Elevate means that the ethernet ports are disabled. Not terribly useful.
The Elevate has no ethernet ports. Only WiFi and USB network connectivity.
The Elevate does not appear to have settings available to create a WDS network-- so it cannot be "Extended" via those methods, either, as far as I am able to tell.
So these are some thoughts I've had. Before I invest the time and money into them(both of which are in extremely short supply lately), I'd like to know if anyone else has already solved the issue or can tell me definitively whether these ideas, or some I haven't thought of, will or won't work. Any helpful feedback or thoughts would be sincerely appreciated.
Options I've considered, but are uncertain:
-A Wifi/Ethernet or even ethernet-only router which has a USB WAN uplink(I've had a few bites on searching, but nobody seems 100% clear on the capability for the models I've located). I could plug the Elevate into that USB port and then from there I'm golden. If this is the best option, then can someone recommend a brand/model that they know will work in this way?
-WiFi Access Point (Airport Express, maybe?) that will connect to the elevate via WiFi, and then use its single Ethernet port to serve as the APExtreme's WAN uplink. (I don't know if this will work at all, actually...)
-Connect to the computer via USB, run some kind of network bridging software (which I don't know what the heck that would be) to bridge between the USB Network and the Ethernet port, then run a hard wire from there to the APExtreme's standard ethernet WAN uplink. This is going to be a "last resort" option since it involves software I'm unfamiliar with, even unsure of availability for Mac, and requires the computer to be running and configured properly at all times. Given the way my kids abuse a computer, I can't be certain of anything involving this option.
-Some secret method of turning on WDS capabilities in the Elevate which would then allow my existing base station to become a second node in the chain. I really wish someone could tell me this is possible if only I'd push the right buttons. I see this is as the absolute best option, if it can be done. Cheapest, anyway.
Current set-up:
AT&T Elevate 4G hotspot
WiFi connected devices(rotating since Wifi connection count is limited): Mac PC, 2 iPads, 3 iPhones, Apple TV, a Nokia mini-tablet, a Kindle fire, Wii, XBox 360, an old dell laptop issued by my office.
Apple Aiport Extreme base station
Wired connections: blueray player, television, satellite TV pay-per-view uplinky device thing.
Please, tell me your thoughts?

Had the same issue here. Here is the best solution I have found so far:
Hotspot + Pepwave Max On-The-Go (w/ Load Balancing) + Airport Extreme
I have a VZW MiFi, but I believe this set-up will work with other hotspot devices. I actually have 2 MiFi Hotspots with a monthly allowance of 20G each. They are plugged directly into the Pepwave router (aka, tethered). (Note: you have to have the right cable to do this. The one that came with my Hotspot was only for charging.) If, for some reason, you cannot tether with your Hotspot device, you want a router that offers WiFi as WAN. The Pepwave will do this. The Pepwave is connected to my Airport Extreme via ethernet cable. I have the WiFi on the MiFis and the Pepwave turned off. So the only visible network is my Airport Extreme. The Pepwave is essentially just functioning as a modem.
I used to have a Cradlepoint, but I did not find it very user friendly--too complex for home use. The Pepwave Max OTG is awesome. I got the one with Load Balancing so it allows you to connect up to 4 cellular devices. If you only need the one Hotspot, you can just get the cheaper Pepwave Max OTG. The Pepwave allows me to run off one of the MiFis until I hit my 20G/month allowance, then it automatically switches to the other one. That way I never max-out on my monthly data allowance. Additionally, it gives you a real-time, hourly, daily and monthly running tally on data usage.
The guys at the 3Gstore are excellent and can help you figure out the best solution for your situation.

RT: How do I use two independent Ethernet ports?

I have looked around at the forums and seems like no one has had a real solid answer or example on how to use 2 Ethernet ports with RT.
Right now I have two connections configured on the RT:
Primary Connection:
IP:192.168.2.181
Subnet mask: 255.255.255.0
Gateway: 192.168.1.1
DNS Server: 192.168.1.1
Secondary Connection:
IP:192.168.1.180
Subnet mask: 255.255.255.0
Gateway: 192.168.1.1
DNS Server: 192.168.1.1
After using this initial setup, I made a RT project where I used 'UDP Open' for both 192.168.2.181 and 192.168.1.180, and had them both read and write in a sequence (Read and Write for the 2.181 connection, then Read/Write for 1.180).
The computer I'm using to send the data is connected to a switch, which in turn is connected to the RT. Both the RT and my host computer have 2 ports, one of them with ports configured to be 192.168.2.x and 192.168.1.x
Using this configuration I get some weird results:
If I send a packet to 192.168.2.181, I receive it from the UDP Receive vi that has an input connection from my UDP Open assigned to 1.180. I also receive the data the same way when sending packets to 1.180 (as expected). Basicly, no matter what IP I'm sending it to on the RT, the data from either packet will arrive from the same location/vi.
Why is this? Is there anyway to fix this? Did I not configure something correctly?
Does anyone have an example of dual Ethernet ports actually working with LabView RT?
I tried checking out "KnowledgeBase 3VQ6278T: Can I Use Multiple Network Adapters in a PXI or Desktop Real-Time System?", but after following the link to the page, I get:
"Error You are not authorized to view this document". Can any NI people look into this?
Having to make two IPs with different subnet masks obviously just makes things unnecessarily complicated. Can anyone tell me why LabView/NI did this? I know for a fact this isn't a limitation in hardware.
Any help would be greatly appreciated, thanks!

Hey Weizbox.
Sorry to hear you're having such a difficult time using multiple ethernet devices with RT.
Let me go ahead and get the easy stuff out of the way, the link you
have is dead because it's archived (and thus removed forever) though
unfortunately the link on ni.com wasn't corrected to point to the
following resource, which the KB was a word-for-word duplication of
(which is supposedly why it was removed):
http://zone.ni.com/reference/en-XX/help/370622C-01/lvrthelp/configuringdual/
Unfortunately, though, it's much less useful than it sounds.
Before you start feeling like a woodpecker in a petrified forest, lemme
fill you in on why the requirement is there for the two ethernet NICs
to be on seperate subnets. Simple enough, it has to do with the
network stack on both of the operating systems used for LabVIEW
Real-Time - however, the same falls true for even Windows (without
using fancy vendor-specific drivers), so let's not be too hasty.
Neither PharLap ETS nor VxWorks, the two OS's used under the hood,
support redundant network ports. Because of this, if you give two (or
more in the case of PXI and RT Desktop) ethernet devices IP addresses
on the same subnet the routing tables in the network stack get horribly
confused and literally cannot resolve the proper adapter, which either
brings down the ethernet on the entire system or makes it such that one
or more network adapters becomes useless and one adapter takes over all
network traffic (there's no way to predict which adapter that will be,
nor can you control it based on what's plugged in and what's not). On
Windows this is handled by bridging the adapters, but RT does not yet
support bridging (that opens a whole nother can of worms). Long story
short, you still wouldn't be able to give both NICs individual IP
addresses on the same subnet.
Let's take that even one more step. You cannot simply just assign both
ethernet NICs different IP addresses on "virtual" subnets, you actually
need to put both NICs on literally different subnets for the network
routing to actually work. Multiple ethernet devices for LabVIEW RT
were designed with the following mantra in mind - "The FIRST ethernet
device is designed for a TCP/IP network, the SECOND and SUBSEQUENT
ethernet device is designed for OTHER protocol uses." By "OTHER
protocol uses" I mean the second NIC should be used for RT
Deterministic Ethernet (PXI, RT Desktop, et. al.), direct connections
with other targets, and 3rd party or custom ethernet protocols.
Now, realistically, we can't expect users to not use the second NIC for
TCP/IP use, nor should we. However, if you ARE going to use TCP/IP on
the second NIC, you should only use the second NIC for connecting to an
unroutable network in the eyes of the first NIC. So, for instance, the
FIRST NIC can have an IP address of 10.0.62.128, but the SECOND NIC
would need to have an IP address on 192.168.100.23 - and the
10.0.62.128 should not be able to route a TCP packet to the 192.168.x.x
network, and vice versa. In your example I noticed that both networks
used the same Gateway - unless your Gateway is configured to identify
and seperate the two networks, it's not going to end well, and you
shouldn't expect to be able to send data from one NIC to the other NIC
(at least with what you know now). To reiterate, using multiple NICs
using TCP/IP should only be done in cases where you've got (n-1)
isolated subnets, where n is the number of NICs you have using TCP/IP.
A classic example of this is a command-based measurement environment;
the RT system uses the FIRST NIC to talk to a TCP/IP network, in order
to transfer data or provide status to a network, and the second NIC is
connected to a TCP/IP network designed specifically for measurement or
control, where one node sends commands to a single or multiple nodes on
the network at once to perform tasks (like "Take a Measurement", "Stop
a motor", "Bake me a Pie", etc...). The isolated TCP/IP subnet is free
from "random" TCP/IP traffic (especially system announcement
broadcasts) and can have whatever topology/configuration it wants. The
dual networking allows the RT system to work/communicate/perform on
both networks.
I hope this helps shed some light on your situation.
Cheers!
-Danny

How to specify one ethernet port for network home directories (other for normal filesharing)?

So I'm trying to get Home Directories up and running on a 10.6.8 Xserve (waiting until I get my NFS sharepoints migrated to a Linux server [for other reasons] before moving up to 10.7 Server). But posting here since that will be happening in the next few weeks, and it might be applicable now (so I can at least get that resolved ahead of time).
I have a different DNS entry for each ethernet port: server.office.domain.com at 192.168.0.11 for the first, and homes.services.internal at 192.168.0.10 for the second. DNS lookups for both resolve correctly (as does the reverse lookup).
If I use the Server Admin to pick a sharepoint as an automount for Home Directories, everything is fine, but it picks the server.office.domain.com hostname. Picking that works just fine, but that is also the connection that feeds the filesharing. I'd prefer to split that home directory traffic out onto the second ethernet port. So I tried just duplicating the initial connection (since it can't be edited directly in Workgroup Manager) and changing the hostname to the internal one, but I get an error when attempting to log in (the client login screen gives a very helpful "Couldn't login because of an error" error message) and don't see anything in the server logs.
The client machine shows the following line:
Code:
10/20/12 5:27:42.688 PM authorizationhost: ERROR | -[HomeDirMounter mountNetworkHomeWithURL:attributes:dirPath:username:] |
PremountHomeDirectoryWithAuthentication( url=afp://homes.services.internal/Users,
homedir=/Network/Servers/homes.services.internal/Volumes/HomeDirectories/Users/ user123, name=user123 ) returned 45
(added line breaks so it didn't extend off the page)
So it looks like this is failing because the automount isn't in place, but I'm not sure how to work that out either (i.e. how do I add that making sure it uses the internal hostname?).
Any suggestions on getting this to work?
I realize one solution is just to LACP the two ports, but that is a different ball of wax (I may do that later if I get a 4 port ethernet card and performance limitations demand it).

A possible solution might be this.
On ADSLBOX and CABLEBOX configure different subnets for the LAN, e.g.
ADSLBOX: 192.168.1.0/24
CABLEBOX: 192.168.2.0/24
The MEDIABOX gets these static IPs:
ADSL-LAN: 192.168.1.2
CABLE-LAN: 192.168.2.2
On the MEDIABOX, configure the two network interfaces using two routing tables.
The ADSL-LAN routing table
ip route add 192.168.1.0/24 dev eth0 src 192.168.1.2 table 1
ip route add default via 192.168.1.1 table 1
The CABLE-LAN routing table
ip route add 192.168.2.0/24 dev eth1 src 192.168.2.2 table 2
ip route add default via 192.168.2.1 table 2
The main routing table
ip route add 192.168.1.0/24 dev eth0 src 192.168.1.2
ip route add 192.168.2.0/24 dev eth1 src 192.168.2.2
# use the CABLE-LAN gateway as default, so general internet traffic from MEDIABOX runs over CABLEBOX
ip route add default via 192.168.2.1
define the lookup rules
ip rule add from 192.168.1.2 table 1
ip rule add from 192.168.2.2 table 2
To test the setup:
ip route show
ip route show table 1
ip route show table 2
I don't know how to persist something like this in ArchLinux using netctl. Might require to write a special systemd unit for it. Above is a working example from a RedHat box at my company.
Last edited by teekay (2013-12-04 07:42:22)

How can I get on the internet with my newly purchased used G5 Power Mac if my ethernet port failed?

We just bought our son a used G5 Power Mac, but when we got it home and tried to hook it up to the internet, no luck. We changed ethernet calbes, tried plugging directly into wall cable (by-passing router), even tried to do manual config, but no luck. I took it to the Genius Bar today and they said the ethernet plug was broken, and they did not have anything for a "vintage" machine like this.
The Genius Bar tech told me to buy a USB Network Adaptor, however no one (Best Buy, Radio Shack, even searched the internet) seems to have them for Mac. What can I do to get this puppy connected to the internet and how much would it cost? Did we get screwed?
Here is the seriel # + info that the seller gave us:
Seriel # G8******QPM
Mac OS X 10.5.8 (9L31a)
< S/N Edited By Host >
The Powermac G5 Dual Core 2.3 is powered by a "dual core" 2 GHz PowerPC 970MP (G5) processor with dual optimized AltiVec "Velocity Engine" vector processing units (one per core), four double-precision FPUs (two per core) and a 1 GHz frontside system bus. It 's configured with 4 GB of DDR SDRAM, a 160 GB (7200 RPM) Serial ATA hard drive, a 16X dual-layer "SuperDrive"
Connectivity includes USB 2.0, FireWire "400" and "800", Two DVI port, optical digital audio in/out, two independent Gigabit Ethernet ports. All of the "multiple core" equipped Power Macintosh G5 models have three open PCI-Express (PCIe) expansion slots. The Power Macintosh G5 Dual Core 2ghs uses an easy-to-upgrade "anodized aluminum alloy" case with a removable side panel for easy access to internal components. Likewise, it is divided into four different thermal zones with nine computer-controlled fans for optimum cooling.

Sorry, the 2ndlink should be...
http://eshop.macsales.com/item/NewerTech/MXP2802NU2C/
Fully Mac OS X supported with with on-screen
menu set-up and full user manual.
http://eshop.macsales.com/item/Asus/USBN10/
OS Support Mac 10.4/10.5/10.6
I don't have those exact models, but have seen others here use them.

Configuring Ethernet Ports

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