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Re: DHCP on multiple interfaces in different networks



On Jun 29, 2005, at 9:13 AM, Robert Frank wrote:

I just ran into a pecurliality:

I'm runing Tiger server with latest patches, I've enabled both interfaces, one being on the university's official network, the other on a private gigbit network which connects all servers (no gateway, no router) on their second interfaces.
I wanted to enable DHCP on both interfaces, where each interface serves different IP networks. The 'Server Admin' application provides checkboxes to select the interfaces for which the service is to be available. You can enter different network addresses and ip ranges, and you can successfully start the service. 
However, when I look into the log files (and try out the services on the different networks), only ONE network is serviced, never both. If I select either one (but not both) interfaces, all is fine for the corresponding IP address.


Is this a feature, or a bug? Anyone else noticed this? 

Departement Informatik   FGB   tel   +41 (0)61 267 14 66
Universität Basel                          fax. +41 (0)61 267 14 61
Robert Frank
Klingelbergstrasse 50                 email@hidden
CH-4056 Basel
Switzerland                                   http://www.informatik.unibas.ch/personen/frank_r.html



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I had been able to do exactly what you are talking about on a 10.3 Server. However, I ran into the same problem when I tried setting up a new test server running 10.4 Server. I final got fed up enough with trying to do in manually, that I ran Apple's "Gateway Setup Assistant". Although it did things a little bit differently than I wanted, it did work, then I went in and tweaked the settings that the assistant had made so that they were closer to my liking. Just a note, NAT had to be turn on (the assistant turned it on by itself) for all this to work.


After I had the system working with 2 NICS (Built-in and 1 PCI) I decided to see how well the assistant would work. I threw two more NICs into the system (G4 Tower) and ran the assistant again. Once again I needed to go in and tweak the settings but it worked. I had four separate subnets working and communicating properly with one another (including three PCI NICs plus the built-in ethernet). I still don't know what all Apple has changed, but I do know that the assistant seems to be a viable work around until it's figured out.

Robert Marking
Technology Support Specialist
Stillwater Jr. High School
523 West Marsh Street
Stillwater, MN 55082
651.351.8910
651.351.6999 fax
email@hidden

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References: 
 >DHCP on multiple interfaces in different networks (From: Robert Frank <email@hidden>)



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