Nortel Networks Re: Nortel 8600 DHCP Relay (IP Helper) Question

Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Re: Nortel 8600 DHCP Relay (IP Helper) Question Frank Sweetser 04-28-08
Posted by Frank Sweetser on April 28, 2008, 9:00 am
Please log in for more thread options
> I was informed by my network staff that only one DHCP server is
> supported as a relay on the Nortel 8600. Is this correct? Here is what

No, that's not at all correct. We have three main DHCP servers here
which we relay to from each subnet.

> I am trying to accomplish:
>
> We have two DHCP servers, split 50/50, and would like to have the
> switches relay to both addresses. Either simultaneously or
> alternating. I know this is available with Cisco, but am unfamiliar
> with Nortel.
>
> This would be for redundancy purposes.

As long as you keep the configuration on your DHCP servers synchronized
so they never hand out conflicting information to clients, you should be
all set.

--
Frank Sweetser fs at wpi.edu | For every problem, there is a solution that
WPI Senior Network Engineer | is simple, elegant, and wrong. - HL Mencken
GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC

Posted by on April 28, 2008, 10:36 am
Please log in for more thread options
Thanks for the information.

Do you know if setting this up would be restricted to command line
only or if it can be done via the GUI?

Posted by Frank Sweetser on April 28, 2008, 10:21 am
Please log in for more thread options
> Thanks for the information.
>
> Do you know if setting this up would be restricted to command line
> only or if it can be done via the GUI?

No idea about the GUI (we rarely if ever use it here), but it's
certainly doable with the CLI. Just add multiple relays with the

ip dhcp-relay create-fwd-path

command.

--
Frank Sweetser fs at wpi.edu | For every problem, there is a solution that
WPI Senior Network Engineer | is simple, elegant, and wrong. - HL Mencken
GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC

Posted by on April 28, 2008, 10:52 am
Please log in for more thread options
Thanks a million.

Posted by John on April 30, 2008, 11:39 am
Please log in for more thread options
It can be done via the GUI as well. Pretty straight forward. Under IP
Routing and DHCP. Simply insert the D/G of the VLAN under AgentAddr and the
IP Address of the DHCP server under ServerAddr.

Add another with the same D/G and the address of the other DHCP server.

John Mitchell


>> I was informed by my network staff that only one DHCP server is
>> supported as a relay on the Nortel 8600. Is this correct? Here is what
>
> No, that's not at all correct. We have three main DHCP servers here
> which we relay to from each subnet.
>
>> I am trying to accomplish:
>>
>> We have two DHCP servers, split 50/50, and would like to have the
>> switches relay to both addresses. Either simultaneously or
>> alternating. I know this is available with Cisco, but am unfamiliar
>> with Nortel.
>>
>> This would be for redundancy purposes.
>
> As long as you keep the configuration on your DHCP servers synchronized
> so they never hand out conflicting information to clients, you should be
> all set.
>
> --
> Frank Sweetser fs at wpi.edu | For every problem, there is a solution
> that
> WPI Senior Network Engineer | is simple, elegant, and wrong. - HL
> Mencken
> GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC



Similar ThreadsPosted
Nortel 8600 DHCP Relay (IP Helper) Question April 28, 2008, 9:06 am
Re: Nortel 8600 DHCP Relay (IP Helper) Question April 28, 2008, 9:00 am
nortel netid dhcp proble April 3, 2006, 1:45 pm
nortel 8600 bandwidth June 12, 2007, 8:20 am
Nortel 8600 commands - How do I locate a MAC? March 23, 2006, 1:18 pm
i2002 DHCP issue June 23, 2005, 7:37 am
Old 616 Auxillary Ringer Relay November 14, 2005, 10:01 am
iBGP from Cisco 7200 to Nortel 8600 April 6, 2006, 4:34 am
Upgrading Nortel Passport 8600 from Release 3.1.5.0 to 4.1.1 October 24, 2006, 6:52 am
Defining a custom DHCP Option in NetID 4.4 September 13, 2005, 5:23 am
Contivity 1100 Frame Relay problem August 29, 2006, 11:17 am
problem with shifting client side ethernets on a Nortel Passport 8600 August 12, 2006, 2:35 pm
Nortel extension question April 18, 2007, 1:23 pm
Nortel CMTS 1000 - passwor question March 23, 2007, 1:07 pm
PP 8600 log msgs April 28, 2005, 11:20 am