I wish the solution is this easy but you can't create 2 subinterfaces and
create 2 ip addresses on those because they have to be encapsulated. Since
I'm not using any form of trunking, there is no way I can use 2
subinterfaces with 2 ip addresses.
Thanks for the try though.
""Liang Mark J Civ AFRL/PROI"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Try to create two subinterfaces the fa0/0 (fa0/0.1 and fa0/0.2)and place
the
> ip helper 192.168.1.11 command on both subinterfaces.
>
> Hope that work, good luck.
>
> Mark,
>
> -----Original Message-----
> From: Kenneth [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, May 30, 2001 9:34 PM
> To: [EMAIL PROTECTED]
> Subject: GIADDR and secondary ip address problem. [7:6568]
>
>
> Hi, guys. It's been a while since I've posted something here but I'm
pretty
> stumped with this problem somehow. Anyway, here's my problem:
>
> Remote office subnet: 192.168.5.0 255.255.255.0
> Plan to change subnet into 192.168.19.0 255.255.255.0
> Router relaying dhcp requests to 192.168.1.11 (DHCP Server in Central
site)
> Current fa0/0 interface on LAN: 192.168.5.1 255.255.255.0
>
> I recently configured the interface to have
> 192.168.19.1 as its primary address
> 192.168.5.1 as its secondary address
>
> On the DHCP Server, I've deleted the 192.168.5.0 scope and activated the
> 192.168.19.0 scope
>
> The reason I have 2 ip addresses on the FastEthernet interface of the
router
> is to allow people who haven't rebooted their computer to still be able to
> access email and services at the central site and print to their local LAN
> LPR printers...
>
> The problem I'm having is that once the computers have rebooted, and I did
a
> debug ip dhcp server events, packets, linkage, I keep seeing the router
> still setting the GIADDR of the request as 192.168.5.1 ... since it's
> forwarding this information, the DHCP server on the central site wasn't
> responding because of the non-existence of the 192.168.5.0 scope
>
> Reading Cisco's documentation, I thought the router uses the primary ip
> address of the interface as its GIADDR?
>
> I have read something about ip dhcp smart-relay but I doubt it applies to
> this problem...
>
> BTW, this is the way that it should be done and I know a lot of people
hate
> the "secondary" ip address but I'm really trying to make this change as
> transparent to the users as possible!
>
> Thanks guys!
>
> Kenneth
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=6668&t=6568
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