Quick and easy way to find out if the packet is reaching each segment is
.....
On each interface i.e. interface where user is, interface where DHCP server
is do...
ip accounting output-packets or just plain old ip accounting.
you should then do show ip account.
This should show you the ip address 255.255.255.255 being helpered to
whatever your address is. At this point take a note of the mac address of
the requester.
See if it is coming through to your server.
Now......If it is then the cisco devices are working properly, back to the
drawing board.
If it isn't getting to the server then come back. I have encountered a few
gotchas doing this before.
Hope this helps.
-----Original Message-----
From: Larry Lamb [mailto:[EMAIL PROTECTED]]
Sent: 23 February 2001 10:15
To: [EMAIL PROTECTED]
Subject: Re: DHCP- Advise / Suggestions Apprciated
Everything I've found on Cisco tells me that multiple helper addresses are
supported and I would have to assume that it's forwarding the packet to both
helper address and is taking the response from the first machine to respond.
Any chance you can define part of the scope on each server? This would
ultimately solve the problem. Without a sniffer on both segments it's going
to be difficult to tell exactly what's happening unless someone has already
worked with this and has more input.
"Gayathri" wrote in message <975b6q$d4v$[EMAIL PROTECTED]>...
>Firstly, sorry for the repeated submission, I dont see my psoting under
the
>main heading so I am forced to post it again..
>
>here is my question...
>
> I have 2 DHCP servers and I have defined both the IP helper addressess in
>our routers
>
>Now, if a client quieries for an IP, which of the servers will respond
>first?
>
>The problem I have is we have defined one subnet in DHCP Server and not in
>the other.
>
>When this user is querying for an IP , he is not getting a response.
>
>interface Ethernet0
> ip address 10.X.X.X 255.255.0.0
> ip helper-address 10.X.1.X
> ip helper-address 10.X.1.Y
>
>The said subnet is defined in the DHCP server 10.102.1.Y but, still there
>is no response. when the client requests.
>
>The main reason we have 2 DHCP servers is for redundancy.
>
>Please note that they are independant of each other .
>
>Does this mean that , when the client is requesting, the router first
>forwards to the first DHCP server and since it is not getting a response ,
>is dropping it?
>
>Thanks
>
>Gayathri
>
>
>
>
>
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