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Bootp 2 subnets - Relay Cisco 2620XM

How do I setup a cisco 2620XM to forward bootp requests to a unix server that is on a different subnet.

What needs to happen: client on ip 10.12.x.x mask 255.255.0.0 is behind router 10.12.0.1 which is connect to 10.10.0.1 router this is where the server is located ip 10.10.0.4 mask 255.255.0.0.

Layout: Client-10.12-10.10-Server

What I would like to happen is router 10.12.0.1 bootp relay to 10.10.0.1 and 10.10.0.1 relay to unix server running bootp server.

How do I get this to happen??

Thanks, Mitchell

4 REPLIES
Bronze

Re: Bootp 2 subnets - Relay Cisco 2620XM

Mitchell,

Have you tried putting an "ip helper-address" on the 2620XM's 10.12.x.x interface ?

Example:

ip helper-address 10.10.0.1

This is for forwarding dhcp/bootp requests.

Daniel

New Member

Re: Bootp 2 subnets - Relay Cisco 2620XM

Thanks Daniel... Can I also use this "ip helper-address" to point the router 10.10.0.1 to the server??

Bronze

Re: Bootp 2 subnets - Relay Cisco 2620XM

Mitchell,

If you put the "ip helper-address 10.10.0.4" on the 10.12.0.1 router's 10.12.x.x interface the 10.10.0.1 router will automatically forward the bootp request to the server once it receives it because the 10.12.x.x router turns the bootp request into a unicast.

I hope this answers your question. Please let me know if you need anything else.

Daniel

New Member

Re: Bootp 2 subnets - Relay Cisco 2620XM

Thanks Daniel you have been a big help.

Mitchell

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