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New Member

ip helper-address not available on C870 router

I discovered the interface config command ip help-address is not available on my C870 router running

Cisco IOS Software, C870 Software (C870-ADVIPSERVICESK9-M), Version 12.4(4)T4

How can I get my DHCP client PC requests coming in on Fa0 to be routed via my IPsec site-to-site VPN back to my home office network DHCP server?

Thanks.

4 REPLIES
Hall of Fame Super Silver

Re: ip helper-address not available on C870 router

Jacob

I believe that the issue is that interface fa0 on the 870 router is a switch port not a routed port. I believe that if you configure the ip helper-address on the VLAN interface that it should work (assuming that you have things like routing to send the request through the VPN).

HTH

Rick

New Member

Re: ip helper-address not available on C870 router

Thanks Rick.

I'll try it on the VLAN interface.

Jacob

New Member

Re: ip helper-address not available on C870 router

Works on the VLAN interface.

Thanks.

Hall of Fame Super Silver

Re: ip helper-address not available on C870 router

Jacob

Thanks for posting back to the forum and indicating that it works. I am glad that my answer was helpful.

HTH

Rick

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