Re: DHCP relay IP and gateway IP, possible bad logic?

Igor Smitran wrote:

In case when freeradius is talking to a DHCP relay it should *always* send answears to a initiating relay IP. But, it doesn't.

Can you supply the debug output?

Cisco CMTS is using 10.10.10.1 as his giaddr for all requests made by CM's, MTA's and CPE's. All replies should go to 10.10.10.1.

Usually... there is are some weird requirements on how DHCP operates.

But, currently, if CPE gets public IP 200.200.200.2 with gateway 200.200.200.1, freeradius tries to send reply to 200.200.200.1 instead of 10.10.10.1.

The DHCP code ignores the *routing* gateway address. It instead uses the DHCP giaddr field to send responses. Again, debug output would help here. Alan DeKok.