DHCP relay IP and gateway IP, possible bad logic?
aland at deployingradius.com
Fri Mar 1 16:12:38 CET 2013
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 220.127.116.11 with gateway
> 18.104.22.168, freeradius tries to send reply to 22.214.171.124 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.
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