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Forum Discussion
TheOberjarl
Sep 12, 2025Aspirant
Nighthawk RAX30 - DHCP Client Issues
I've noticed something strange whenever my RAX30 sends DHCP DISCOVER messages to my ISP DHCP server to obtain an IP address. The DHCP specification RFC2131 talks about a field in the DHCP DISCOVER pa...
CrimpOn
Sep 12, 2025Guru - Experienced User
The ISP does not respond to any of the DHCP Requests?
TheOberjarl
Sep 13, 2025Aspirant
The ISP DHCP server doesn't seem to respond to DHCP Discover packets unless the SECS field is set to 4 or greater. For other routers, this occurs after one or two retries, but it doesn't work for the RAX30 because the SECS field is stuck at 0. I don't have a good idea what sort of configuration in the DHCP server would cause this behavior, nor why it would be configured that way. This is just what I observed in sending some experimental DHCP packets.