DHCP RFC5107 Support

Darren Ward (darrward) darrward at cisco.com
Fri Jun 5 01:25:56 UTC 2015


Hi All

Trying to get ISC to honor an RFC5107 compliance relay servers setting of the override-server-id suboption

When I use this to Cisco Network Registrar server the server-id field is correctly set to the relay but to the ISC server the server-id field is still being set to the ISC DHCP Server Address

This causes subsequent RENEW/REFRESH to try and go direct from client to server and not via the relay which is breaking session management as the state gets out of sync

Please advise how to configure ISC to be RFC 5107 compliant

Regards
Darren

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