DHCP option 82 support on Cisco Router

Hi Guys,

Just wanted to ask a simple question on DHCP snooping and DHCP option 82. If
I enable insertion of DHCP option 82 in switch then what should be the right
configs on router to support option 82.

I get below messages on DHCP server (Cisco Router) when switch is inserting
option 82.

*Jul 30 06:01:25.275: DHCPD: relay information option exists, but giaddr is
zero.
*Jul 30 06:01:29.275: DHCPD: inconsistent relay information.
*Jul 30 06:01:29.279: DHCPD: relay information option exists, but giaddr is
zero.

Also what is the significance of giaddr?

Thanks,
Ajay

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Received on Thu Jul 30 2009 - 11:35:59 ART