Hello,
Nexus dhcp relay does filter DISCOVER|OFFER broadcasts at layer 2.
Is there a way to get rid of those filters?
Adding dhcp relay addresses is not a viable option, since we don't
even know the addresses of all dhcp servers in all subnets.
Currently we have one 10G port per building and Nexus; vlans do
span several buildings. Thus, l2 filtering is rather pointless.
Moreover, dhcp VACLs seem to interfere with RPF checks as well as
with regular l3 ip ACLs, at least when using multiple routers per vlan
(HSRP). DHCP OFFERs seeminly get dropped when routed across the
"wrong" Nexus (i.e., not the one originally having forwarded the
DISCOVER).
Any helpful ideas?
Regards,
J. Vreemann
