Tuesday, May 18, 2021

DHCP Snooping / ARP inspection question, cisco network.

Is there any reason why snooping and DAI would not work right with interfaces connected to servers? Or something special I need to do? We have both setup on our access switches, and we are going to put it on our core switches that our servers connect to. Now normally, we would only put this on our user vlans, but the networks we are about to add this to are flat networks, meaning servers and clients are on the same vlan.

We tried this in the past and a lot of the servers were causing ports on the switch to go err-disabled from DAI failing, so we ended up just taking it off. Is there a way to avoid this, or is there really no reason this should be happening?



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