"They connected their end to an ASA and were having some difficulties with connectivity, where in our testing
we did not have any problem."
where is the ASA connected?
Can you provide a small network diagram for this? ICMP redirects in your case would happen when your host device is trying to reach something out there which has a best path via the router and not the switch SVI .i.e meaning. in your case the testing maching or the host has a default GW of the SVI on the switch but truely it should have been the router . Its like the swtich is telling your host device that do not use me but the use the router to reach the destination. Does this help?
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...