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Cisco Bug: CSCvi53910 - APIC inband uses default GW mac for all TCP traffic within subnet

Last Modified

Apr 09, 2018

Products (1)

  • Cisco Application Policy Infrastructure Controller (APIC)

Known Affected Releases

3.1(1i)

Description (partial)

Symptom:
external device within same subnet of inb-mgmt EPG, for TCP traffic APIC uses gateway mac as dest mac.

usually it is not an issue, if the external device is a firewall, then it will drop traffic.

Conditions:
for ICMP traffic we have seen the APIC sends traffic to correct dest mac which points in arp table.

but for TCP traffic it sends to GW mac.
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