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Cisco Bug: CSCup89837 - [Enh] NX-OS: Knob to disable source subnet check for proxy arp

Last Modified

Sep 17, 2019

Products (1)

  • Cisco MDS 9000 NX-OS and SAN-OS Software

Known Affected Releases

6.2(8a)

Description (partial)

Symptom:
More recent NX-OS releases have a source IP subnet check in the proxy ARP operation whereby the Nexus switch does not perform the proxy-ARP if the source address of the ARP request is not directly connected.

Conditions:
Nexus switch configured for proxy-ARP. The source of received ARP request packet is not directly connected subnet of the ingress L3 interface on Nexus.
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