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NE40 Operates VRRP Attached PC and It cannot Ping through VRRP Virtual Address because Configuring ARP-Proxy

Publication Date:  2012-07-27 Views:  42 Downloads:  0
Issue Description
NE40 operates VRRP port connected with PC, VRRP at NE40 is normal. PC can ping through the address of the interface, but cannot virtual address of VRRP. Version: VRP3.10-2226
Alarm Information
Null
Handling Process
1. Check NE40 configuration and check whether it opens ping of VRRP virtual address. 
2. At NE40  capture packet with port mirror. Attached PC has sent  virtual MAC of ARP request to VRRP virtual address, but NE40 responds ARP packet that is MAC address of the interface.
3. Check configuration. The interface uses ARP-PROXY. Close ARP-PROXY and the problem is solved.
Root Cause
Enable VRRP interface and open ARP-PROXY. When PC requests MAC of VRRP virtual address to NE40 (the main interface operates ARP-PROXY and the interfsce actually responds ARP request to PC), in fact PC learns MAC of NE40 interface. It cannot communicate with VRRP virtual address and cannot ping through it.
Suggestions
Null

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