Hello,
I am troubleshooting an issue about connectivity to a couple boxes.
We have two Nexus switches. From one I can ping the 2 boxes but their MAC address is not shown when I issue "show ip arp [IP_address]".
On the other switch, I see the MAC addresses but cannot ping.
On the switch that ping works, the SVI for the 2 boxes is administratively down (currently investigating the reason why it was disabled). Then the echo requests are being forwarded thru the switch default gateway? Assuming so and to confirm I did a extended ping to one of the boxes, source IP address was the switch default gateway which happens to be a HSRP Virtual Address. Ping succeded, actually it worked when pinging with another ViP as source
On the switch where I can see the servers MAC addresses, I tried the same extended ping (usings the respective default gateway and another ViP), an error message: invalid source address, was returned.
Why this different behavour on 2 peer devices?
Thanks in advance!
SwitchA# show run | i gateway
peer-gateway
ip default-gateway 10.42.63.131
ip default-gateway 10.42.63.131
SwitchB# show run | i gateway
peer-gateway
ip default-gateway 10.42.63.131
ip default-gateway 10.42.63.131
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Ping from Switch A
Extended commands [no] : yes
Source address or interface : 10.42.63.131
Sending 5, 56-bytes ICMP Echos to 10.42.28.41
Timeout is 2 seconds, data pattern is 0xABCD
64 bytes from 10.42.28.41: icmp_seq=0 ttl=127 time=15.704 ms
64 bytes from 10.42.28.41: icmp_seq=1 ttl=127 time=1.288 ms
Ping from Switch B
Target IP address or Hostname: 10.42.28.41
Extended commands [no] : yes
Source address or interface : 10.42.63.131
% Invalid source address
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