I was configuring deny icmp any any traffic when I realized it was not in the config.
I verified it with do sh run | i deny icmp command as follows:
R1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. R1(config)# R1(config)#ip access-list extended 100 R1(config-ext-nacl)#deny icmp any any R1(config-ext-nacl)#exit R1(config)#
For unknown reason, there are 3 spaces between deny and icmp and caused do sh run | i deny icmp command to fail.
R1(config)#do sh run | i deny icmp R1(config)#
It turns out the config is actually there with 3 spaces between deny and icmp.
R1(config)#do sh run | i deny access-list 100 deny icmp any any R1(config)#
What was the reason for this behavior?
Is this normal?
