IPv6 Ping message "C"

[gargolek99]

Hello,

What is it mean "C" in return icmp message?

R2#ping 192.168.1.201 r 100

Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 192.168.1.201, timeout is 2 seconds:
!.!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!
!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 96 percent (96/100), round-trip min/avg/max = 52/86/120 ms
R2#ping ipv6 2001:DB8:0:200::1 r 100

Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 2001:DB8:0:200::1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!C!!!!!!!!!!!!!!!!!!!!!!!!C!!!!!!!!!!!!!!!!
!!!!!!!!C!!!!!!!!!!!!!!!!!!!!!
Success rate is 97 percent (97/100), round-trip min/avg/max = 40/77/104 ms
R2#

Ping to the same router one ping with ipv4 and other ipv6, what is C stand for...cannot find anything about this...

Regards, 

[Marcin Latosiewicz · Accepted solution]

This could be due to https://tools.cisco.com/bugsearch/bug/CSCtn36227/?reffering_site=dumpcr I think we're also should file a doc bug against "C" not being documented as response in: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/command/ipv6-cr-book/ipv6-m1.html#wp4311327250 Can you please raise a TAC case for this?

[gargolek99]

Hello,

Marcin thank you for your reponce unfortunalty this is out of support threfore TAC case can not be opened. I am running version:

Cisco IOS Software, 7200 Software (C7200-ADVENTERPRISEK9-M), Version 15.0(1)M10

Regards,

[Marcin Latosiewicz]

I've raised internal documentation bug against "C" being missing.

I don't think you will be able to see it but it's CSCun78997.

On your side you can try 15.1(4)M4+ and see what that changes.