[c-nsp] ping ipv6 question

[Bernhard Schmidt]

Hank Nussbacher <hank at efes.iucc.ac.il> wrote:

> Can someone clue me in why the Cisco ipv6 ping doesn't have the option to 
> provide a source IP/interface:

What IOS version do you have? It is available at least on 12.2(25)S:

BACK1-C7206-OTN-SATIP#ping ipv6               
Target IPv6 address: 2001:1b10::12
Repeat count [5]: 
Datagram size [100]: 
Timeout in seconds [2]: 
Extended commands? [no]: y
Source address or interface: Loopback10
UDP protocol? [no]: 
Verbose? [no]: 
Precedence [0]: 
DSCP [0]: 
Include hop by hop option? [no]: 
Include destination option? [no]: 
Sweep range of sizes? [no]: 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1B10::12, timeout is 2 seconds:
Packet sent with a source address of 2001:1B10::11
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/4 ms

or

BACK1-C7206-OTN-SATIP#ping ipv6 2001:1b10::12 source Loopback10

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1B10::12, timeout is 2 seconds:
Packet sent with a source address of 2001:1B10::11
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/4 ms

Regards,
Bernhard