[c-nsp] IPv6 domain reply Cisco 6509 IPv4 address

[Charles Sprickman]

On Aug 16, 2012, at 9:41 AM, Chris Lane wrote:

> We do not run IPv6 currently from this site, ipv6 is not enabled on box.
> when i ping google.com i get the following response.
> ping google.com
> Translating "google.com"...domain server (64.17.248.2) [OK]
> 
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 2001:4860:4001:800::100E, timeout is 2
> seconds:
> 
> % No valid source address for destination
> 
> Rev is:
> s72033-advipservicesk9_wan-mz.122-33.SXH7.bin
> and also for further IPV6 analysis:
> sh ipv6 int
> LI-Null0 is up, line protocol is up
>  IPv6 is enabled, link-local address is FE80::218:74FF:FE16:D180
>  No global unicast address is configured
>  Joined group address(es):
>  MTU is 1500 bytes
>  ICMP error messages limited to one every 100 milliseconds
>  ICMP redirects are enabled
>  ND DAD is not supported
>  ND reachable time is 30000 milliseconds
> 
> Ran this by a friend yesterday who also found this strange behavior and at
> quick glance couldn't find any bugs related to rev.
> 
> 
> Just wondering if anyone else sees this behavior?

I saw it after enabling a non-routable IPv6 address on a vlan subinterface to do some testing...

12.4(24)T6.

Charles

> Thanks
> 
> -- 
> //CL
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