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

[Chris Lane]

to follow up, once i added v6 to the router and advertised to my SP,
pinging google.com resolved, but Only via IPv6.
odd this Particular router only listen and responds to google via v6.. Did
they change something?

no other site does this that i can see.

On Thu, Aug 16, 2012 at 3:12 PM, Charles Sprickman <spork at bway.net> wrote:

> 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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>
>


-- 
//CL