Where to buy Internet IP addresses

Ricky Beam jfbeam at gmail.com
Mon May 4 18:23:13 CDT 2009


On Mon, 04 May 2009 18:50:04 -0400, Leo Bicknell <bicknell at ufp.org> wrote:
> My 12.0(S), 12.4, and IOS-XR boxes are operating quite well with
> /112's and /127's on GigE interfaces to each other, on GSR's, 7300's,
> and 7200's.  We also use /128's on loopbacks.

Must have been old (very old?) code when I first tried this.  12.4(15)T  
doesn't seem to care.

But it still doesn't allow transitional addresses:
gw(config-if)#ipv6 address 0::101:101/96
%FastEthernet0/0: Error: ::1.1.1.1/96 is invalid

gw(config-if)#ipv6 address 0::101:101/128
%FastEthernet0/0: Error: ::1.1.1.1/128 is invalid

If I cannot set an IPv4 address like that, the tunnel won't work.  DHCPv6  
requests end up outside the tunnel. (it's been many months since I messed  
with it, so the interface isn't in the config anymore, but the IPSEC setup  
still is :-))  I can send you the packet dumps if you want to scratch your  
head over it.




More information about the NANOG mailing list