Longer prefixes

[Kurt Erik Lindqvist <kurtis@kurtis.pp.se>]

As there was some discussions in Atlanta on wether longer prefixes is 
actually in use today. This is just the first page of sh ipv6 route on 
one of my home routers :

IPv6 Routing Table - 438 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
Timers: Uptime/Expires

B   2001:200:126::/48 [20/6]
     via FE80::C15E:FA3A, Tunnel10, 02:22:30/never
B   2001:200:202::/48 [20/6]
     via FE80::C15E:FA3A, Tunnel10, 02:22:56/never
B   2001:200:203::/48 [20/6]
     via FE80::C15E:FA3A, Tunnel10, 4d01h/never
B   2001:200:200::/40 [20/5]
     via 2001:670:87:3001::, Tunnel10, 4d01h/never
B   2001:200:340::/48 [20/6]
     via FE80::C15E:FA3A, Tunnel10, 4d01h/never
B   2001:200:300::/40 [20/6]
     via FE80::C15E:FA3A, Tunnel10, 4d01h/never
B   2001:200:500::/40 [20/3]
     via FE80::C15E:FA3A, Tunnel10, 5d17h/never
B   2001:200::/35 [20/3]
     via 2001:670:87:3001::, Tunnel10, 3d03h/never
B   2001:208::/32 [20/5]
     via 2001:670:87:3001::, Tunnel10, 3d03h/never
B   2001:218::/32 [20/3]
     via 2001:670:87:3001::, Tunnel10, 1d06h/never
B   2001:220::/35 [20/4]
     via FE80::82F4:B4, Tunnel30, 02:51:25/never
B   2001:228:C00::/40 [20/5]
     via 2001:670:87:3001::, Tunnel10, 4d01h/never


It appears as if there are number of prefix lengths being in use.

Best regards,

- kurtis -