Routing error?

smoochict · January 28, 2011, 03:39:55 AM

Hello,

I'm routing a /96 prefix from my /48 which i got form HE

setsid ./tb_userspace 6in4a clientipv4 serveripv4 sit > /dev/null
ifconfig 6in4a up
ifconfig 6in4a inet6 add a924:0470:be0a:0000:0000:0004::/96
ifconfig 6in4a mtu 1480
route -A inet6 add ::/0 dev 6in4a

using http://code.google.com/p/tb-tun/wiki/HOWTO

And on the client ipv4

setsid ./tb_userspace tb serveripv4ip clientipv4ip sit > /dev/null
ifconfig tb up
ifconfig tb inet6 add a924:0470:be0a:0000:0000:0004::2/64
ifconfig tb mtu 1480
route -A inet6 add ::/0 dev tb

But its not working when i ping6 a924:0470:be0a:0000:0000:0004::2 from anywhere other than the clientipv4 vps
??

cholzhauer · January 28, 2011, 05:01:33 AM

Why the /96? a /64 is the smallest prefix and many OS's won't use anything smaller

smoochict · January 28, 2011, 05:13:08 AM

I had it working but i forgot the setting i used to get it to work (/96 should work anyway)

on the client i get network is unreachable, no route

cholzhauer · January 28, 2011, 05:17:25 AM

well then let's see the routing tables

smoochict · January 28, 2011, 05:25:52 AM

on the client:

root@server3:~# ip -6 route
:: dev tb metric 1 expires 21334362sec mtu 1480 advmss 1420 hoplimit 0
2001:470:b913::3:0:0 dev tb metric 1 expires 21332504sec mtu 1480 advmss 1420 hoplimit 0
2000::/3 dev tb metric 1024 expires 21332983sec mtu 1480 advmss 1420 hoplimit 0
fe80::/64 dev tb metric 256 expires 21330919sec mtu 1480 advmss 1420 hoplimit 0

on the server (the one with the HE tunnel)

root@dns1:~/tun# ip -6 route
2001:470:1f0f:935::/64 dev tb metric 256 expires 21334231sec mtu 1500 advmss 1420 hoplimit 0
2001:470:b913::3:0:0/96 dev 6in4a metric 256 expires 21334299sec mtu 1480 advmss 1420 hoplimit 0
fe80::/64 dev tb metric 256 expires 21334145sec mtu 1500 advmss 1420 hoplimit 0
fe80::/64 dev 6in4a metric 256 expires 21334299sec mtu 1480 advmss 1420 hoplimit 0
default dev tb metric 1 expires 21334273sec mtu 1500 advmss 1420 hoplimit 0
default dev 6in4a metric 1 expires 21334315sec mtu 1480 advmss 1420 hoplimit 0

cholzhauer · January 28, 2011, 05:27:28 AM

Quote
But its not working when i ping6 a924:0470:be0a:0000:0000:0004::2 from anywhere other than the clientipv4 vps

Are you sure you didn't typo that? I don't see anything even close to that in your routing tables

smoochict · January 28, 2011, 05:31:49 AM

Sorry about that

(Just a note, i have no problems pinging from the server with HE)

setsid ./tb_userspace 6in4a clientipv4 serveripv4 sit > /dev/null
ifconfig 6in4a up
ifconfig 6in4a inet6 add 2001:470:b913:0000:0000:0003::/96
ifconfig 6in4a mtu 1480
route -A inet6 add ::/0 dev 6in4a

Thats what i'm doing on the server to create the tunnel.

And on the client:
setsid ./tb_userspace tb serveripv4 clientipv4 sit > /dev/null
ifconfig tb up
ifconfig tb inet6 add 2001:470:b913:0000:0000:0003::2/96
ifconfig tb mtu 1480
route -A inet6 add ::0 dev tb

smoochict · January 28, 2011, 05:35:26 AM

typing:

root@server3:~# netstat -6 -nr
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
::/128 :: UH 1 0 0 tb
2001:470:b913::3:0:0/128 :: UH 1 0 0 tb
2001:470:b913::3:0:0/96 :: U 1 0 0 tb
2000::/3 :: U 1024 0 0 tb
fe80::/64 :: U 256 0 0 tb
::/0 :: U 1 0 0 tb
::/0 :: !n -1 1 23761 lo
::1/128 :: Un 0 1 7 lo
2001:470:b913::3:0:0/128 :: Un 0 1 192 lo
2001:470:b913::3:0:1/128 :: Un 0 1 2 lo
2001:470:b913::3:0:2/128 :: Un 0 1 138 lo
2001:470:b913:5::/128 :: Un 0 1 0 lo
2001:470:b913:5::2/128 :: Un 0 1 21 lo
ff00::/8 :: U 256 0 0 tb
::/0 :: !n -1 1 23761 lo

smoochict · January 28, 2011, 06:22:21 PM

can anyone help?

cholzhauer · January 28, 2011, 06:34:06 PM

So I guess I still don't understand. You said your tunnel is working, but you can't ping a certain host? What host are you trying to ping?

smoochict · January 28, 2011, 08:19:42 PM

I can ping any ipv6 host/ip on the server which is allocating ipv6 /96's which i got the /48 on that from HE.

But on the servers i'm allocating them to, they can't ping any ipv6 host or even access any ipv6 site etc

smoochict · January 28, 2011, 10:16:29 PM

:( can anyone please help?

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Routing error?