Centos 5 and IPv6 (IPv6-in-IPv4 tunneling)

Step 1:

Register Account at Freenet6

Step 2:

Download Gateway6 Client

Freenet6 (6 downloads )

Step 3:

Compile source rpm and install

# rpmbuild --rebuild freenet6-6.0.1-1.src.rpm
# rpm -ivh /path/to/freenet6-6.0.1-1.x86_64.rpm

Step 4:

Configure

# vi /etc/gw6c.conf

edit

userid=user
passwd=pass
server=amsterdam.freenet6.net

Step 5:

Start freenet6 client

# /etc/init.d/freenet6 start

Step 6:

Check tunnel device with encapsulation IPv6-in-IPv4

# ifconfig
sit1      Link encap:IPv6-in-IPv4  
          inet6 addr: fe80::c0a8:7a01/64 Scope:Link
          inet6 addr: fe80::ca7f:611e/64 Scope:Link
          inet6 addr: 2001:5c0:1400:b::2e8d/128 Scope:Global
          inet6 addr: fe80::ca7f:6166/64 Scope:Link
          inet6 addr: fe80::ac11:183/64 Scope:Link
          UP POINTOPOINT RUNNING NOARP  MTU:1280  Metric:1
          RX packets:2948 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3475 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:387849 (378.7 KiB)  TX bytes:2050953 (1.9 MiB)

Step 7:

Test it

# ping6 ipv6.google.com
PING ipv6.google.com(tx-in-x68.google.com) 56 data bytes
64 bytes from tx-in-x68.google.com: icmp_seq=0 ttl=52 time=622 ms
64 bytes from tx-in-x68.google.com: icmp_seq=1 ttl=52 time=618 ms
64 bytes from tx-in-x68.google.com: icmp_seq=2 ttl=52 time=618 ms
64 bytes from tx-in-x68.google.com: icmp_seq=3 ttl=52 time=618 ms

done! 🙂