On 01/28/2014 03:32 PM, zhuyj wrote:
On 01/27/2014 08:59 PM, Nicolas Dichtel wrote:
Le 27/01/2014 11:39, zhuyj a écrit :
Hi, Maintainers
In our scene, we will create the 6in4/6to4 tunnel firstly and need
to check the
tunnel type, secondly, we will configure the ip address on it. So,
Could we have
any way to get the actual tunnel for 6in4 and 6to4 from current
linux version?
Both 6in4 and 6to4 have the same protocol “IPPROTO_IPV6” in Linux
kernel. The
only difference is the ip address on the tunnel. Can we distinguish
them in
Linux kernel?
Just check the prefix, like it is done in check_6rd().
Regards,
Nicolas
Hi, Nicolas
Thanks for your reply. Maybe I can configure 6to4 tunnel by the
following commands:
ip tunnel add tun6to4 mode sit remote any local 1.202.252.122 ttl 64
ip link set dev tun6to4 up
ip -6 addr add 2002:01ca:fc7a::0012:0225:2122/128 dev tun6to4
ip -6 route add 2000::/3 via ::192.88.99.1 dev tun6to4 metric 1
But the kernel can not identify the tunnel is 6to4 tunnel or 6in4 tunnel
immediately. After the packets travel through this tunnel, the kernel
can identify the type of the tunnel by check_6rd.
Is it right?
Best Regards!
Zhu Yanjun
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