Re: How to identify different ip tunnels

On Wed, Jan 22, 2014 at 11:33 PM, zhuyj [off-list ref] wrote:

Here are the result that we have got:

Actual Tunnel type ifi->ifi_type
4IN4 768
GRE4 778
6IN4/6TO4/ISATAP 776
4IN6/6IN6/IPIN6 769

So, we can NOT distinguish the actual tunnel type via ifi_type attribute
except the GRE4 and 4IN4 tunnel. However we need the actual type. That is
our question.

Try to search IFLA_IPTUN_PROTO. They are distinguished by protocol.