Usage:
# /sbin/ip -6 tunnel show [<device>]
Example:
# /sbin/ip -6 tunnel show sit0: ipv6/ip remote any local any ttl 64 nopmtudisc sit1: ipv6/ip remote 195.226.187.50 local any ttl 64
Usage:
# /sbin/route -A inet6
Example (output is filtered to display only tunnels through virtual interface sit0):
# /sbin/route -A inet6 | grep "\Wsit0\W*$" ::/96 :: U 256 2 0 sit0 2002::/16 :: UA 256 0 0 sit0 2000::/3 ::193.113.58.75 UG 1 0 0 sit0 fe80::/10 :: UA 256 0 0 sit0 ff00::/8 :: UA 256 0 0 sit0