Allow 6in4 tunnel without routed IPv6 prefix as it is valid configuration for point to point connections or for connections with IPv6 prefix on link.
Closes: #170 (closed)
cc: @prohar
Allow 6in4 tunnel without routed IPv6 prefix as it is valid configuration for point to point connections or for connections with IPv6 prefix on link.
Closes: #170 (closed)
cc: @prohar