ospf6d: add p2p interface support

Signed-off-by: Dinesh G Dutt <ddutt at cumulusnetworks.com>
Signed-off-by: Ayan Banerjee <ayabaner at gmail.com>
Reviewed-by: Scott Feldman <sfeldma at cumulusnetworks.com>
Reviewed-by: James Li <jli at cumulusnetworks.com>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/ospf6d/ospf6_interface.h b/ospf6d/ospf6_interface.h
index d80b073..808f096 100644
--- a/ospf6d/ospf6_interface.h
+++ b/ospf6d/ospf6_interface.h
@@ -56,6 +56,9 @@
   /* I/F transmission delay */
   u_int32_t transdelay;
 
+  /* Network Type */
+  u_char type;
+
   /* Router Priority */
   u_char priority;