-site.c: the site_incoming() routing could be implemented much more
-cleanly using a table. There's still quite a lot of redundancy in this
-file. Abandon key exchanges when a bad packet is received. Modify
-protocol to include version fields, as described in the NOTES file.
+site.c: Abandon key exchanges when a bad packet is received. Modify
+protocol to include version fields, as described in the NOTES
+file. Implement keepalive mode. Make policy about when to initiate key
+exchanges more configurable (how many NAKs / bad reverse-transforms
+does it take to prompt a key exchange?)
+
+slip.c: restart userv-ipif to cope with soft routes? Restart it if it
+fails in use?