> A trick used in some places, such as ND, is to require the receiver to check > that the hop limit is equal to 255. This ensures that the packet has not > been forwarded by any router (obviously the sender also has to send it with > a hop limit of 255).
Yeah, the so-called "TTL hack". I considered that for Babel back when it was being designed, then decided that it is useful in an IPv6 world. Perhaps I was wrong, but at this stage it would break interoperability with all existing Babel routers, which is not acceptable. > Historically, a popular brand of router would forward packets with LL source. Let's hope none of these historical routers will be used in a Homenet environment. -- Juliusz _______________________________________________ homenet mailing list homenet@ietf.org https://www.ietf.org/mailman/listinfo/homenet
