Yoav Nir writes: > Second, as I understand it, those battery-powered devices tend to > use 802.15.4 networks with 127-byte frames. There’s 6LoWPAN to > provide fragmentation support, but that’s similar to using IKE’s > fragmentation for the same issue. Can anything be done at all with > 127-byte frames, that include the (IPv6?) headers, the 8-byte UDP > header, the 20-byte IKEv2 header in addition to all the payload > headers? If we need fragmentation anyway, I don’t know if > compression matters.
802.15.4 networks also have 802.15.9, which will provide its own fragmentation and reassembly for the IKEv2 frames (not including IP or UDP headers, as those are not used, this is raw IKEv2 frames over raw 802.15.4 frames). In those environments the IKEv2 is used to negotiate link keys between two devices. The payloads are already quite compacted, i.e. there will not be several proposals for ciphers, only one, and all extra payloads are omitted anyways. -- [email protected] _______________________________________________ IPsec mailing list [email protected] https://www.ietf.org/mailman/listinfo/ipsec
