On Fri, 27 Jul 2018, Ole Troan wrote:
There's nothing intrinsic in tunnels that require network layer fragmentation. The current IP in IP / GRE etc tunnel implementations do, but in principle we could design tunnel fragmentation/reassembly above the network layer.
This is what I do with OpenVPN for instance. I tell it to application layer fragment at ~1400 bytes, so the resulting packets always are significantly below 1500 bytes. So even as the inside of the tunnel is 9000 MTU clean, it never results in IP fragments to be transported.
-- Mikael Abrahamsson email: swm...@swm.pp.se _______________________________________________ Int-area mailing list Int-area@ietf.org https://www.ietf.org/mailman/listinfo/int-area
