Gunnar Beutner aff4d22de9 Kernel: Set MSS option for outbound TCP SYN packets ...

When the MSS option header is missing the default maximum segment
size is 536 which results in lots of very small TCP packets that
NetworkTask has to handle.

This adds the MSS option header to outbound TCP SYN packets and
sets it to an appropriate value depending on the interface's MTU.

Note that we do not currently do path MTU discovery so this could
cause problems when hops don't fragment packets properly.

2021-05-12 13:47:07 +02:00

2.8 KiB

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