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man: mptcp: document 'dev IFNAME'

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It was missing, while it is a very important option.

Indeed, without it, the kernel might not pick the right interface to
send packets for additional subflows. Mention that in the man page.

Acked-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Matthieu Baerts (NGI0)
2024-07-27 12:10:30 +02:00
committed by Stephen Hemminger
parent ae32ba8273
commit 484009f46e
1 changed files with 8 additions and 0 deletions
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8
man/man8/ip-mptcp.8
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@@ -135,6 +135,14 @@ established MPTCP sockets will be accepted on the specified port, regardless
the original listener port accepting the first MPTCP subflow and/or
this peer being actually on the client side.
.TP
.IR IFNAME
is the network interface name attached to the endpoint. It is important to
specify this device name linked to the address to make sure the system knows how
to route packets from the specified IP address to the correct network interface.
Without this, it might be required to add IP rules and routes to have the
expected behavior.
.TP
.IR ID
is a unique numeric identifier for the given endpoint