pm: note about Busybox's ip command

It doesn't support MPTCP yet. Because it is installed in some embedded environments by default, it sounds good to mention that the "full" version is needed, e.g. ip-full in OpenWRT. Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
multipath-tcp · Dec 28, 2024 · d3196e5 · d3196e5
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@@ -59,6 +59,9 @@ NetworkManager and `mptcpd` conflicting to configure the MPTCP endpoints.
 
 This can be done using the `ip mptcp` command. Please check the manual for more
 details: [`man ip-mptcp`](https://man7.org/linux/man-pages/man8/ip-mptcp.8.html).
+Note that Busybox's `ip` command doesn't support MPTCP yet. You need the "full"
+version from the [IPRoute2](https://wiki.linuxfoundation.org/networking/iproute2)
+project.
 
 #### Endpoints