> Hi,
>
> vanilla 2.1.82. NFS client and server. I got about 20 of these in
> dmesg's output:
>
> icmp packet outside the tcp window: s:1 4113769529,4113769530,4113769530
> icmp packet outside the tcp window: s:1 2344416893,2344416894,2344416894
>
> Are these harmeless or something is going on here? System seems to be
> working OK.
It probably means that someone tried to 'nuke' one of your connections,
or that something delayed ICMP packets for a long time. In practice they
are harmless.
-A.