Dear community, I have a problem with my openbsd nfsd server. My client (ubuntu) after a while, sent a packet with flag F which to do not receive a correct response to close the connection or something like that because it get stuck with FIN_WAIT_2 states. Here is the packet sent by client to server :
12:16:45.022393 192.168.100.2.998 > 192.168.100.1.2049: F 141:141(0) ack 117 win 1284 <nop,nop,timestamp 3929122361 2338823414> (DF) Then the traffic consists in these lines (indefinitely): 12:16:45.022470 192.168.100.1.2049 > 192.168.100.2.998: . ack 142 win 1030 <nop,nop,timestamp 2338823422 3929122361> 12:17:45.187125 192.168.100.2.998 > 192.168.100.1.2049: . ack 117 win 1284 <nop,nop,timestamp 3929182521 2338823422> (DF) 12:17:45.187153 192.168.100.1.2049 > 192.168.100.2.998: . ack 142 win 1030 <nop,nop,timestamp 2338823542 3929182521> 12:18:45.849519 192.168.100.2.998 > 192.168.100.1.2049: . ack 117 win 1284 <nop,nop,timestamp 3929243193 2338823542> (DF) 12:18:45.849548 192.168.100.1.2049 > 192.168.100.2.998: . ack 142 win 1030 <nop,nop,timestamp 2338823664 3929243193> 12:19:47.294335 192.168.100.2.998 > 192.168.100.1.2049: . ack 117 win 1284 <nop,nop,timestamp 3929304637 2338823664> (DF) 12:19:47.294359 192.168.100.1.2049 > 192.168.100.2.998: . ack 142 win 1030 <nop,nop,timestamp 2338823786 3929304637> ... Inspecting the states of the connection I have, on the client : client$ netstat -an | grep 2049 tcp 0 0 192.168.100.2:998 192.168.100.1:2049 FIN_WAIT2 and on the server server$ doas pfctl -s states | grep 2049 all tcp 192.168.100.1:2049 <- 192.168.100.2:998 ESTABLISHED:FIN_WAIT_2 Somebody has an hint to solve this problem ? Thanks for your help. Airwan.
