Hi

My server is Bordermanager 3.6 + SP2a on Netware 6.0 + SP2 + TCP605o +

NW6NSS2b.
Running NAT 6.00.5.15 & also testet with NAT 6.00.10.20 (from bm37sp2
beta).

Problem:
Sometimes POP3 to different mail servers stops for several hours and
suddently it starts working
again without changes to the network.

From Outlook Express:
Connection to server could not be established.
Protokol: POP3, Port: 110, Secure (SSL): No, Socket-error: 10060,
Error:
0x800CCC0E

I suspected that it could be a NAT problem since unloading the filters
do
not resolve the problem - only a restart of the server make it work
instantly.

Here is log files from filter logging and NAT:

IPPKTLOG:

03/19/2003,14:27:38
+0100,10.1.1.106,193.89.137.228,TCP,1712,110,SYN,1 ,1,2,-,-,OUTBOUND
03/19/2003,14:27:38 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,SYN
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:38
+0100,10.1.1.106,193.89.137.228,TCP,1712,110,ACK,1 ,1,2,-,-,OUTBOUND
03/19/2003,14:27:38 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:38 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,PSH
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:38 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:38 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,PSH
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:38 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:38 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,PSH
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:38 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:38 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,PSH
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:39 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:39 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,PSH
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:39 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:39 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,PSH
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:39 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:39 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,PSH
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:39 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,PSH
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:39 +0100,10.1.1.106,193.89.137.228,TCP,1712,110,FIN
ACK,1,1,2,-,-,OUTBOUND
03/19/2003,14:27:39 +0100,193.89.137.228,10.1.1.106,TCP,110,1712,FIN
ACK,1,2,1,-,-,INBOUND
03/19/2003,14:27:39
+0100,10.1.1.106,193.89.137.228,TCP,1712,110,ACK,1 ,1,2,-,-,OUTBOUND
03/19/2003,14:27:39
+0100,193.89.137.228,10.1.1.106,TCP,110,1712,ACK,1 ,2,1,-,-,INBOUND
03/19/2003,14:32:39
+0100,10.1.1.106,193.89.137.228,TCP,1721,110,SYN,1 ,1,2,-,-,OUTBOUND
03/19/2003,14:32:42
+0100,10.1.1.106,193.89.137.228,TCP,1721,110,SYN,1 ,1,2,-,-,OUTBOUND
03/19/2003,14:32:48
+0100,10.1.1.106,193.89.137.228,TCP,1721,110,SYN,1 ,1,2,-,-,OUTBOUND

Worked fine at 14:27. Problem started at 14:32. At 14:59 it worked
again.

NAT Table:

130. 10.1.1.106 | 1721 | 57877 | 193.89.137.228 |
110|
10| 70
131. 10.1.1.106 | 1706 | 57848 | 192.233.80.227 |
119|
10| 82
132. 10.1.1.106 | 1694 | 57801 | 193.89.137.228 |
110|
10|2225
133. 10.1.1.106 | 1692 | 57790 | 193.89.137.228 |
110|
10|2550
134. 10.1.1.106 | 1677 | 57778 | 193.89.137.228 |
110|
10|2875
135. 10.1.1.106 | 1656 | 57680 | 193.89.137.228 |
110|
10|4567
136. 10.1.1.106 | 1587 | 57585 | 193.89.137.228 |
110|
10|5502
137. 10.1.1.106 | 1468 | 57530 | 193.89.137.228 |
110|
10|6436
138. 10.1.1.106 | 1465 | 57501 | 193.89.137.228 |
110|
10|6760
139. 10.1.1.106 | 1404 | 57363 | 193.89.137.228 |
110|
10|8620
140. 10.1.1.106 | 1259 | 56714 | 216.52.17.116 |
80|
10|17035
141. 10.1.1.106 | 1258 | 56711 | 216.52.17.116 |
80|
10|17044
142. 10.1.1.106 | 1255 | 56708 | 216.52.17.116 |
80|
10|17066
143. 10.1.1.106 | 1251 | 56705 | 216.52.17.116 |
80|
10|17081
144. 10.1.1.106 | 1084 | 56575 | 216.52.17.116 |
80|
10|18436
145. 10.1.1.106 | 1083 | 56574 | 216.52.17.116 |
80|
10|18451
146. 10.1.1.106 | 1322 | 56421 | 193.89.137.228 |
110|
10|20482

I have this problem at 2 different locations with same
Netware/Bordermanager
versions and different POP3 servers from various ISP's.

Michael Bang