Quick Reference Guide

ProSafe VPN Firewall 200 FVX538 Reference Manual
System Logs and Error Messages C-13
v1.0, March 2009
Routing Logs
This section is used to configure the logging options for each network segment like LAN-WAN for
debugging purposes. This may generate a significant volume of log messages.
LAN to WAN Logs
Message 2007 Oct 1 00:44:17 [FVX538] [kernel]
[INVALID][OUT_OF_WINDOW][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Packet not in TCP window
Recommended Action
1. Invalid packets are dropped.
2. Use this command to enable dropping and logging of the invalid packets:
fw/rules/attackChecks/configure dropInvalid 1
To allow invalid packet and disable logging:
fw/rules/attackChecks/configure dropInvalid 0
Message 2007 Oct 1 00:44:17 [FVX538] [kernel]
[INVALID][ERR_HELPER_ROUTINE][DROP] SRC=192.168.20.10
DST=192.168.20.2 PROTO=TCP SPT=23 DPT=54899
Explanation Error returned from helper routine
Recommended Action
1. Invalid packets are dropped.
2. Use this command to enable dropping and logging of the invalid packets:
fw/rules/attackChecks/configure dropInvalid 1
To allow invalid packet and disable logging:
fw/rules/attackChecks/configure dropInvalid 0
Table C-19. Routing Logs: LAN to WAN
Message Nov 29 09:19:43 [FVX538] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN
SRC=192.168.10.10 DST=72.14.207.99 PROTO=ICMP TYPE=8 CODE=0
Explanation • This packet from LAN to WAN has been allowed by the firewall.
• For other parameters, refer to Table C-1.
Recommended Action None
Table C-18. System Logs: Invalid Packets (continued)