Troubleshooting Tips

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If you are facing strange behavior, in an advanced/illogic scenario, evaluate/review the following items in this order:

1. Policy
2. NAT (correct NAT mode? Does it require manual proxy arp?)
3. Routing
4. Anti-spoofing (even from return packet, check logs in opposite direction)
5. VPN Encryption domain (for your and remote peer)
6. IPS (Use command: ips off)
7. Connection Limit (fw ctl pstat)
8. Disable SecureXL (Use command: fwaccel off)
9. Test in the other cluster member (Use command: clusterXL_admin down –p)
10. Issue a cpstop/cpstart or reboot
11. Consider installing the latest Jumbo hotfix accumulator or Recommended Hotfixes (per sk106162 and sk106389)
12. Did I forget something?!
13. That’s probably a bug, raise a TAC

Confirm the reason of your packet being dropped using:

 fw ctl zdebug + drop | grep 'x.x.x.x\|y.y.y.y'

If Tracker is stuck with existing session (no new logs) and behavior is from previous policy push, clear connection's table:

 fw tab -t connections -x