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nflnetwork29
Advisor

ICMP traffic is not being logged

I created a rule to explicitly ALLOW and LOG ICMP "PING" traffic . 

 

Any , Any, Allowed, ICMP , Log

 

 

However I am not seeing this traffic in my logs . What gives?

 

Please Help. 

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7 Replies
Chris_Atkinson
MVP Gold CHKP MVP Gold CHKP
MVP Gold CHKP

Is it accepted by implied rules and are those set to log?

CCSM R77/R80/ELITE
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nflnetwork29
Advisor

i tried that setting as well and it also did not show up in the logs .

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Chris_Atkinson
MVP Gold CHKP MVP Gold CHKP
MVP Gold CHKP

What do you see if using packet mode (sk118592) or fw up_execute to verify the rule matching...

[Expert@MyGW:0]# fw up_execute src=s.s.s.s dst=d.d.d.d ipp=1

CCSM R77/R80/ELITE
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nflnetwork29
Advisor

I see it matching rule 1 - this is the any any rule i created for testing . 

 

admin@172.31.255.1's password:
Last login: Thu Jul 14 17:48:10 2022 from 172.31.255.12
ESSN-CP-01> fw up_execute src=172.31.254.2 ipp=1 dst=172.31.255.100
Rulebase execution ended successfully.
Overall status:
----------------
Active clob mask: 0
Required clob mask: 0
Match status: MATCH
Match action: Accept

Per Layer:
------------
Layer name: ESSN-SHARED-SVCS-MGMT
Layer id: 0
Match status: MATCH
Match action: Accept
Matched rule: 1
Possible rules: 1 11 22 16777215

ESSN-CP-01>

 

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Chris_Atkinson
MVP Gold CHKP MVP Gold CHKP
MVP Gold CHKP

Are there any filters being applied to the log search?

Does the problem persist if you install the policy again?

The bi-directional traffic is visible in a packet capture on the firewall?

CCSM R77/R80/ELITE
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Timothy_Hall
MVP Gold
MVP Gold

If the ping has been running continuously while you created rule 1 and installed policy, it will not match rule 1 until you stop the ping for about 30 seconds and restart it (or just ping a different address).  That is because the old ICMP "connection" still exists in the state table matching whatever rule (probably implied) was there before allowing it.  

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cchacons-tech
Explorer

Still un-resolve ah ?

 

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