ping between server is not working

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L3 Networker

ping between server is not working

Hi,

 

I have created a rule to allow ping between to and fro from servers below is the scenario

 

source zone: A, B, C

Source IP: 1 , 2 , 3

Destination zone: A, B, C

Destination IP: 1, 2, 3

Application: Ping

Service: application-default

action: Allow

 

But the rule is not triggering, the traffic is denied due to dafault deny...

can anyboady tell me the whats the  reason for this?? and how i can resolve it?

 

Thanks in advance

 

Kotresha
ACE
L3 Networker

Re: ping between serve is not working

hi,

 

Reason is that the traffic is not hitting your policy, instead hits your default deny rule.

 

Community Team Member

Re: ping between serve is not working

As the policy is Top-down, it will match on the rules in order. 

You have created the rule to allow Ping, but the question is where is this rule in the policy?

 

Stay Secure,
Joe
End of line
L3 Networker

Re: ping between serve is not working

the rule is on the top of default deny but still it's not working.

Kotresha
ACE
Community Team Member

Re: ping between serve is not working

Can you enable logging of your default deny rule (this is not enabled by default).  

Can you confirm the zones / IP's when you check the actual drop log ?

 

Cheers,

-Kim.

L3 Networker

Re: ping between serve is not working

Yes we have enabled it and i can see it the Zones and ips are correct but still it's not working

Kotresha
ACE
L7 Applicator

Re: ping between serve is not working

are you seeing ICMP ping being dropped or UDP?

 

the AppID application 'ping' is for ICMP echo requests only. if your host is sending out UDP pings, they will not match

L3 Networker

Re: ping between serve is not working

I can see ICMP IP protocol in the logs.

Kotresha
ACE
L3 Networker

Re: ping between serve is not working

Hi,

 

Just for test add in the policy application field "ping" and "ICMP" apps and try.

 

 

Highlighted
L3 Networker

Re: ping between serve is not working

Is the server is located behind the firewall and you are trying to ping from outside ? ( nat and security policy needs to be checked )

If that is not the case then it may also happen the new sessions are getting matched with the old discard sessions.

 

Most likely as me peers mentioned above either the deny policy is above the allow policy or there the zones and the ips needs to be cross checked once again

 

Tarang

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