Ageout

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L3 Networker

Ageout

Hi all,

 

I was able to ping external server from firewall and getting reply back from the server without any issues, however in firewall log it's showing aged out.

 

Anybody know the reason behind this?why we are getting agedout after proper response from the external server??

 

Regards,

Kotresha

Kotresha
ACE

Accepted Solutions
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L7 Applicator

This is expected behavior because ICMP is a stateless protocol and does not have FIN or RST flags, so unless it is blocked by the firewall the session end reason will be aged-out

Tom Piens - PANgurus.com
New to PAN-OS or getting ready to take the PCNSE? check out amazon.com/dp/1789956374

View solution in original post


All Replies
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L7 Applicator

Because ping (icmp) and udp protocols don't have session setup (3way handshake) and session turndown (4way handshake) just request and reply so palo will just fade out the session when timeout expires.

Enterprise Architect @ Cloud Carib www.cloudcarib.com
ACE, PCNSE, PCNSI
Highlighted
L3 Networker

You mean to say it's common?? like it'ss be default agedout for ping request?

 

Kotresha
ACE
Highlighted
L7 Applicator

This is expected behavior because ICMP is a stateless protocol and does not have FIN or RST flags, so unless it is blocked by the firewall the session end reason will be aged-out

Tom Piens - PANgurus.com
New to PAN-OS or getting ready to take the PCNSE? check out amazon.com/dp/1789956374

View solution in original post

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