URL problems

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URL problems

L4 Transporter

hello.although the rule is set to allow any but in request to some web-sites  we can see such a problem.there is incomplete in application coloumn.i understand that it cannot pass  the three-way handshake.but why only with any sites?Screenshot_1.png

5 REPLIES 5

Cyber Elite
Cyber Elite

is your source NAT being applied properly? have you already taken a packetcapture to see what is being sent out and if you are receiving anything at all?

 

on the firewall you can use this guide to set up packetcaptures. if no packets return you may need to go to the upstream device to see what happens there: Getting Started: Packet Capture

Tom Piens
PANgurus - Strata specialist; config reviews, policy optimization

it only happens with some of the web sites.not at all

Community Team Member

Hi @Radmin_85,

 

HTTPS sites only ?

Any specific drops seen in global counters ?

 

Cheers,

-Kiwi.

LIVEcommunity team member, CISSP
Cheers,
Kiwi
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yes 

https://actuarial-academy.com/

for example this site

Hi @Radmin_85

can you provide more information (packetcapture, global counters,...)

all we can determine from your screenshot is that at least a SYN packet was sent out and that the server did not send something back at an early stage of the session, but it either did not reply to the handshake or did not reply to the client hello, more information will help determine what could be the root cause

Tom Piens
PANgurus - Strata specialist; config reviews, policy optimization
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