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Return traffic for UDP is getting denied

sambillings459
Level 1
Level 1

Hi Experts,

 

1. Does firewall inspect UDP traffic like TCP, do I have to  allow return traffic for UDP.

2. for e.g: I  have a rule which says traffic that's being sourced from inside  (10.10.10.10 ) going to outside (20.20.20.20) on UDP port 33000 is permitted.

3.But for some reason return traffic is getting denied for UDP.

 

Can anyone please help me with that, do i really need to have the rule for return traffic for UDP.

 

Appreciate your quick response.

 

Thanks

SAM

1 Reply 1

johnd2310
Level 8
Level 8

Hi,

 

 

The firewall should allow return traffic if the initial outbound traffic is allowed out. There could be something else at play with your configuration.

What error are you getting for the return traffic? Is it denied by access-list?

Thanks

John

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