Posted on April 13, 2020 9:01 pm
 |  Asked by Tom Mendelboim
 |  685 views
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I wanted to see if there is a way to allow egress traffic but also allow the return of that specific traffic. For example, if I allow port 25 outbound, I want to allow for the return traffic to communicate back with port 25. In the Cisco world they used the “established” option in the ACL but not sure if Arista works the same.

Any suggestions?

Thank you!

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Posted by Manoaj
Answered on April 15, 2020 3:37 am

Hi Tom,

With the below-mentioned ACL entry filtering the incoming traffic will have the effect you are describing.

router#configure terminal
router(config)#ip access-list test
router(config-acl-test)#permit tcp SOURCE_ADDR [SOURCE_PORTDEST_ADDR [DEST_PORT] established

I hope this helps. Feel free to reach out to us if you have any queries/concerns.

Regards,

Manoaj

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