Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
Silver

ACLs

Any easy technique to figure out in which direction to configure ACL on an interface. It is kinda confusing.

---

Posted by WebUser Haroon David Peter

2 REPLIES

ACLs

_______(IN)LAN Interface(OUT)----ROUTER-----(IN)WAN Interface(OUT)____________

Every interface has got in/out so if you want to control LAN traffic going outside - Outbound ACL -IN direction.

                                                        If you want to control WAN Traffic going Inside-- Inbund ACL --- OUT direction.

Though you can drop packet anywhere but always better to drop before in gets into router.

Hope this helps.

Thanks

Ajay

ACLs

Hi,


When you apply an ACL "in", the router examines all traffic it RECEIVES on the interface against the ACL. 

When you apply an ACL "out" on an interface the router examines any traffic attempting to leave that interface against the ACL.

Please rate the helpfull posts.
Regards,
Naidu.

243
Views
0
Helpful
2
Replies
CreatePlease to create content