# Interesting traffic ACL in GRE?

**URL:** https://forum.networklessons.com/t/interesting-traffic-acl-in-gre/8003
**Category:** Security
**Created:** [August 22, 2019, 10:11am UTC](https://forum.networklessons.com/t/interesting-traffic-acl-in-gre/8003 "2019-08-22T10:11:59Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![carlosvanderkuijl](https://cdn-forum.networklessons.com/letter_avatar_proxy/v4/letter/c/8edcca/32.png) [@carlosvanderkuijl](https://forum.networklessons.com/u/carlosvanderkuijl)
#### Post date: [August 22, 2019, 10:11am UTC](https://forum.networklessons.com/t/interesting-traffic-acl-in-gre/8003/1 "2019-08-22T10:11:59Z")

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Hi All! I’m little bit confused, i’m configuring a routed based vpn, GRE tunnel for a ASA and a Router with both Ipsec in my test enviroment. Do a still need a interesting traffic ACL and do i also need to exempt traffic from noNat or Overload, this is needed for a policy based vpn configuration (Anyconnect or site to site)?

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### Author: ![lagapidis](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/lagapidis/32/4949_2.png) [@lagapidis](https://forum.networklessons.com/u/lagapidis)
#### Post date: [August 26, 2019, 5:16am UTC](https://forum.networklessons.com/t/interesting-traffic-acl-in-gre/8003/2 "2019-08-26T05:16:06Z")

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A post was merged into an existing topic: [Encrypted GRE Tunnel with IPSEC](https://forum.networklessons.com/t/encrypted-gre-tunnel-with-ipsec/999)

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### Author: ![lagapidis](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/lagapidis/32/4949_2.png) [@lagapidis](https://forum.networklessons.com/u/lagapidis)
#### Post date: [August 26, 2019, 5:16am UTC](https://forum.networklessons.com/t/interesting-traffic-acl-in-gre/8003/3 "2019-08-26T05:16:06Z")

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