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data interruption on ACL's ?

We are in the middle of a migration of some services but we need to apply some kind of "basic" security and I was thinking of using ACL's.

But....

Will there be any impact on established connections ( interactive and non-interactive ) when I make changes to the ACL ?

I need to know what the impact will be on active connections when I remove the ACL from the interface ( to make changes )

I need to know what the impact will be on active connections when I apply the ACL on the interface ( after changes are made )

The connections are very sensitive ( SAP, JBOSS, MQ ) and need a reconnection when interrupted which is not an option to end-users...

1 REPLY
Cisco Employee

Re: data interruption on ACL's ?

If the connections are already established then no.

The ACL checks are done for new connections and existing ones go through the TCP state checks but not through the ACLs.

I hope it helps.

PK

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