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No ACLs in router if firewall is behind it?

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Last Modified: 2012-05-06
We have a remote site with a T1 to the internet.
They have an 1841 router with an ASA behind it.

I noticed the router itself has no ACLs on it to protect it from the outside world. But the ASA is properly configured.  I understand that your firewalls should be doing the packet filtering, but is this best practices? We do have several tunnels terminating in the ASA
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