ACL ASA5540 does not not for VPN access.

I'm under code 8,03 and have a simple VPN L2L configured between two sites. It is in fact a test config in my lab, but I'm unable to restrict traffic using an ACL inside.

I used the VPN Wizard to do the config initial and then added an Interior (out) ACL to restrict traffic once the tunnel rises.

The encryption card is as follows:

access extensive list ip 164.72.1.128 outside_1_cryptomap allow 255.255.255.240 host SunMed_pc

Then I have an ACL to limit traffic to ping GHC_laptop, telnet to GHC_switch and denying the rest:

inside_access_out list extended access allowed icmp host host SunMed_pc GHC_Laptop

inside_access_out list extended access permit tcp host SunMed_pc host GHC_switch eq telnet

inside_access_out deny ip extended access list a whole

However SunMed_pc can also ping at GHC_switch and can FTP to GHC_laptop even if the 3rd entrance to deny any meter increases when I do this.

I have attached a Word document that has the entire config with a screenshot showing the ACL and the shots.

Should I configured incorrectly, or is ACL ACL actually does not work as expected?

You can still keep all the IP for your acl interesting traffic. If you delete the sysopt, then you would write access in your acl 'inside_access' like you did above.

If you are going to have dozens of tunnels l2l and will limit all, then I just remove the sysopt and use the acl interface.

There is another option. You can leave the sysopt and use a vpn-filter. It is explained here and can be applied to l2l.

http://www.Cisco.com/en/us/products/HW/vpndevc/ps2030/products_configuration_example09186a0080641a52.shtml

http://www.Cisco.com/en/us/docs/security/ASA/asa80/command/reference/uz.html#wp1524559

Tags: Cisco Security

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