Cisco VPN Filters

SKiTLz

2[H]4U
Joined
Aug 3, 2003
Messages
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Anyone know much about Cisco IPSEC VPN Filters? They don't appear to work like a regular ACL.

First of all I have the VPN Filter assigned and working. From what I can gather the ACL's are bi-directional with only one ACE entry. What I'm noticing though is Deny doesn't seem to take precedence over allow no matter what order you put the ACE's in.

I also read that when specifying ACL's for VPN filters you should specify the remote network first.

E.g.

ACE Denying 192.168.1.10 -> 192.168.2.0/24
ACE Allowing 192.168.1.0/24 (Remote Network) -> 192.168.2.0/24 (Local)

Even though the Deny is first, because I have the bi-directional allow all rule the deny does nothing.

Anyone have more experience with VPN filters that might be able to clarify.
 
yes, they are weird... they are basically ACLs with source and dest reversed. I don't quite understand why they did it this way.
 
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