Re: sysopt permit-ipsec



I notice the same behavior on 6.3(3).

The documentation say

connection permit-ipsec
Implicitly permit any packet that came from an IPSec tunnel and bypass
the checking of an associated access-list, conduit, or access-group command
statement for IPSec connections.



so i guess it indicates that it only applies on the outside access-group ,
since the traffic hitting the inside
interface is not coming from an IPSec tunnel, but is going TO an IPSec
tunnel.



"Chris" <chris@xxxxxxxxxxxxxxxxxxx> wrote in message
news:ZdydnavOQv7BhufeSa8jmw@xxxxxxxxxxxxxx
>I installed a Pix 501 today and configured an IPSec VPN to another site
>managed by a third party. Everything went okay and the VPN works fine. Once
>everything was up the sysadmin at this company asked me if the site had
>direct internet access, which they did so he asked me to block all outbound
>traffic to the internet to force everything down the VPN to the proxy
>server at head office.
>
> As my config had 'sysopt connection permit-ipsec' I presumed that I could
> just put a 'deny all' ACL on the inside interface to block all traffic and
> that any traffic matching the crypto access list for the VPN would by-pass
> the 'deny all' acl on the inside interface. However once I had applied it
> the VPN connectivity stopped and a look at the logs showed the traffic
> being blocked by the inside acl. So I added a line above the deny all
> statement to permit this local network to the central office network and
> that fixed the VPN. If I look at the acl I can see the hit count going up
> on the line that permit VPN traffic as well as the crypto acl.
>
> My question is, am I correct in thinking that the 'sysopt connection
> permit-ipsec' *should* bypass the inside acl if the traffic is matched by
> the crypto acl? This is on 6.3(5).
>
> Thanks,
>
> Chris.
>
>


.



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