Pat

Some comments:

1. For IPSec to work the access list at the other end for the crypto map
priority that is matched in the SA must be the mirror of yours ie.

access-list 120 permit ip 10.54.1.0 0.0.0.255
10.55.1.0 0.0.0.255

2. issue a "sh crypto ipsec sa" command with the access list still active and
the with the access list deleted. The output of this command will tell you if
any IPSec connections have been formed.

3. Try a "debug crypto isakmp" and "debug crypto ipsec" and apply the crypto
map to the interface and watch the debug output. Example outputs are on the
CCO...


3. Is this same access list applied to the interface you telnet to the other
router in such a way that removing it leaves a deny any any on that interface
( I assume the access list 20 you refer to is actually access list 120)?

Hope this helps.





Cheers

Jim Gillen

Snr Communications Engineer
AUSTRAC

Ph:   9950 0842
Fax:  9950 0074



>>> pat  21/05/02 14:00:38 >>>
This message has been scanned by MAILSweeper.
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I am trying to set up site to site tunnel between
cisco routers. I am having problem with crypto access
list on remote outers. I am configrung access-list 120
& crypto commands as follows


crypto isakmp policy 10
authentication pre-share
crypto isakmp key ****** address XX.XX.XX.XX
!
!
crypto ipsec transform-set test esp-3des esp-md5-hmac
!
crypto map test 20 ipsec-isakmp
set peer XX.XX.XX.XX
set transform-set test
match address 120


access-list 120 permit ip 10.55.1.0 0.0.0.255
10.54.1.0 0.0.0.255


I have acess to remote routers through telnet over the
internet. List 20 is in no way related to my access.
But when I try to remove access-list 20 i loose my
telnet session & can't ping it either. This happened
on multiple remote routers. I am using
IOS (tm) C2600 Software (C2600-IK9O3S-M), Version
12.2(3), RELEASE SOFTWARE (fc1)

In ideas why this is happening ?

Thank you all,
Pat


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