11-10-2017 01:55 PM - edited 03-12-2019 04:43 AM
Hi
I have cisco asa connected to cisco 887vaw router with dsl internet connection.
I have internet connection working on both. I have configured vpn IPsec on cisco asa, I can connect from inside but I can not connect from remote.
can you help please?
Solved! Go to Solution.
11-17-2017 07:13 AM
Hamid
The port forwarding looks to be correct. I am surprised that there is no debug output when you attempt to establish a VPN session from a source in the Internet. Is it possible that there is some connectivity issue, or perhaps some DNS issue that prevents the VPN traffic? From the source in the Internet can you ping the ISP address?
HTH
Rick
11-17-2017 02:00 PM
Hi Richard
I did ping for wan ip and dns-server in puTTY , Success rate is 100 percent.
Kind Regards
Hamid
11-19-2017 07:01 AM
I looked at the router config that you posted in the earlier post and I wonder if the static nat in it impacts the port forwarding that you are doing for ISAKMP and ESP
ip nat inside source static 10.10.10.1 interface Dialer0
I am not clear why this static nat is in the config and I suggest (at least as a test) that you remove it and see if ISAKMP works then.
HTH
Rick
11-19-2017 09:52 AM
Hi Richard
Thank you very much for your reply.
I did remove the the static nat ,but still doesn't work and I can not get any
information when I use debug crypto isakmp.
any other suggestion please?
Kind Regards
Hamid
11-19-2017 10:40 AM
Hamid
Would you post the output of show xlate on the router? Perhaps it would help if you also post a fresh copy of the current config of the router.
HTH
Rick
11-19-2017 11:03 AM
11-19-2017 12:11 PM
11-19-2017 02:25 PM
Hamid
Thanks for the additional information. What I wanted to see was the translation table on the router. What is in your post is the translation table from the ASA.
HTH
Rick
11-20-2017 08:51 AM
11-27-2017 07:52 AM
Hamid
Thanks for the output showing the translation table from the router. I am sorry that I complicated things by suggesting syntax that was not right. The table does confirm static translations for ISAKMP and for ESP. I am puzzled that it seems that the ISAKMP request is not getting to the ASA. Perhaps you could post a fresh copy of the router config?
HTH
Rick
11-27-2017 12:01 PM
11-28-2017 07:01 AM
Hamid
Thanks for posting the router config. I do not see anything obvious that prevents forwarding ISAKMP but I do see a couple things that I would suggest changing.
In this first line I am not clear what this is doing and I do not find any pool named LAN. So I suspect it is not doing much and suggest that you remove it
ip nat source list LAN pool LAN
These next two lines seem to duplicate themselves. I think the first one is better because its ACL is more specific. I suggest that you remove the second one which uses the any ACL
ip nat inside source list LAN interface Dialer0 overload
ip nat inside source list any interface Dialer0 overload
HTH
Rick
11-28-2017 01:45 PM
11-28-2017 02:03 PM
Hamid
Thanks for the update. I notice this line in the config
no crypto ipsec nat-transparency udp-encapsulation
I do not remember it in previous versions of the config. But I suggest that you change it
crypto ipsec nat-transparency udp-encapsulation
HTH
Rick
11-28-2017 02:56 PM
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