PermaLink SonicWall VPN Client Doesn't Work Behind NAT Firewall02/13/2007 06:50 PM
You'd think an IPSEC client is an IPSEC client, but I guess not.  I use a SyGate firewall for the network and it allows the Cisco VPN Client through w/ no problems.  The SonicWall VPN client does not.  It just keeps logging "peer is not responding to phase 1 ISAKMP requests".  If you search for this in SonicWall's knowledgebase, you'll quickly find out that their VPN client has issues w/ NAT firewalls, even if you tell it to do NAT traversal.  You also can't use Cisco's VPN Client to talk to a SonicWall Firewall.  If you want your users to be happy, get a Cisco Firewall and avoid the SonicWall
Comments :v

1. Mani09/01/2009 06:58:57 PM


My system is behind sonicwalll. I am trying to use a software to send efaxes. I think my sonicwall is restricting me form sending faxes. please suggest what need to be checked

Mani




2. Frank Kjaer 07/11/2008 09:52:36 AM
Homepage: http://www.dkfrrakja.dk


Hi
I have same problem with a Phillps router trying to connect to the SonicWall via the VPN client. The log just keep saying :
"An incoming ISAKMP packet from "IPadress" was ignored."
"The peer is not responding to phase 1 ISAKMP requests."
Change the Phillps router to Linksys - Works fine.
SonicWall shoud drown in coffee...




3. Nikola02/14/2008 04:46:15 AM


I have similar problem. I'm trying to connect to remote Sonicwall VPN router from our corporate network which is behind NETGEAR Firewall/router. I have this error in the SonicWall VPN Client
"The peer is not responding to phase 1 ISAKMP requests."
I've tested the client form another computer that is connected directly to the internet and has real static IP and no firewalls behind. It works perfect. So I concluded that the problem is with NETGEAR's NAT or ... I don't know.




4. Jon12/09/2007 09:58:47 PM


If you are still trying to use the client through your Sysgate firewall try disabling NAT Traversal in the client!




5. Ken Yee06/11/2007 01:53:19 PM
Homepage: http://www.keysolutions.com/blogs/kenyee.nsf


Steve: no other clues. Other folks had a similar problem on SonicWall's forums, but no one had an answer. I'll chalk it up to crappy programming
I worked around my issue by punching a hole through the SonicWall firewall and setting up a Linux OpenVPN server on the other end of the hole. At least that's a standard IPSEC server




6. Steve Riggins06/11/2007 06:22:14 AM


I have a problem with SonicWall and Apple's Airport N Router - same issue, blocked at phase 1 ISAKMP. However it works with my linksys WRT54GS.

Any more clues on this problem?
steve at geeksrus dot com




7. Fred Welsh03/27/2007 06:13:34 PM
Homepage: http://nationwidevpn.com


I'm sorry Evan but I do not know how to solve your problem other than either switching the Checkpoint firewall or Sonicwall firewall, to get the VPN to work.
<a href="{ Link } Nationwide VPN</a>




8. Evan03/08/2007 09:20:03 AM


We're trying to set up a VPN between our client and us; we have a Sonicwall firewall, they have a Checkpoint one. We've had trouble making this systems get along because of the idiosyncrasies of setting up via these two firewalls. Anyone have any experience making this work?




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