Jim, We found a workaround. We had been using the WiFi connection on the DIR-825. The Win 8 computer works when using a wired connection, but not with the WiFi. We'll just use the wired connection in the future on this computer.
Interestingly enough, when I tried my Win 7 laptop on my Belkin router with a wired connection it _didn't_ work. So it only works with a WiFi connection. I'm starting to think maybe it has to do with the adapter settings or something. I am using a USB-Ethernet adapter and verified that the adapter did have the Shrew Filter enabled. I don't understand the problem at this point, but we do have useable workarounds. Thank you very much for all of the help. Best regards, Chris Swinehart Mesotech International Inc. 4531 Harlin Drive Sacramento, CA 95826 916-368-2020 (Voice) 916-368-2030 (Fax) http://www.mesotech.com -----Original Message----- From: Jim Harle [mailto:[email protected]] Sent: Friday, August 23, 2013 16:36 To: Chris Swinehart Cc: [email protected] Subject: RE: [vpn-help] Failure to bring up tunnel with Windows 8 through NAT Indeed that will be good to know; and yes, some weird interaction with the Win8 laptop. How "newly installed" is the latter, and is there anyting "special" about it? I can certainly try putting Windows 8 on a laptop and testing it the same way you are...I haven't used Windows 8 on other computers besides my desktop PC, and a couple of family laptops (which I don't have handy). -----Original Message----- From: Chris Swinehart [mailto:[email protected]] Sent: Friday, August 23, 2013 5:15 PM To: Harle Jim Cc: [email protected] Subject: RE: [vpn-help] Failure to bring up tunnel with Windows 8 through NAT Jim, Good idea - I'll try bypassing the DIR-825 and going directly to the cable modem. The DIR-825 does connect directly to a cable modem with nothing in between. That should at least narrow down the problem. If it has to do with the internet connection, I think it will have to be some interaction between that and the Win8 client because with everything else held constant (same internet connection, same router, same Shrew client version and config, etc.) it works on the Win 7 device. Thanks, Chris Swinehart Mesotech International Inc. 4531 Harlin Drive Sacramento, CA 95826 916-368-2020 (Voice) 916-368-2030 (Fax) http://www.mesotech.com -----Original Message----- From: Jim Harle [mailto:[email protected]] Sent: Friday, August 23, 2013 11:47 To: Chris Swinehart Cc: [email protected] Subject: RE: [vpn-help] Failure to bring up tunnel with Windows 8 through NAT Hey Chris, Is it possible for you to test the Win8 laptop "directly," bypassing the DIR-825? And does the latter connect directly to the Internet [cable modem, etc], or is there yet another device in-between? I happen to have a DIR-825 at my house, hardware version A1, firmware version 1.13NA. It doesn't "terminate" my Internet though; I have an appliance firewall connected to a Motorola cable modem, and the DIR-825 is behind that firewall. The 2.2.2 Shrew client on my Win8 x64 desktop PC works fine from behind that DIR-825, and I can try it later with that connected to the cable modem (removing the appliance firewall). My VPN gateway is a Cisco ASA 5520. Your NAT settings are default, and I'm quite sure the iPhone wifi hotspot is a NAT. So perhaps this all boils down to something with the Internet connection itself...not necessarily the devices? -----Original Message----- From: Chris Swinehart [mailto:[email protected]] Sent: Friday, August 23, 2013 11:26 AM To: Harle Jim Cc: [email protected] Subject: RE: [vpn-help] Failure to bring up tunnel with Windows 8 through NAT Jim, Thanks for the reply. Here are the models that I'm dealing with: VPN Server: Cisco RV042 Routers tested: - Old Belkin router without VPN passthrough feature (Win7 laptop works with this, haven't tested Win8 laptop) - D-Link DIR-825 router with VPN passthrough enabled (Two Win7 laptops work, Win8 laptop doesn't) Both Win7 and Win8 clients work with an iPhone WiFi hotspot. I've tried the same configuration on two Win7 laptops, same configuration, they both work. Win 8 laptop doesn't. I followed your instructions: rebooted the router then tried connecting with the Win 8 computer, it failed. I immediately tried connecting with the Win 7 client and worked. Here are the NAT traversal settings in the shrew client: NAT Traversal: enable NAT Traversal Port: 4500 Keep-alive packet rate: 15 secs IKE Fragmentation: disable I've also tried running the client in Win7 compatibility mode, both the installer and the access manager itself, with no change in behavior. Any more thoughts or suggestions? Thanks, Chris Swinehart Mesotech International Inc. 4531 Harlin Drive Sacramento, CA 95826 916-368-2020 (Voice) 916-368-2030 (Fax) http://www.mesotech.com -----Original Message----- From: Jim Harle [mailto:[email protected]] Sent: Thursday, August 22, 2013 10:40 To: Chris Swinehart Cc: [email protected] Subject: RE: [vpn-help] Failure to bring up tunnel with Windows 8 through NAT This doesn't sound like a NAT issue per se...the cell phone could be acting as a NAT device depending on how you connect to it (such as via wifi). Have you tried other NAT'd locations besides the router you speak of? Can you provide the NAT traversal settings being used in the Shrew VPN profile? What is the model of the router that you are testing with, and does it have "vpn passthrough" enabled on it? Have you tried connecting the Windows 8 client first (after a router reboot) or does it still fail, and the Windows 7 client works when trying to connect it 2nd? Just my thoughts, Jim -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Swinehart Sent: Thursday, August 22, 2013 10:04 AM To: [email protected] Subject: [vpn-help] Failure to bring up tunnel with Windows 8 through NAT I wasn't able to find any other reports of known issues with connecting to a VPN behind NAT with Windows 8 and v2.2.2, so here is the description of my situation: 1. I am using the same imported configuration file on both a Win 7 and Win 8 laptop. 2. Both the Win 7 and Win 8 laptops can connect to my VPN server without going through NAT (connected via a cell phone hotspot). 3. When trying to access the VPN through a router, only the Win 7 laptop can finish bringing up the tunnel. The connection process on the Win 8 computer pauses and the tunnel never comes up. I tested this using the exact same router with the exact same router configuration. This leads me to believe that the problem lies somewhere on the Win 8 computer. Any ideas or further troubleshooting steps I can take? Thank you, Chris Swinehart Mesotech International Inc. 4531 Harlin Drive Sacramento, CA 95826 916-368-2020 (Voice) 916-368-2030 (Fax) http://www.mesotech.com _______________________________________________ vpn-help mailing list [email protected] https://lists.shrew.net/mailman/listinfo/vpn-help
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