So, I've got two absolutely identical machines - I mean absolutely identical hardware. One runs Windows 7 64-bit and one runs Ubuntu 10.04 64 bit desktop.
In all cases, the ShrewSoft configurations are the same between the Windows and the Ubuntu machines. I can run ShrewSoft 2.1.5 (via the Ubuntu package manager) and establish a Mutual PSK+XAuth VPN connection using both a non-ModeConfig and ModeConfig configuration. I can also run ShrewSoft 2.1.5 (via download from ShrewSoft.com) on Windows 7 64-bit and establish a Mutual PSK+XAuth VPN connection using both a non-ModeConfig and ModeConfig configuration. The non-ModeConfig connections use the 'existing adapter and current address' whereas the ModeConfig connections use the 'virtual adapter and assigned address'. Here's the kicker that's got me wondering if Ubuntu 10.04 has a routing bug: In all instances of VPN connections *except* the Ubuntu 10.04 ShrewSoft ModeConfig connection, everything works flawlessly as expected. Only with the Ubuntu 10.04 ShrewSoft ModeConfig connection I cannot ping hosts on the remote end of the VPN, nor can I see any host on the remote end. The routing tables look good to me (netstat -r and route output), the Virtual Adapter (tap0) establishes the expected (non-overlapping) IP address, yet, the only instance of improper (or non-existant) routing occur with virtual adapters on Ubuntu 10.04. Under Ubuntu 10.04, when I ping the remote end of the VPN connection, the tap0 adapter does not register any traffic, but the eth0 adapter does. This leads me to believe Ubuntu 10.04 has a routing issue with virtual adapters. Does it matter that I'm using Netgear VPN firewalls? I don't think so, since the Windows 7 works fine using the non-ModeConfig and the ModeConfig settings, and the Ubuntu 10.04 box works fine using the non-ModeConfig settings. I could supply all the various permutations of logs and configurations that I've tried, but the fact that I can establish connectivity in all instances leads me to believe the problem is *not* with my ShrewSoft configurations and/or VPN connections. Here's the bottom line: Windows7 -> FVS114 -> FVS336G -> remote host in either 'Mutual PSK + XAuth' non-ModeConfig or ModeConfig settings, after establishing the VPN, the Windows7 machine can ping the remote host and see hosts on the remote LAN Ubuntu10.04 -> FVS114 -> FVS336G -> remote host in 'Mutual PSK + XAuth' non-ModeConfig setting, after establishing the VPN, the Ubuntu machine can ping the remote host and see hosts on the remote LAN in 'Mutual PSK + XAuth' ModeConfig setting, after establishing the VPN, the Ubuntu machine cannot ping the remote host, nor can it see anything on the remote LAN. Thoughts anybody? _______________________________________________ vpn-help mailing list [email protected] http://lists.shrew.net/mailman/listinfo/vpn-help
