clients can't access internet after VPN client connected?

[lyndon]

i install a vpn client of IPD(http://www.ipdynamics.com) on ther wingate server.
but when the vpn client connected, other client that use the wingate to access internet can on longer go onto internet.
i had trid to change wigate''s proxy port number, but it still does not work.
net top like this:


some info of ipd vpn:
ipd vpn is an absolute soft orientated vpn solution with ipsec architecture.it has a manager server in the isp. client soft firstly connect to the manager server with tcp port 80.then data between clients encapsulates in datagram with tcp port 80 or 20202 or udp 20202 etc.

[genie]

Can you check the routing table on Wingate machine before and after VPN is connected?

[lyndon]

subnet 1.0.0.0 is used for VPN.the latter route table is the one as VPN client connected.
when vpn client connected,the server can still access internet while the clients can not.

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x1000003 ...44 4e 45 00 00 02 ...... Virtual Adapter
0x1000004 ...00 d0 59 aa 73 01 ...... Intel(R) PRO/100 VE Network Connection
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.145 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
169.254.0.0 255.255.255.0 169.254.0.253 169.254.0.253 1
169.254.0.253 255.255.255.255 127.0.0.1 127.0.0.1 1
169.254.255.255 255.255.255.255 169.254.0.253 169.254.0.253 1
192.168.1.0 255.255.255.0 192.168.1.145 192.168.1.145 1
192.168.1.145 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.1.255 255.255.255.255 192.168.1.145 192.168.1.145 1
224.0.0.0 224.0.0.0 169.254.0.253 169.254.0.253 1
224.0.0.0 224.0.0.0 192.168.1.145 192.168.1.145 1
255.255.255.255 255.255.255.255 169.254.0.253 169.254.0.253 1
Default Gateway: 192.168.1.1
===========================================================================
Persistent Routes:
None
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x1000003 ...44 4e 45 00 00 02 ...... Virtual Adapter
0x1000004 ...00 d0 59 aa 73 01 ...... Intel(R) PRO/100 VE Network Connection
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.145 1
1.0.0.12 255.255.255.255 1.0.1.28 1.0.1.28 1
1.0.1.0 255.255.255.128 1.0.1.28 1.0.1.28 1
1.0.1.28 255.255.255.255 127.0.0.1 127.0.0.1 1
1.255.255.255 255.255.255.255 1.0.1.28 1.0.1.28 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.1.0 255.255.255.0 192.168.1.145 192.168.1.145 1
192.168.1.145 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.1.255 255.255.255.255 192.168.1.145 192.168.1.145 1
224.0.0.0 224.0.0.0 1.0.1.28 1.0.1.28 1
224.0.0.0 224.0.0.0 192.168.1.145 192.168.1.145 1
255.255.255.255 255.255.255.255 1.0.1.28 1.0.1.28 1
Default Gateway: 192.168.1.1
===========================================================================
Persistent Routes:
None

[genie]

So when VPN is connected, clients cannot connect to the server as well - is this correct?

[lyndon]

clients can access wingate server when the server connected VPN net,eg ping,file sharing etc.

[genie]

Hi,

If you disable Wingate ENS driver (you have to reboot the machine after chaning this setting) - does the problem remain?

[lyndon]

i have disabled the ENS drivers and rebooted the server as you said,but the matter is still there.

[genie]

Meaning that the VPN driver blocks this traffic - is there anything in this VPN product FAQ or knowledgebase in regard to this traffic blocking?

[lyndon]

hi ,genie.
could you please be more kindful to have a test of this?
if so ,please give me your email and i will send you a test account of that vpn and the download url of the software.
MY MSN:lyndon_lyh@hotmail.com

thanks.

[lyndon]

i have tested a proxy server "ccproxy"(a popular one made in china ),it can works very well.
i think that as long as the server has a right route to internet and can access internet normally, the vpn data traffic and other traffic will no longer conflict. the server itself can distinguish the two different traffic for that the server can access internet when vpn connect .