VPN routing (subnet mask) problem on client computer (Full Version)

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fsd -> VPN routing (subnet mask) problem on client computer (11.Jun.2008 5:03:30 PM)

Hi All,

I've a little problem with ISA2004 VPN that makes estabilishing connection difficulty from the client computers.

ISA server is configured to assign IP addresses for clients by the DHCP server.
The address pool on DHCP is 192.168.1.0 netmask 255.255.254.0.
ISA server address on LAN: 192.168.0.10 mask 255.255.254.0,
DHCP server address 192.168.0.11 mask 255.255.254.0

On the client computers (Windows XP) a standard VPN connection was created in the Networks Connection folder. If on the VPN connection properties dialog "Networking/TCPIP/Advanced/Use default gateway on remote network" was checked all traffic including simple WEB traffic is forwarded to VPN connection but I don't want it so I uncheck this option. In this case the WEB traffic is working well (forwarded to the ISP) but the computer can access only 192.168.1.0 - 192.168.1.255 hosts on corporate network beause it got an IP from DHCP like 192.168.1.0 mask 255.255.255.0 (not not 255.255.254.0) so the computers in range 192.168.0.0-192.168.0.255 are unaccessible. Therefore I should allways execute a route command like this:
route add 192.168.0.0 mask 255.255.254.0 <actual IP address>
after this it can be access the whole network but it a little bit unconfortable.

Can somebody give me a hint?




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