Hi, I've a question about Vista VPN and DHCP option classless routing entry problem, I can't download specific routing entry from DHCP Server. I've found a similar case: http://social.technet.microsoft.com/Forums/en-US/itprovistanetworking/thread/bfe43ccb-ec6e-4540-ab17-f76b20b715b8. It's not work...I've also try to upgrade Vista to SP2 version and add following registration: reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp\Parameters\DhcpGlobalForceBroadcastFlag\0 /f /v 0 /t REG_DWORD /d 0, but the problem insist.Can any body tell me how to do that ?Thank you,

Hi, Thanks for posting in Microsoft TechNet Forum. Based on my research, you need to select the Use default gateway on remote network check box in the VPN TCP/IP settings. For more information, please visit the following two articles. VPN Addressing and Routing http://technet.microsoft.com/en-us/library/cc779919(WS.10).aspx#w2k3tr_vpn_how_dkma Routes do not work correctly for VPN connections that have classless addresses that share a classful address in Windows Server 2008 http://support.microsoft.com/kb/946409 Hope this helps. Thanks.

Hello,Thanks for your feedback.About your informations, classful address routing is denied by Server2008 or Vista also. Please check my procedures,1. Setup following DHCP optionsCode: 121 Type: UNIT8LIST Parameter: 24,192,168,4,10,1,1,1Code: 249 Type: UNIT8LIST Parameter: 24,192,168,4,10,1,1,12. In XP, you can see such routing is added in system. Please check below http picture link.http://ben.wu1126.googlepages.com/route_print_winxp.JPG.jpg3. In VIsta, you can see no routing added in system. Please check below http picture link.http://ben.wu1126.googlepages.com/route_print_vista.jpgwhy you think that the root cause is in the classless/classful addresses ? Do you mean there's a problem in Server 2008 or Vista ? Actually, we're D-Link HQ, and we've a lot of customers are complaining about this problem for a long time, if you've any solution, please kindly share with us. If this's a known issue of VIsta/2008, please share related documents also.My E-Mail address: EMAIL GONEThank you in advance,BRBenson

Can any body help me ??