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Windows XP VPN issuesHere is an interesting delema I am facing. I am running a VPN server on a windows XP Pro box which is sitting behind my linksys WRT54GL router. I have all the needed ports forwarded and people can connect to my VPN and get a valid IP (192.168.1.160-170). The VPN server shows on the .160 address. I have one friend that when connected we can't ping each other. He is behind a linksys BEFSX41 v2 router. Then I have another friend who is not behind any router and when they are connected, they can ping me but I can't ping them. They have the windows firewall turned off and have no other firewall software to their knowledge. Here are the ipconfig /all results from both the VPN server and the friend who can ping me but whom I cannot ping: Server: PPP adapter RAS Server (Dial In) Interface: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Internal RAS Server interface for dial in clients Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.160 Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : Ethernet adapter INET: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : SiS 900-Based PCI Fast Ethernet Adapter Physical Address. . . . . . . . . : 00-E0-18-74-E0-39 Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.200 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.5 192.168.1.1 Client: Windows IP Configuration Host Name . . . . . . . . . . . . : ***** Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : NVIDIA nForce Networking Controller Physical Address. . . . . . . . . : Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Marvell Yukon Gigabit Ethernet 10/100/1000Base-T Adapter, Copper RJ-45 Physical Address. . . . . . . . . : Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 24.231.81.38 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 24.231.81.1 DHCP Server . . . . . . . . . . . : 24.139.0.21 DNS Servers . . . . . . . . . . . : 216.104.96.18 216.104.96.19 216.104.96.10 Lease Obtained. . . . . . . . . . : Thursday, July 27, 2006 7:25:04 PM Lease Expires . . . . . . . . . . : Saturday, July 29, 2006 5:31:37 PM PPP adapter RoB: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface Physical Address. . . . . . . . . : 00-53-45-00-00-00 Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.161 Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : 192.168.1.161 DNS Servers . . . . . . . . . . . : 192.168.1.5 192.168.1.1 I just tested again and they can ping and connect to shares on my network but I can't ping them. They is not behind a firewall and is connected directly to the internet. As for my other friend, I believe that his router is stopping the traffic along the VPN since if he moves his PC directly to the internet we can communicated using the VPN but when he goes back behind the router we can't ping eachother. If anyone can help with either/both of these issues I would really appreciate it. In the client 192.168.1.161, can your friend ping itself? also use the tracert command to check where is traffic go.
Bob Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com "bkboudreau" <bra***@shaw.ca> wrote in message news:1154368646.848807.136390@p79g2000cwp.googlegroups.com... Hello everyone,Here is an interesting delema I am facing. I am running a VPN server on a windows XP Pro box which is sitting behind my linksys WRT54GL router. I have all the needed ports forwarded and people can connect to my VPN and get a valid IP (192.168.1.160-170). The VPN server shows on the .160 address. I have one friend that when connected we can't ping each other. He is behind a linksys BEFSX41 v2 router. Then I have another friend who is not behind any router and when they are connected, they can ping me but I can't ping them. They have the windows firewall turned off and have no other firewall software to their knowledge. Here are the ipconfig /all results from both the VPN server and the friend who can ping me but whom I cannot ping: Server: PPP adapter RAS Server (Dial In) Interface: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Internal RAS Server interface for dial in clients Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.160 Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : Ethernet adapter INET: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : SiS 900-Based PCI Fast Ethernet Adapter Physical Address. . . . . . . . . : 00-E0-18-74-E0-39 Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.200 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.5 192.168.1.1 Client: Windows IP Configuration Host Name . . . . . . . . . . . . : ***** Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : NVIDIA nForce Networking Controller Physical Address. . . . . . . . . : Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Marvell Yukon Gigabit Ethernet 10/100/1000Base-T Adapter, Copper RJ-45 Physical Address. . . . . . . . . : Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 24.231.81.38 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 24.231.81.1 DHCP Server . . . . . . . . . . . : 24.139.0.21 DNS Servers . . . . . . . . . . . : 216.104.96.18 216.104.96.19 216.104.96.10 Lease Obtained. . . . . . . . . . : Thursday, July 27, 2006 7:25:04 PM Lease Expires . . . . . . . . . . : Saturday, July 29, 2006 5:31:37 PM PPP adapter RoB: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface Physical Address. . . . . . . . . : 00-53-45-00-00-00 Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.161 Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : 192.168.1.161 DNS Servers . . . . . . . . . . . : 192.168.1.5 192.168.1.1 I just tested again and they can ping and connect to shares on my network but I can't ping them. They is not behind a firewall and is connected directly to the internet. As for my other friend, I believe that his router is stopping the traffic along the VPN since if he moves his PC directly to the internet we can communicated using the VPN but when he goes back behind the router we can't ping eachother. If anyone can help with either/both of these issues I would really appreciate it. Robert L [MS-MVP] wrote:
> In the client 192.168.1.161, can your friend ping itself? also use the Robert - your message font size is about 6 points (or possibly even > tracert command to check where is traffic go. smaller), making your responses very difficult to read. Q Thanks
Bob Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com "Quaoar" <qua***@tenthplanet.net> wrote in message news:%23nysntRtGHA.1216@TK2MSFTNGP03.phx.gbl... Robert L [MS-MVP] wrote: > In the client 192.168.1.161, can your friend ping itself? also use the Robert - your message font size is about 6 points (or possibly even > tracert command to check where is traffic go. smaller), making your responses very difficult to read. Q 
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