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TCP/IP Settings for VPN

Why does my VPN server or client PPP adapter have 169.x.x.x IP
Why my XP VPN client's subnet mask is 255.255.255.255

Why my XP VPN client's IP is the same as default gateway IP
Unable to contact a DHCP server - Event ID 20169

Why does my VPN server or client PPP adapter have 169.x.x.x IP

When using ipconfig command on a VPN (server or client), you may get PPP adapter RAS Server (Dial In) Interface; IP Address - 169.x.x.x; Subnet Mask  - 255.255.255.255. This is because your VPN server doesn't have DHCP to assign IP so that the the VPN server uses APIPA to provides an address like 169.x.x.x.

Why my XP VPN client's subnet mask is 255.255.255.255

This is by design. Since this connection is point to point, not point to net or net to net, VPN server assigns 255.255.255.255 mask to the client.

Why my XP VPN client's IP is the same as default gateway IP

This is by design. Since this connection is point to point, VPN server assigns the same IP to VPN client and client's gateway.

Unable to contact a DHCP server - Event ID 20169

Causes: 1. You don't have DHCP server.
2. The RRAS server can't contact to the DHCP.
3. The DHCP is out of the IP
4. The RRAS doesn't  assign IP to the VPN client.

Related Topics

VPN error code
Receiving VPN error 619 while connecting to a VPN via SBC VPN Error 624 - Cannot
update the ... VPN Error 734 - The PPP link control protocol terminated. ...
www.chicagotech.net/vpnerrors.htm

VPN troubleshooting tools
VPN Troubleshooting Tools. 1. PPTPclnt and PPTPsrv to test GRE and PPTP. 2.
IPCONFIG to troubleshooting connection and name resolution issues ...
www.chicagotech.net/vpnissues/vpntools.htm 

VPN Setup
The VPN server should have a static IP address and assign the arrange IP addresses to
... The VPN server must also be configured with DNS and WINS server ...
www.chicagotech.net/vpnsetup.htm 

VPN Issues
Troubleshooting VPN VPN Browsing Issues VPN Error Code VPN Logon Issues
VPN Name Resolution VPN as Router VPN Routing Issues VPN TCP/IP Settings ...
http://www.chicagotech.net/vpnindex.htm  

RRAS/VP Q&A Collections
Access remote computer using hostname over VPN without WINS and lmhosts
Accessing the Internet is low while connecting to a VPN ...
www.chicagotech.net/Q&A/vpnq&a.htm

 

 

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