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loosing internet once VPN is installed
- Thread starter boggarapu
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Can't Ping External Network Adapter After Configuring RRAS as a VPN Server
SYMPTOMS: After you configure the RRAS as a virtual private network (VPN) server in Windows 2000 Server with two or more network adapters, pinging the external network adapter does not work. Or you get destination not reachable if you ping other computers from the VPN server. This behavior occurs only while RRAS is running. Pinging the external network adapter succeeds when RRAS is stopped.
RESOLUTION: When you use the Routing and Remote Access Server Setup Wizard to configure RRAS as a VPN server, Input and Output filters are automatically configured on the external network adapter to process only VPN traffic and disable all ports and protocols except protocol 47 (GRE), TCP port 1723 for PPTP Outbound/Inbound, UDP 500 for ISAKMP and UDP 1701 for L2TP.
Can't access the Internet after enabling VPN
Cause: RRAS enables Input and Output filters by default.
Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, VPN & Remote Access on
Can't Ping External Network Adapter After Configuring RRAS as a VPN Server
SYMPTOMS: After you configure the RRAS as a virtual private network (VPN) server in Windows 2000 Server with two or more network adapters, pinging the external network adapter does not work. Or you get destination not reachable if you ping other computers from the VPN server. This behavior occurs only while RRAS is running. Pinging the external network adapter succeeds when RRAS is stopped.
RESOLUTION: When you use the Routing and Remote Access Server Setup Wizard to configure RRAS as a VPN server, Input and Output filters are automatically configured on the external network adapter to process only VPN traffic and disable all ports and protocols except protocol 47 (GRE), TCP port 1723 for PPTP Outbound/Inbound, UDP 500 for ISAKMP and UDP 1701 for L2TP.
Can't access the Internet after enabling VPN
Cause: RRAS enables Input and Output filters by default.
Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, VPN & Remote Access on
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