|
Q:
PPPOE and Windows NAT
issues
I am working on the following
setup:
Computer A: Windows 2003 Server SP1
Nic1: IP address 193.168.211.1 Mask: 255.255.255.0
Nic2: IP address 192.168.211.2 Mask: 255.255.255.224
Computer B: Windows 2000 Advanced Server SP4
Nic3: IP address 192.168.211.5
Mask: 255.255.255.224 Default Gateway: 192.168.211.2
Nic1 is connected to DSL modem, Nic2 and Nic3 are connect to Ethernet Hub. I
can establish an Internet connection and surf the web on Computer A.
However, on Computer B, I cannot establish a connection to the Internet. I
can ping both Nic1 and Nic2 from Computer B and can ping Nic3 from Computer
A. If I ping an external address from Computer A in resolves and pings
properly, if I ping the same domain name from Computer B it resolves but
does not ping back. Both machines are configured as domain controllers with
AD and DNS installed on each. I have configured DNS forwarders on
Computer A and they seem to be working properly. I think I am missing
something in the routing table but I have no idea what. The routing table
below is from Computer A. If anyone has an idea it would be appreciated.
IPv4 Route Table
Active Routes:
Network Destination Netmask Gateway
Interface Metric
0.0.0.0 0.0.0.0 64.218.67.119
64.218.67.119 1
64.218.67.119 255.255.255.255 127.0.0.1
127.0.0.1
50
64.218.67.254 255.255.255.255 64.218.67.119
64.218.67.119
1
64.255.255.255 255.255.255.255 64.218.67.119 64.218.67.119
50
127.0.0.0 255.0.0.0 127.0.0.1
127.0.0.1 1
192.168.211.0 255.255.255.224 192.168.211.2
192.168.211.2
10
192.168.211.2 255.255.255.255 127.0.0.1
127.0.0.1
10
192.168.211.255 255.255.255.255 192.168.211.2 192.168.211.2
10
193.168.211.0 255.255.255.0 193.168.211.1
193.168.211.1 1
193.168.211.1 255.255.255.255 127.0.0.1
127.0.0.1
1
193.168.211.255 255.255.255.255 193.168.211.1 193.168.211.1
1
224.0.0.0 240.0.0.0 192.168.211.2
192.168.211.2 10
224.0.0.0 240.0.0.0 193.168.211.1
193.168.211.1 1
224.0.0.0 240.0.0.0 64.218.67.119
64.218.67.119 1
255.255.255.255 255.255.255.255 64.218.67.119 64.218.67.119
1
255.255.255.255 255.255.255.255 192.168.211.2 192.168.211.2
1
255.255.255.255 255.255.255.255 193.168.211.1 193.168.211.1
1
Default Gateway: 64.218.67.119
===========================================================================
Persistent Routes:
None
A1: I found that since I was using PPPOE to
connect to the Internet I needed to setup RRAS with the Route Internal LAN
and Demand-Dial option. I then had to add and configure my PPPOE connection
under Network Interfaces in RRAS making sure to include to route IP packets
on this interface. I then added two static routes in the Static Routes
section:
0.0.0.0/0 No Default Gateway and set to the PPPOE interface
192.168.211.0/27 No Default Gateway and set to the PPPOE interface
I also added the PPPOE interface to the NAT/Basic Firewall and configured it
as a public interface.
Computer B is now surfing the web like a champ!
Related Topics
VPN Browsing Issues
VPN Error
Code
VPN Logon
Issues
VPN Name Resolution
VPN as
Router
VPN Routing Issues
VPN
TCP/IP Settings
Ports
for VPN
VPN/PPTP
VPN Slow
Issues
|
