Routing Problem on a SBS 2003

[James Brown]

Hi all,

i have a very strange problem with the SBS 2003 Premium ISA Server
installed.

I have a server with 2 NIC installed. I NIC is connected to the internal
network. The other
NIC is on the DSL Modem.
I have installed Routing and RAS and configured my ISP-Dial-In. I enter the
default route and
the dial-on-demand interface logs in fine.
When i take a look at the routing table, the default gateway is set to the
default gateway of my ISP. Also very fine.
But when I try to ping to the internet, i get no response. Also when I try
to browse (http) to the Internet.
In the ISA Server, IP-Routing is aktivated and the packet filter is complete
open for my server.

Any ideas? Thank You

James

 

[Pawan Agarwal \(MSFT\)]

Ping to internet might not be working because ping might be blocked by your
ISP.
Do "tracert -d <ip address on internet>" to see where is packet getting
dropped.
If it's getting dropped at your isp router then contact your isp.
If it's not even going out from your machine then probably you have filters
blocking the traffic...

Also when you install VPN server using default configurations then filters
are added on your machine to block all traffic other than vpn traffic. So
you need to open the ports. you can confirm that by going to (on rras ui)
"IP Routing" --> General --> "interface name" --> properties --> "Inbound
filers" button & "outbound filter" button.

Hope it helps
-Pawan
--