I am at the end of my rope and am reaching out for some knowledge, please
share what you can.
I have a SBS2003 server with 2 nics. My inside NIC is set to hand out IPs
through DHCP with a scope of 192.168.16.*, my outside NIC is on
192.168.1.*
and I do have a Linksys router set up with a static IP to the ISP. My
network, exchange, and other apps have been fine but I am up against a
wall
with a state mandate which is forcing us to VPN using an AT&T global
network
client VPN.
The point I am at now is that I can connect to the VPN if I set my
router's
static IP config to a laptop and connect directly to the ISPs DSL gateway.
I
can also connect if I plug into my router and turn DHCP on and let the
router
give me an IP.
What I cannot do is connect to the VPN from any domain (or a vanilla XP
setup without domain configured). I receive a IPSEC error telling me that
protocol 50 or ****t 4500 are not configured to allow IPSEC. For months I
had
been back and forth with the ISP because I had thought it was there
problem
(I was unable to ever connect unless I went through another ISP in another
town). But today the ISP made some configuration changes and with my
vanilla
XP laptop was able to connect from there location, then came to my
location
and was able to make the successful connections I discussed above.
They are telling me that my server is acting as a router and that I need
to
configure the UDP ****t on the DHCP scope. I am not sure exactly where to
open ****ts or if I can from the server and have looked all over the place.
In addition I am running Symantec EndPoint and not the WIndows firewall
(if
that matters).
I will capture my server's IPCONFIG and see if there is anyone who can
help.
The ISP also noted that if I would just run DHCP from the linksys router
I
shouldn't have the problem since the router is configured with all of the
****ts necessary for the VPN connection. Unfortunately I don't think I can
do
that without unravelling a server configuration that is working otherwise.
Please assist.. suggestions? I appreciate your help!!!
