Re: Route an external IP address via site to site vpn
- From: "Ray Collins" <Ray.Collins@xxxxxxxxxxxxxxxxx>
- Date: Thu, 27 Mar 2008 20:52:08 +1100
Hi, the reason we want to this is that the ISP at site 1 has a problem with
a router on their network. We we try to retrive e-mail the traffic doesn't
get to the e-mail server. We use a different ISP at site 2 and so they
don't have an issue. This is just a tempory route until the ISP gets there
router sorted out. So far it has been broken for 4 days, luckily most of
that was Easter holidays.
The site to site connection is via ISA 2004 at both ends
"Terence Liu [MSFT]" <v-terliu@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:c$3Ign%23jIHA.7148@xxxxxxxxxxxxxxxxxxxxxxxxx
Hello Ray,
Thank you for posting here.
According to your description, I understand that you want to route an
external IP address via the site-to-site VPN, and then out to Internet at
the remote site. If I have misunderstood the problem, please don't
hesitate
to let me know.
First, I would like to know what make you to do this. Meanwhile, do you
setup the site-to-site VPN connection thru 2 ISA 2004 servers?
I assume your situation is that: Your local ISP block the traffic to an
external IP, but the remote ISP not. You want to make the traffic to this
IP go to the remote site first, then go to Internet. If this is want you
want to do, I suggest we try the following steps:
We only need to add a static IP route on local ISA server to let the ISA
know the traffic to this IP need go to remote ISA:
Run the following command on local ISA server:
Router add ExternalIP RemoteISAInternalIP
Note: The route will disappear after you restart the local ISA.
If we cannot resolve the issue after we perform the above steps, please
help me collect some information for further investigation:
1. Do you setup the site-to-site VPN connection thru 2 ISA 2004 servers?
2. Let me know the external IP address.
3. Run command "ipconfig /all > c:\ipconfig_sbs_local.txt" and "route
c:\route_sbs_local.txt" on local ISA server 2004, send the filesc:\ipconfig_sbs_local.txt and c:\route_sbs_local.txt to me at
v-terliu@xxxxxxxxxxxxx
4. Run command "ipconfig /all > c:\ipconfig_sbs_remote.txt" and "route
print > c:\route_sbs_ remote.txt" on remote ISA server 2004, send the
files
c:\ipconfig_sbs_ remote.txt and c:\route_sbs_ remote.txt to me at
v-terliu@xxxxxxxxxxxxx
I hope these steps will give you some help.
Thanks and have a nice day!
Best regards,
Terence Liu(MSFT)
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--------------------
| From: "Ray Collins" <Ray.Collins@xxxxxxxxxxxxxxxxx>
| References: <uVXiCH2jIHA.1164@xxxxxxxxxxxxxxxxxxxx>
| Subject: Re: Route an external IP address via site to site vpn
| Date: Thu, 27 Mar 2008 03:56:14 +1100
| Lines: 16
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| Sorry, some more information SBS 2003 with ISA 2004 and 2 nics.
|
| "Ray Collins" <Ray.Collins@xxxxxxxxxxxxxxxxx> wrote in message
| news:uVXiCH2jIHA.1164@xxxxxxxxxxxxxxxxxxxxxxx
| > Hi,
| >
| > due to an ISP issue I need to temporarily route an external IP address
via
| > the site to site VPN and then out to the Internet. The site to site
VPN
is
| > up and running, just not sure how to configure ISA to route one
external
| > IP address via the VPN.
| >
| > Can it be done? If so can I have the beginners guide please ?
| >
| >
|
|
|
.
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