Why aren't you using 2 network cards? You should not be multihoming one
network card by usinn multiple bindings!
You need to have 2 network cards in the proxy or 2 interfaces on the router.
Perferably you would have 2 interfaces on the router (to make sure users can
not cirvcument the proxy).
What it looks like you are doing now is multihoming the server by giving it
an internal address and an external address on the same interface. The
default gateway makes sense of course because it needs to have a direct
route out to the internet which has to be the address of the router.
With using 2 nic's you can bind WINS internally to the one network card and
disable it on the external interface. This way the proxy can participate in
WINS internally as well as having an interface with a correct default
In this model you do not have to wory about routing because the proxy
handles the transfer of packets between the interfaces (the idea of using a
Mail me if you are confused with this explanation. It's seems obvious to me
why you are having this trouble
Jeff Wierer MCSE
Download Services FAQ v.96 at http://proxyhelp.wierer.net
>Ok, let me explain another way:
>IP Address Page:
> IP Address = 172.19.29.17
> Subnet Mask = 255.255.255.0
> Default Gateway = Internet Router IP Address, NOT 172.19.29.1 which is the
>WAN router IP address
> Then, hit the advanced button:
> IP Address, add IP LIVE ADDRESS since this machine needs live access to
> Gateways, add 172,19.29.1 which is the WAN router ip address
>This is the only way that this setup will work.
>If I have the default gateway = 172.19.29.1 then the internet connectivity
>does not work
>If I have the default IP addresses set to the live internet addresses then
>WINS crashes and cannot communicate to the rest of the WAN on the
>I do not understand if there is a way to tell NT that all 172.19.x.x
>gets sent to 172.19.29.1 and all other traffic goes to my internet router.
>Does this explain it a little better?
>>You should not have any problems as long as all your systems are on the
>>network in between the two routers, 179.19.x.x and have the subnet mask of
>>255.255.255.0. Course this assumes that you will not have more than 255
>>nodes on that segment.
>>However, I did not understand your statement about the additional IP
>>internet address and the subnet mask. Which system is this on? This can
>>change your network configuration. Need more in this area.
>>>Here are my problems:
>>>PROXY 2.0 - all users have all access rights for now, everyone has all
>>>privelages under the web proxy, and under the winsock proxy. All users
>>>experiencing timeouts, but if they hit refresh on their browser the site
>>>comes up instantly
>>>DNS - the MX records suddenly disapeared from existance, even thought
>>>were still in the database. I had to delete the DNS files completely and
>>>I am wondering if either of these problems have something to do with the
>>>general configuration of IP on this machine. I do not know a whole lot
>>>about how NT does it's internal IP routing. Here is my IP configuration:
>>>We have 2 routers on our physical network, 1 connects to the internet and
>>>one to the WAN. The WAN uses 172.19.x.x internal IP addressing.
>>>I setup an NT server 4.0, SP3, DNS, IIS 3.0, Exchange 5.5 and Proxy 2.0,
>>>My ethernet card has the following settings:
>>>172.19.29.17, subnet mask=255.255.255.0 and default gateway is the
>>>router IP address. I also bound an additional IP address which is a live
>>>internet address to the card with a subnet mask of .224.
>>>I had to set the default router to the internet router to get anything to
>>>work, and the default IP address has to be the internal address or all NT
>>>networking fails - WINS in particular goes haywire!
>>>Some of this may also have to do with my masterbrowser problems. My
>>>office computers appear in the WINS database, but not in network
>>>I also tried to install ILS 2.0, but I get problems when the LDAP service
>>>attempts to start, and there is no support at all for ILS 2.0. We want
>>>use netmeeting within the office, and it seemed like I needed this ILS
>>>If anyone has any input on this configuration, please let me know!
>>>I have not done many configurations like this before, so if anyone has
>>>suggestions please send them to me!!!
>>>Everything is sort of working, but I have a feeling I have something
>>>Thanks in advance for any advice!