Re: Fragmented Internet Connection

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OK -

1. Obviously, my guess was wrong - you do have a double NAT issue.

2. You cannot disable NAT on the router - well, you can, but if you do, a
192.168.1.x machine will not get Internet access.

3. What you could do is eliminate the router - ie. enable NAT on the server
and connect the modem (cable/DSL?) directly to the server's WAN NIC, thereby
giving the WAN NIC a public address. In the scenario you describe, I'm not
sure what the purpose of the router is unless you have other machines on the
192.168.1.x network. Even if you don't, the router undoubtedly provides a
firewall and other features which may be desireable. So it's probably worth
trying to make the current configuration work.

4. With your current configuration, your router needs a static route to
192.168.16.x - double check to make sure that this is configured correctly.

5. Double check the forwarders list on your DNS server. ISPs sometimes
change DNS server IPs without notice to you. Also, it is easy to make a
typo when entering these addresses.

6. On your Server, try:

Right click My Network Places and select Properties; click Advanced -
Advanced Settrings. Make sure the Local Area Connection for the
192.168.16.2 NIC is at the top of the binding order.

Doug Sherman
MCSE, MCSA, MCP+I, MVP

"JohnnyD" <jdiggle@xxxxxxxxxx> wrote in message
news:uS02c6CRFHA.3788@xxxxxxxxxxxxxxxxxxxxxxx
> Hi Doug
> Thanks for looking at this
> I am really only routing it thro' the server and have not set up RRAS/NAT
as
> there are so few users. there is NAT configured on the Binatone router and
> the Server's client network is DHCP enabled...should I set up a RRAS
server
> and disable NAT on the router?
> I do have port 80 (among others) translation directly beamed to the
server's
> Ethernet adapter Network Connection (external interface 192.168.1.10)...
>
> "Doug Sherman [MVP]" <dsherman@xxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:%23$WUotCRFHA.3188@xxxxxxxxxxxxxxxxxxxxxxx
> > Are you merely routing LAN traffic through the multihomed server, or is
> the
> > server performing NAT and then sending it to a router which also
provides
> > NAT? One possible explanation for this kind of erratic behavior is
double
> > NAT aka running a NAT device behind another NAT device. Sometimes this
> > works fine, and sometimes, well, it just doesn't. If you are double
> NATing
> > and your Internet router supports static routes, try disabling NAT on
the
> > server and configuring a route to 192.168.16.x on the router..
> >
> > Doug Sherman
> > MCSE, MCSA, MCP+I, MVP
> >
> > "JohnnyD" <jdiggle@xxxxxxxxxx> wrote in message
> > news:uQZLi4BRFHA.2348@xxxxxxxxxxxxxxxxxxxxxxx
> > > When users on my LAN try to access the web they often get "Page cannot
> be
> > > displayed" errors. They can refresh their browser anbd the page comes
up
> > > just
> > > fine. It happens to Win2K and WinXP clients. Traffic routes through
> > SBS2003
> > > Standard NIC #1 and out SBS2003 Standard WAN NIC. When connecting
> directly
> > > through the router and bypassing the server for Internet access the
> > problem
> > > doesn't happen
> > >
> > > Server and Clients' internet connection up and working but
> > sporadic...(there
> > > are 12 client computers and
> > > all dhcp enabled...with the default gateway & DNS being the server -
> > > 192.168.16.2) Any
> > > help would be enormously appreciated!
> > >
> > > IP Config of Server:
> > > Windows IP Configuration
> > >
> > > Host Name . . . . . . . . . . . . : MYSERVER1
> > > Primary Dns Suffix . . . . . . . : mydomain.local
> > > Node Type . . . . . . . . . . . . : Unknown
> > > IP Routing Enabled. . . . . . . . : Yes
> > > WINS Proxy Enabled. . . . . . . . : Yes
> > > DNS Suffix Search List. . . . . . : mydomain.local
> > >
> > > Ethernet adapter Network Connection 2:
> > >
> > > Connection-specific DNS Suffix . :
> > > Description . . . . . . . . . . . : Intel(R) PRO/100 S Server Adapter
> > > Physical Address. . . . . . . . . : 00-0E-0C-6D-53-E6
> > > DHCP Enabled. . . . . . . . . . . : No
> > > IP Address. . . . . . . . . . . . : 192.168.1.10
> > > Subnet Mask . . . . . . . . . . . : 255.255.255.0
> > > Default Gateway . . . . . . . . . : 192.168.1.2
> > > DNS Servers . . . . . . . . . . . : 192.168.16.2
> > > Primary WINS Server . . . . . . . : 192.168.16.2
> > > NetBIOS over Tcpip. . . . . . . . : Disabled
> > >
> > > Ethernet adapter Server Local Area Connection:
> > >
> > > Connection-specific DNS Suffix . :
> > > Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network
> > > Connection
> > > Physical Address. . . . . . . . . : 00-11-43-EC-B3-21
> > > DHCP Enabled. . . . . . . . . . . : No
> > > IP Address. . . . . . . . . . . . : 192.168.16.2
> > > Subnet Mask . . . . . . . . . . . : 255.255.255.0
> > > Default Gateway . . . . . . . . . :
> > > DNS Servers . . . . . . . . . . . : 192.168.16.2
> > > Primary WINS Server . . . . . . . : 192.168.16.2
> > >
> > > I have tried the DNS server both with and without the ISP's forwarders
> and
> > > without to no avail. (and have also tried switching off the client
> > computer'
> > > NIC's power management...)
> > >
> > > Any help greatly appreciated
> > >
> > > Regards
> > >
> > > Johnny
> > >
> > >
> > >
> >
> >
>
>


.

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