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 From:  Michael Brown <knightmb at knightmb dot dyndns dot org>
 To:  Chris Janvrin <chrisjanvrin at sellmytimesharenow dot com>, m0n0wall <m0n0wall at lists dot m0n0 dot ch>
 Subject:  Re: [m0n0wall] Trouble with remote NetBIOS name resolution over PPTP VPN.
 Date:  Sun, 20 Jan 2008 23:39:50 -0600
Ok, cool. What you do now is first check to see what domain you have 
setup for "General Setup", might be anything (mydomain.com) or whatever.
Basically, you need to match that domain to a DNS override. To get to 
that, you then go to "DNS Forwarder", turn it on if it isn't already 
turned on. Next, put a check mark beneath it for the "Register DHCP 
leases in DNS forwarder", finally you want to assign a static IP address 
in the DHCP section for those computers in question. So for example, you 
assign the "server" to Afterwards, save all settings, and 
have that machine renew it's IP address so that it pulls it's new static 
address. Finally, go back to the DNS forwarder and create an "override" 
DNS entry. In this case, it's set to the machine name followed by the 
.domain part. So if the UNC name of that server was "server" and it was 
assigned to by DHCP, the DNS entry would be similar to
domain = server.mydomain.com
IP =

Save again, and from now on, any machine attached to that m0n0wall using 
it's DNS for lookups will always resolve the UNC name of "server" to, which will make windows based programs using UNC finally 
happy as it will resolve to a valid and known IP address. Drive mappings 
will work, and all the other great stuff. You can even use this to map 
UNC to a linux machine for example (which is what I do for windows sake).

That would allow you "trick" the UNC wanting programs without having to 
reconfigure all the software for them, instead m0n0wall handles all of that.

I hope that helps.


Chris Janvrin wrote:
> I have it set up to use the m0n0 address it's connecting to for DNS. 
> In other words, in advanced TCP/IP properties I have the m0n0 address 
> ( specified to serve as it's DNS server. I also have 
> specific IPs specified in m0n0 for remote clients. I think (hope!) 
> that's what you mean :)
> Chris
> Michael Brown wrote:
>> Ok, next question, does the PPTP use the m0n0wall address for it's 
>> DNS resolution or the one that it's local LAN is part of. I know you 
>> can usually change those, but I wanted to check first before moving 
>> forward.
>> Thanks,
>> Michael
>> Chris Janvrin wrote:
>>> Hello Michael, thank you for your help.
>>> We are currently set up so individual PCs are "dialing in" to the 
>>> remote server via PPTP, not IPSEC.
>>> Chris
>>> Michael Brown wrote:
>>>> I've encountered this same issue and their is an easy fix for it, 
>>>> but I need t know if by PPTP you mean one computer is "dialing" in 
>>>> to the remote site or if they are linked by IPSEC and by absolute 
>>>> paths you mean machine name like //server or //accounting?  I had a 
>>>> company in which it had a central office that was linked to 4 other 
>>>> sites by IPSEC and their AV & Mortgage software would only work 
>>>> with UNC paths like //server in the software (couldn't use map 
>>>> drives due to too different machines or IP address)
>>>> I don't want to send you on a wild goose chase without knowing 
>>>> which is which first.
>>>> Thanks,
>>>> Michael
>>>> Chris Janvrin wrote:
>>>>> First off, thanks for looking!
>>>>> I am at a remote office of my company trying to integrate their 
>>>>> accounting procedures with the home office. More specifically, I 
>>>>> am trying to install accounting software on two remote PCs that 
>>>>> communicate with our main accounting server in the home office. 
>>>>> While using the PPTP VPN I can map remote shares to the remote 
>>>>> server using the remote server's IP address, but unfortunately our 
>>>>> accounting software (Peachtree Quantum) requires what they call 
>>>>> "absolute paths" e.g. NetBIOS names for drive mappings, and not IP 
>>>>> addresses.
>>>>> The home office is equipped with a net5501-70 running m0n0 1.232, 
>>>>> and the remote office is equipped with a net4801-60 running 1.3b7.
>>>>> Any ideas?
>>>>> Thank you in advance for any help you can provide.
>>>>> Chris Janvrin
>>>>> Dover, NH
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