Same IP range on both sides of VPN

I have a friend that is trying to VPN into my domain server, he can
establish a connection but can not seem to get anywhere else on the system
either by ip address or \\server name.

my domain is set up with 10.10.1.0 255.255.255.0 and his domain that he is
trying to vpn out of is 10.10.0.0 255.255.0.0.

Does this cause an issue? He believes the reason is, is after it connects
that when he either tries to go to the server either by ip address or by
\\name that instead of looking on my Domain to reolve where to go that it is
actually looking for these on his local Domain?

I can see him connected and assigned and ip. Others from different
locations (including myself) can connect and are not having any issues
moving around.

Thanks for the help/advice.

Jeff

Since 10.10.0.0/16 includes 10.10.0.0/24, yes, this is the problem. This case study may give you a solution.

Resolution for VPN server and client using the same IP rangeResolution for VPN server and client using the same IP range. Q1: if both (VPN Client and server) locations have same ip e.g: 192.168.1.0/ , we can't change ...
http://www.chicagotech.net/Q&A/vpn49.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Jeff" <(E-Mail Removed)> wrote in message news:d36sh.1454$(E-Mail Removed) ...
I have a friend that is trying to VPN into my domain server, he can
establish a connection but can not seem to get anywhere else on the system
either by ip address or \\server name.

my domain is set up with 10.10.1.0 255.255.255.0 and his domain that he is
trying to vpn out of is 10.10.0.0 255.255.0.0.

Does this cause an issue? He believes the reason is, is after it connects
that when he either tries to go to the server either by ip address or by
\\name that instead of looking on my Domain to reolve where to go that it is
actually looking for these on his local Domain?

I can see him connected and assigned and ip. Others from different
locations (including myself) can connect and are not having any issues
moving around.

Thanks for the help/advice.

Jeff

He needs to change his Mask to 255.255.255.0
There is absolutely no reason to use 255.255.0.0,...there is no way he is
going to be running 65,280 Hosts on his network.
When he puts his mask back to what it should be everything will be fine
without having to do any headstands & cartwheels to make it work.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

The views expressed are my own (as annoying as they are), and not those of
my employer or anyone else associated with me.
-----------------------------------------------------

"Jeff" <(E-Mail Removed)> wrote in message
news:d36sh.1454$(E-Mail Removed) ...
>I have a friend that is trying to VPN into my domain server, he can
>establish a connection but can not seem to get anywhere else on the system
>either by ip address or \\server name.
>
> my domain is set up with 10.10.1.0 255.255.255.0 and his domain that he
> is trying to vpn out of is 10.10.0.0 255.255.0.0.
>
> Does this cause an issue? He believes the reason is, is after it connects
> that when he either tries to go to the server either by ip address or by
> \\name that instead of looking on my Domain to reolve where to go that it
> is actually looking for these on his local Domain?
>
> I can see him connected and assigned and ip. Others from different
> locations (including myself) can connect and are not having any issues
> moving around.
>
> Thanks for the help/advice.
>
> Jeff
>
>

PHIL,

YOU MAYBE BE CORRECT THAT HE WILL NOT BE RUNNING THAT MANY BUT AS HE WORKS
FOR THE STATE THEY COULD END UP HAVING QUITE A FEW SO CHANGING THAT SUBNETT
IS NOT AN OPTION.

THANKS, FOR THE SUGGESTION.

JEFF


"Phillip Windell" <@.> wrote in message
news:(E-Mail Removed)...
> He needs to change his Mask to 255.255.255.0
> There is absolutely no reason to use 255.255.0.0,...there is no way he is
> going to be running 65,280 Hosts on his network.
> When he puts his mask back to what it should be everything will be fine
> without having to do any headstands & cartwheels to make it work.
>
> --
> Phillip Windell [MCP, MVP, CCNA]
> www.wandtv.com
>
> The views expressed are my own (as annoying as they are), and not those of
> my employer or anyone else associated with me.
> -----------------------------------------------------
>
> "Jeff" <(E-Mail Removed)> wrote in message
> news:d36sh.1454$(E-Mail Removed) ...
>>I have a friend that is trying to VPN into my domain server, he can
>>establish a connection but can not seem to get anywhere else on the system
>>either by ip address or \\server name.
>>
>> my domain is set up with 10.10.1.0 255.255.255.0 and his domain that he
>> is trying to vpn out of is 10.10.0.0 255.255.0.0.
>>
>> Does this cause an issue? He believes the reason is, is after it
>> connects that when he either tries to go to the server either by ip
>> address or by \\name that instead of looking on my Domain to reolve where
>> to go that it is actually looking for these on his local Domain?
>>
>> I can see him connected and assigned and ip. Others from different
>> locations (including myself) can connect and are not having any issues
>> moving around.
>>
>> Thanks for the help/advice.
>>
>> Jeff
>>
>>
>
>

Ethernet efficiency starts to fall off after 250-300 hosts. It doesn't matter
how many machines they have,...they aren't putting 65,280 on a single segment.
It just is not doable. He needs to be the one to decide if it is an option or
not. Let him decide that.

An option is still an option,..even if no one wants to do it.
The right way to do something is still the right way to do something,...even if
no one wants to do it. It is not "on me" if someone doesn't want to listen.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

The views expressed are my own (as annoying as they are), and not those of my
employer or anyone else associated with me.
-----------------------------------------------------

"Jeff" <(E-Mail Removed)> wrote in message
news:1Y8th.1621$(E-Mail Removed) ...
> PHIL,
>
> YOU MAYBE BE CORRECT THAT HE WILL NOT BE RUNNING THAT MANY BUT AS HE WORKS FOR
> THE STATE THEY COULD END UP HAVING QUITE A FEW SO CHANGING THAT SUBNETT IS NOT
> AN OPTION.
>
> THANKS, FOR THE SUGGESTION.
>
> JEFF
>
>
> "Phillip Windell" <@.> wrote in message
> news:(E-Mail Removed)...
>> He needs to change his Mask to 255.255.255.0
>> There is absolutely no reason to use 255.255.0.0,...there is no way he is
>> going to be running 65,280 Hosts on his network.
>> When he puts his mask back to what it should be everything will be fine
>> without having to do any headstands & cartwheels to make it work.
>>
>> --
>> Phillip Windell [MCP, MVP, CCNA]
>> www.wandtv.com
>>
>> The views expressed are my own (as annoying as they are), and not those of my
>> employer or anyone else associated with me.
>> -----------------------------------------------------
>>
>> "Jeff" <(E-Mail Removed)> wrote in message
>> news:d36sh.1454$(E-Mail Removed) ...
>>>I have a friend that is trying to VPN into my domain server, he can establish
>>>a connection but can not seem to get anywhere else on the system either by ip
>>>address or \\server name.
>>>
>>> my domain is set up with 10.10.1.0 255.255.255.0 and his domain that he is
>>> trying to vpn out of is 10.10.0.0 255.255.0.0.
>>>
>>> Does this cause an issue? He believes the reason is, is after it connects
>>> that when he either tries to go to the server either by ip address or by
>>> \\name that instead of looking on my Domain to reolve where to go that it is
>>> actually looking for these on his local Domain?
>>>
>>> I can see him connected and assigned and ip. Others from different
>>> locations (including myself) can connect and are not having any issues
>>> moving around.
>>>
>>> Thanks for the help/advice.
>>>
>>> Jeff
>>>
>>>
>>
>>
>
>