[isalist] Re: Error establishing a VPN to the ISA server

http://www.ISAserver.org
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But not my SQL servers ;)

t


On 6/28/06 6:27 AM, "Jim Harrison" <Jim@xxxxxxxxxxxx> spoketh to all:

> Now I wonder for yur BAC (too low?)
> RPC/HTTP gets yu the whole Exch client feature set; mail, calendaring, pub
> folders, etc...
> 
> ________________________________
> 
> From: isalist-bounce@xxxxxxxxxxxxx on behalf of Thor (Hammer of God)
> Sent: Tue 6/27/2006 11:06 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Error establishing a VPN to the ISA server
> 
> 
> 
> http://www.ISAserver.org <http://www.isaserver.org/>
> -------------------------------------------------------
>  
> Yeah, I figured you didn't see that bit about the hotel net on the same sub
> as the internal. ;)
> 
> RPC/HTTP is indeed the way to go for mail only, but I gotta tell ya- I
> always carry my little linksys router with me just in case I have to do
> "real" work while on a conflicting network, which unfortunately, is
> happening to me more and more these days.  The thing is tiny, and there is
> no configuration at all needed.  Just power, plug, done.  It's also nice to
> have that little extra bit of distance from the other shmucks on the hotel
> network.
> 
> 
> t
> 
> 
> On 6/27/06 10:41 PM, "Jim Harrison" <Jim@xxxxxxxxxxxx> spoketh to all:
> 
>> You're right - it can't work; when the VPN client resolves an "internal" name
>> to an "internal" IP; it'll think it's local and send it to the hotel net.
>> 
>> RPC/HTTP, bro - that's the only way around this.  Don't waste the flight time
>> unless you can configure this from the hotel.
>> 
>> ________________________________
>> 
>> From: isalist-bounce@xxxxxxxxxxxxx on behalf of Thor (Hammer of God)
>> Sent: Tue 6/27/2006 8:51 PM
>> To: isalist@xxxxxxxxxxxxx
>> Subject: [isalist] Re: Error establishing a VPN to the ISA server
>> 
>> 
>> 
>> http://www.ISAserver.org <http://www.isaserver.org/>
>> <http://www.isaserver.org/>
>> -------------------------------------------------------
>> 
>> Because the destination IP is considered "local" traffic.  I won't go down
>> the VPN in the first place.  As it happens, the local subnet on the hotel's
>> ethernet is the same number scheme (192.168.110.x) as in the client's own
>> local LAN.  The SBS box's IP is the same IP as the local hotel's default
>> gateway.  Even with the VPN connected, when guy tries to hit the SBS box,
>> and it resolves to 192.168.110.2, the request will be sent directly to the
>> gateway, not down the VPN, because that's a "local" address.
>> 
>> That's why I'm confused on how Jim and Tom's "change the VPN assignment"
>> works... But I'm obviously missing something- that or Jim and Tom are
>> hitting the sauce a bit early ;)
>> 
>> t
>> 
>> 
>> On 6/27/06 8:39 PM, "Mark Morgan" <MMorgan@xxxxxxxxxxxxxxxxxxxxx> spoketh to
>> all:
>> 
>>> http://www.ISAserver.org <http://www.isaserver.org/>
>>> <http://www.isaserver.org/>
>>> -------------------------------------------------------
>>> 
>>> If your not using split tunnelling which it shouldn't be then why not?  that
>>> should force all traffic to go through the tunnel shouldn't it??
>>> 
>>> Mark Morgan
>>> Sent Via WM-5 enabled PPC
>>> 
>>> -----Original Message-----
>>> From: "Thor (Hammer of God)" <thor@xxxxxxxxxxxxxxx>
>>> To: "isalist@xxxxxxxxxxxxx" <isalist@xxxxxxxxxxxxx>
>>> Sent: 06/27/06 20:14
>>> Subject: [isalist] Re: Error establishing a VPN to the ISA server
>>> 
>>> http://www.ISAserver.org <http://www.isaserver.org/>
>>> <http://www.isaserver.org/>
>>> -------------------------------------------------------
>>> 
>>> The problem isn't the VPN client subnet-  The remote SBS box is on the same
>>> logical subnet as the "local" network the guy is on at the hotel, so when he
>>> tries to go to 192.168.110.2, it's the "local" gateway.  Changing the VPN
>>> Client subnet doesn't really do anything here...
>>> 
>>> t
>>> 
>>> 
>>> On 6/27/06 8:04 PM, "Jim Harrison" <jim@xxxxxxxxxxxx> spoketh to all:
>>> 
>>>> http://www.ISAserver.org <http://www.isaserver.org/>
>>>> <http://www.isaserver.org/>
>>>> -------------------------------------------------------
>>>> 
>>>> Use RRAS or ISA 2004 settings to assign VPN clients an IP from a different
>>>> subnet.
>>>> So long as the internal clients use the SBS as the last hop, it'll work
>>>> fine.
>>>> 
>>>> Sent via WM5-enabled PPC-phone
>>>> 
>>>> -----Original Message-----
>>>> From: "Glenn P. JOHNSTON" <glenn.johnston@xxxxxxxxxxx>
>>>> To: isalist@xxxxxxxxxxxxx
>>>> Sent: 6/27/06 19:13
>>>> Subject: [isalist] Error establishing a VPN to the ISA server
>>>> 
>>>> http://www.ISAserver.org <http://www.isaserver.org/>
>>>> <http://www.isaserver.org/>
>>>> -------------------------------------------------------
>>>> 
>>>> Hi,
>>>> 
>>>> Maybe, maybe not directly and ISA question, and I've posted this in an SBS
>>>> forum as well, but you people are pretty bright & I thought you might have
>>>> some worth while input on this.
>>>> 
>>>> One of my clients has an issue with VPN tunnel. This has been inplace since
>>>> Sunday afternoon, but they only rang me this morning.
>>>> 
>>>> One of their directors is at a week long conference, and the Hotel where he
>>>> is
>>>> staying, has provides an in room broadband service.
>>>> The BroadBand in the hotel is using a 192.168.110.0/24 address range, the
>>>> internal address of the clients network at the office is also a
>>>> 192.168.110.0/24 range.
>>>> 
>>>> The VPN tunnel  establishes fine, and the VPN connector on his notebook get
>>>> an
>>>> address, of course, in the 192.168.110.100 to 192.168.110.199 range of the
>>>> DHCP server on the SBS server.
>>>> 
>>>> Once the tunnel is established, he can acess nothing on the SBS. This is to
>>>> be
>>>> expected as the address ranges are the same, does anyone have any bright
>>>> idea's on how to get around this. The Director is yelling and screaming
>>>> about
>>>> not being able to get his e-mail.
>>>> 
>>>> Unfortunately he is out out direct reach in another state, and has very
>>>> little
>>>> tolerance for such problems.
>>>> 
>>>> Regards
>>>> Glenn
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