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Why not use a VPN?  This way the client always uses the internal IP?

Just a thought.

Cheers,


Evan Brown wrote:
> There is no orange zone, we have 1 windows server that handles dhcp, 
> source safe ( source code control ) and dev databases. When we are all 
> in the office this isn't a big deal but when we have to go out of the 
> province or whatever to install software or whatever we have to use 
> source offsite which interacts with our source safe install. Before we 
> can go offsite you have to do a get on all the source you will be 
> working on thru source offsite because we've discovered that it causes 
> problems if we use source safe's client and just try to switch to source 
> offsite's client. They play together but they don't like to be swapped 
> around. Source offsite was originally registered to a certain ip and it 
> uses that to create some ID that is used when it locks code for check 
> out or whatever. If we check things out locally with offsite and hit the 
> server from 192.168.xxx.xxx then the ID is different when we hit it from 
> the red zone 205.xxx.xxx.xxx  sooo we need to be able to hit that red 
> zone ip from the green to get around these problems. I know next to 
> nothing about configuring iptables and need a fairly hand holding 
> experiance. I've been cruising around the forum form smoothwall and 
> google and I came up with that example but I'm not sure about it does or 
> where in the file I insert it.
> 
> Evan
> 
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>> Its funny I am having the same issue with one of my clients (only they
>> have an expensive Sonicwall appliance).  The solution for them was to
>> have a host entry on the proxy server point to the internal IP, which
>> worked fine as theirs was a web app.
>>
>> For you, the iptables code below looks like it might work, but iptables
>>  can mangle the packets which may still break your application (if there
>> is some sort of encryption or authentication key, NAT may be of no
>> help), I would need more information about your specific needs to be
>> able to help.  Do you have an Orange (DMZ) network set up?  This might
>> not be a bad approach, if this app resides in the DMZ, then everyone
>> sees the same IP.  Actually this is the point of a DMZ.
>>
>> On another, mostly unrelated note, I have been impressed with pfsense
>> (http://www.pfsense.org) a fork of MoNoWall, but pf is a different beast
>> from iptables altogether (it is the BSD equivalent to netfilter aka
>> iptables).
>>
>> Evan Brown wrote:
>>   
>>> I found this on the smoothwall site in the forums and since I know 
>>> nothing about iptables, does this look like it will work?
>>>
>>> /Hi, i download and install Smoothwall 2 Express , only test the smooth. 
>>> with
>>> a green and orange configuration ISDN and DSL is disable , via web 
>>> administration put forwardings from GREEN to ORANGE zone and these rules 
>>> not working , via ssh execute iptables -t nat -L and i dont view my 
>>> rule.... but if i edit
>>> the rc.firewall.up and put manually the rules
>>>
>>> "/sbin/iptables -t nat -A PREROUTING -p tcp -i $GREEN_DEV -d 10.1.1.229 
>>> --dport 23 -j DNAT --to 192.168.77.2:23 "
>>> "/sbin/iptables -A FORWARD -p tcp -i $ORANGE_DEV -d 192.168.77.2 --dport 
>>> 23 -j ACCEPT"
>>>
>>> /Evan
>>>
>>> the forward work and when execute iptables -t nat -L i view my rule, and 
>>> Then
>>>     
>>>> Thats the nature of the beast. I've seen this happen on a number of 
>>>> systems, including mine -- m0n0wall.
>>>> I don't think IPCop has this flaw though.
>>>>
>>>> AFAIK, there is no way around it; of course, I could just be blowing 
>>>> smoke.
>>>>
>>>> Out of curiosity, why can't you just use the local IP? Why do you need 
>>>> to use the remote one?
>>>>
>>>> On 9/20/06, *Evan Brown* < [EMAIL PROTECTED] 
>>>> <mailto:[EMAIL PROTECTED]>> wrote:
>>>>
>>>>     Hi
>>>>
>>>>     I'm not sure if anyone is experienced with the Smoothwall fire
>>>>     wall but
>>>>     I have one setup and running well although I have a small problem
>>>>     from a
>>>>     usability stand point. I need to connect from my green zone to the red
>>>>     zone using the red zone IP address. We are currently port forwarding
>>>>     from red to green and that works fine outside of the lan but when
>>>>     we on
>>>>     the lan we can't hit the red zone ip. Any help would be appreciated.
>>>>
>>>>     Evan Brown
>>>>
>>>>       
>>   
> 
> 
> 
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