Hi All AND Tom!

On 30/11/2013 19:46, Tom Eastep wrote:
> On 11/29/2013 5:14 AM, Angela Williams wrote:
>> Hi All!
>>
>> I have a happy shorewall user who needs something that should quite
>> simple but for the life of me I just cannot figure it out! Well other
>> than a snat rule!
>>
>> Two users on the internal network need to make RDP connections to the
>> parent companies Terminal Server on a non standard port. Needless to say
>> the two external ip address they will be allocated are available and
>> they will both connect to the same remote ip address!
>>
>> Two internal user are 192.168.1.101 and 192.168.1.193 and need to snat
>> out on ip's 206.205.204.203 and 206.205.204.204 respectively and be
>> limited to access port 3399 on remote ip 223.224.225.226
>>
>> The customer is out in the boon-docks and only has a 1M internet
>> connection and with over 200 users bandwidth is tight. Normal masq is
>> limited to a few users. I have two simple nat rules that allow two
>> server unrestricted access. The rest of the user are controlled through
>> squid.
>>
>> All ideas of how to achieve the above would be welcomed!
>
> /etc/shorewall/rules:
>
> ACCEPT        loc:192.168.1.101,192.168.1.193 net:<RDP ip>    tcp     3399
>
> /etc/shorewall/masq
>
> <external if>:<RDP ip>        192.168.1.101   206.205.204.203
> <external if>:<RDP ip>        192.168.1.193   206.205.204.204
>
> Where:
>
>       <external if> is the firewall's external interface
>       <RDP ip> is the IP address of the RDP server

Wow the solution that just works! We have a happy user!

It's only in retrospect that it all makes sense! I just kept trying to 
figure out a solution with SNAT in the masq file!

Thanks a mil Tom!

Ang


-- 
Angela Williams
angierfw at gmail dot com
Linux/Networking Hacker
Blog http://angierfw.wordpress.com

Smile! Yeshua Loves You!


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