Blocking Internal IPs???!!!

We have just given an incredible amount of money to Microsucks... something that I usually would NOT condone- in order to play online games with our friend here on base.
Our ISP is the ONLY One in the world we have ever heard of or can find who BLOCKS internal ip addresses from seeing each other.
Why? They say security.This is complete bollox, of course. There are keeping us secure from a handful of other on base military users? I am severely pissed off. The reason they are in no danger of losing any business from this? The US Government was nice enough to give TKS a monopolized contract for all cable and internet services on base. It goes beyond that.... If we wanted to switch to TKS DSL? No way. Out of the question. They have a contract to provide just certain services to certain homes. It's slow cable, medium cable or fast cable for our house. Such a wide variety of options! NOT.
Wanna get a Sky box and watch British TV? Tough titty.
The Germans have yet to catch on to the concept of customer service- especially within major companies. They feel you have no choice, so why should they work for your business...
I am posting the letter here in hopes of it spreading out there that TKS needs to fix this problem... even if it takes people who live on base bitching at them until their ears bleed to do it.
If you happen to be a military member in Germany- join the fight. This company is a division of Verizon. In the states, they believe in customer service- lest you take your money to Sprint. You can find the contact form for TKS HERE. Write them and tell them... well... that it is asinine to "protect" us from the guy next door.

We have purchased $200.00 worth of software to be able to play games online with our friend who lives a few buildings down the way from us here on Vogelweh. We have called your service representatives regarding the blocking of internal IP addresses pinging each other, and been told that there is absolutely nothing that can be done, as it is TKS policy to block these IP addresses. We were also informed by the representative that TKS receives many calls regarding this matter from unhappy customers on base.
As of yet I have not been able to find another single ISP in the WORLD that does this, for security reasons or otherwise.
It is the user's responsibility to protect his computer from attacks, and those attacks can come from outside your net as well as from within. If the only reason to block internal IP addresses is to protect the security of the end user's computers, then I feel you are censoring the users who are least likely to be at risk from one another, as we are all military here. As the US Military we are reminded DAILY of the importance of anti-virus and anti piracy software. It is not TKS's responsibility nor right to block my IP from anyone else. That, if anyone's, is my job.
Your blocking is protecting us from each other?... a maximum of approximately 10,000 other users?... and the rest of the internet is free to ping our IP addresses? It is a means without an end, and frankly, nothing but an inconvenience, and a waste of the money we, as users spend on software offered to us at the base exchanges to play games. If there was another cable company in the world that did this, I am sure their business would suffer for it. It is unfair that TKS uses it's on base monopoly to govern our internet usage.
I would like to know how we get this policy and blocking changed. Whose decision is/was it to implement it in the first place? What would TKS require of the users to change the policy? Please do not write me back and placate me with a simple answer and tell me there is nothing to be done. I require a name, an action... something that can be done, as I know I am not the only person on base who has run across this problem, nor made a complaint.
By the time we leave Germany we will have paid TKS over ten thousand dollars for service. I would like my money's worth, and the self determination to protect my own computer from other users... and use my computer to play games online with other users; even if you think that they are a risk living right next door.