Greenwood WI, a small town with probably a single TDS DSLAM for the entire area. One block of IP addresses with a 255.255.252.0 netmask.
My customer: 2 locations with TDS DSL service. Both locations using TDS-supplied DSL Modem & Switch hardware (Actiontec specifically). Both locations are using Dynamic WAN config right out of the box. Both sites connect to the Internet with zero problems.
1 location is the office. 1 location is the shop. 3 miles apart.
Shop has only an IP Camera for remote monitoring. I setup using DynDNS service and works like a champ until last week. TDS changes security configuration in their DSLAM blocking all traffic that originates and terminates within the same DSLAM. Cannot do HTTP or ICMP between the points on the same network address block.
Still works like a champ from any other IP address in the world!
TDS Tech Support says the customer needs to buy a static address because their router security profile doesn't allow traffic across Dynamic ports within the same DSLAM/Router.
Any thoughts? I think they are just extorting the customer for the extra money for the static IP. Or maybe they are trying to stop MagicJack usage in the rural area?
I would just switch one site or the other to another ISP except there would is only satellite available.
Posted here because no other board seems appropriate!
-Metanis (a local PC and Network tech in central WI)