TDS.Net blocking IP traffic within DSLAM

Author	All Replies
Metanis join:2007-03-22 Medford, WI	TDS.Net blocking IP traffic within DSLAM 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! Thanks! -Metanis (a local PC and Network tech in central WI)
	to forum · permalink · 2012-12-31 17:39:30 ·
tschmidt Premium,MVM join:2000-11-12 Milford, NH kudos:8 Reviews: ·G4 Communications ·Fairpoint Commun.. ·Hollis Hosting	Sounds reasonable - most likely port isolation to keep customers from inadvertently connecting to one another. I assume there is nothing special about having a static IP other then since the address never changes will be able to configure firewall rules. /tom
	to forum · permalink · 2012-12-31 18:37:24 ·

John Galt Forward, March Premium join:2004-09-30 Happy Camp kudos:5	reply to Metanis How much do they charge for a static IP addy? If they are using it for security, then it is probably worth it.
	to forum · permalink · 2012-12-31 18:40:29 ·

Broadband Tech > General Questions > TDS.Net blocking IP traffic within DSLAM