Firewall Wizards mailing list archives
Re: About Port Forwarding, Apache and Firewall Rules
From: jseymour () linxnet com (Jim Seymour)
Date: Thu, 16 Sep 2004 14:25:33 -0400 (EDT)
David Lang <david.lang () digitalinsight com> wrote:
On Thu, 9 Sep 2004, Mister Coffee wrote:
[snip]
Range on ISDN is fairly impressive. I know the range is measured in at least 10's of miles, rather than DSL's 18K/feet (more or less, depending on carrier, speed, etc.)IDSL will go ~30k ft, it's what I have to use at home, at $90/month :-(
[snip]
ISDN is a different story, it is available just about anywhere that normal phone service is available, but useually comes with per-min useage fees
[snip] ISDN has a max. of 18,000 feet, un-repeated. With a mid-span repeater: Theoretically 36,000 feet, but TelCo's are sometimes (?) unwilling to provision a circuit more than roughly 30,000 feet, as the cable runs, from the CO. IDSL is simply DSL-over-ISDN. The two ISDN B channels (64k each) and the D channel (16k) are bonded to create a single 144k IDSL circuit. I don't know whether it's a limitation of IDSL, or risk aversion on the part of DSL CLECs or their resellers, but you'll rarely get an IDSL circuit installed more than 30,000 (cable) feet from the CO. My neighborhood was Project Pronto'd a couple years ago or more. My IDSL circuit runs over LightSpan (fiber) from the CO to a DLC (digital line card) in an SEV (underground sealed environmental vault) for most of the 25,000 feet between me and the CO, and the last 8,000 feet or so is copper. Jim _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
Current thread:
- Re: About Port Forwarding, Apache and Firewall Rules Chuck Vose (Sep 07)
- Re: About Port Forwarding, Apache and Firewall Rules Christopher Hicks (Sep 08)
- Re: About Port Forwarding, Apache and Firewall Rules Jim Seymour (Sep 15)
- Re: About Port Forwarding, Apache and Firewall Rules Mister Coffee (Sep 15)
- Re: About Port Forwarding, Apache and Firewall Rules David Lang (Sep 16)
- Re: About Port Forwarding, Apache and Firewall Rules Jim Seymour (Sep 16)
- Re: About Port Forwarding, Apache and Firewall Rules David Lang (Sep 16)
- Re: About Port Forwarding, Apache and Firewall Rules Christopher Hicks (Sep 08)