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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Mark Cubitt wrote: > > my question is what sort of power do you think I would need to cover say 2 > miles 360 degrees and the same question for 5/6 miles, It depends on the geography, so no one can say, if you have good line of sight it may be done with one reasonable antenna in the middle, and a few directional antennas at the fringes. I suspect for 5 to 6 miles radius some points would have some line of sight problems, unless you happen to live in a town that is beautifully sat in the middle of one very regular valley (big chunks of Exeter can see each other very nicely for example). I live in a hollow (you wouldn't notice except when it is stormy) but running wireless to Exmouth of Exeter will require us to befriend someone in a higher place ;-) > also how insecure are > these connections, are we talking about having a VPN capable firewall at > each end and making an IPSec tunnel or can I just rely on the inbuilt > security. It is a LAN, treat it like a LAN connection. The standard WEP encryption doesn't prevent determined attackers connecting to the LAN, as a determined attacker can eventually decrypt the "shared secret". That said a determined enough attacker can probably connect to the LAN in most buildings that don't have aggressive security policies. Certainly I've had ample opportunities at my GPs surgery to insert my own access if I'd wanted. A few seconds unattended for any unsearched visitor is all it takes to insert the relevant device. Yes WLAN is probably slightly easier, but what are you defending against? > also would my friends have to have a similar set-up to me, or would a > Wireless Access Point be enough. They could probaby use Wireless Access cards, and not even need WAPs, although with the WAP bridging you could probaby design a more robust system with less big antennas. -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQE/JPOoGFXfHI9FVgYRAuiNAKCnoLZM4C2HzfoqX7n24E5uDXbGVwCbBofn zK9Ck1333QaqXUsHizFWIss= =4Sjz -----END PGP SIGNATURE----- -- The Mailing List for the Devon & Cornwall LUG Mail majordomo@xxxxxxxxxxxx with "unsubscribe list" in the message body to unsubscribe.