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Use a VPN without it taking over the network
Authored by: kshetline on Sep 12, '05 03:26:31PM
No routing magic required. If the DNS has failed to propogate, you can always go to the dyndns.org page and read the VPN IP number.
No, no, no...

Before I did any hacking or playing with VPN settings at all, reaching my Mac at home was never the issue. I was indeed reaching the Mac -- I could see the packets coming in. The problem lay completely in having the computer at home respond to an external request via the correct route. Imagine that the speaker in the handset of your telephone was hooked up to one telephone number, but the microphone to a different telephone number. Someone calls you, you pick up the phone, you can hear the other guy saying "Hello? Hello?", but he never hears a word you say -- that's what my computer was doing with incoming and outgoing packets.

Further, I could never get back to my computer via the VPN WAN IP, because that IP would be for a whole block of computers at my company, not for my one specific computer, and nothing would reach my home computer via the VPN LAN IP which I'm assigned while connected to the VPN -- not past the company firewall and internal routing.

If you're suggesting that I actually try to make my domain name map to a LAN IP, rather than a WAN IP -- a LAN IP which is only meaningful on my company's network -- that's just weird. I don't even know if that would work -- if dyndns.org would accept a LAN IP and propagate it -- but if it did work, I'd have a domain name which was only useful for people on the company LAN. Anyone else would get the same IP address using my domain name, numerically speaking, but either nothing would be there to respond at that IP for them, or a random server which happened to have the same LAN IP on a different LAN would respond.

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Use a VPN without it taking over the network
Authored by: ferret-slayer on Sep 18, '05 12:42:49PM
if it did work, I'd have a domain name which was only useful for people on the company LAN.

It does work. You're the only one who would want to use it. It doesn't matter if it's useful to others. (They can use your original dyndns.org name to find your router.)

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