[Help] Understanding subnets better

biatche · May 16, 2007

It's of related to OpenVPN. Hoping a network guru could explain a thing or two.

I'm trying to understand something about /30 or 255.255.255.252. Say, I'm 10.10.0.192/30 and my ip is 10.10.0.193. How is it that I'm able to ping 10.10.0.1? I thought I'm only able to connect to 10.10.0.193-194?

(9:17a) [pekster] Becasue 10.10.0.1 is the IP that the server uses: the /30 is required for compatability with Windows clients, because they don't support p-t-p configurations of the adapter like Linux/Unix does
(9:19a) (biatche) ok, I can understand the english part of it, but I don't get it technically how that's allowed
(9:20a) (biatche) 10.10.0.1 isnt even my gateway.
(9:20a) [pekster] If you're using a /30 on a tun setup of 10.10.0.192/30, then isn't the OpenVPN server using 10.10.0.1?
Click to expand...

I still don't get it I've been reading these guides on tcp/ip and subnets... it mentioned nothing about connectivity with such, I can't really make out how that works :<

Anyone mind explaining?

GS2 · May 17, 2007

Says Linux, but TCP/IP is TCP/IP whatever flavour your system

http://www.aboutdebian.com/network.htm

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[Help] Understanding subnets better

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