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On 22/01/12 20:32, tom wrote: > I've worked at companies where we've had 1600 people behind 1 IPv4 > address and its worked - ftp and all. I've run ~30 websites off one as > well - Apache can do this with its eyes shut. Yeah, this. I've worked at some huge places and it's entirely normal to just have a small pool of outward-facing IPs (v4 flavour) and in even slightly smaller companies, just the one. After all, with 65,535 each of TCP/UDP ports and the lovely RFCs telling us which services should be listening on each of them it's not like your single, externally routable address is going to run out is it? And then there's the Apache virtual servers directives as well, as Tom said. I've had precisely zero problems putting great big clusters of your usual mail/web/shell/VPN servers behind a single IPv4 address. Don't get me wrong, I'm a network guy and the sooner the whole world goes IPv6 the happier I'll be. But it's not really a problem for us mere mortals who don't allocate class A address blocks and handle BGP peering for datacentres... Regards, Mat -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq