I'm not sure if this is too low-level an answer, but... Let's say you wanted to split your /22 into two /21s. Instead of configuring the LAN interface with the /22, you could configure the LAN interface with the first /21 network, and create an OPT1 interface and configure it with the second /21.
Suppose you have obtained 10.10.8.0/22. (Pretend it's publicly-routable address space for this explanation.) Your provider has agreed to route that netblock for you. (Regardless of which one of you advertises it.) Your provider might assign 192.168.255.252/30 as the link to you, using .253 for their end and .254 for your end. Your WAN address will then be 192.168.255.254/30, your default gw would be 192.168.255.253. Suppose you needed to split your /22 into four (traditional class "C") /24s. You might configure the LAN interface as 10.10.8.0/24, OPT1 as 10.10.9.0/24, OPT2 as 10.10.10.0/24, and OPT3 as 10.10.11.0/24. Not sure if that's the level of example you're looking for or not... -Adam Thompson athom...@c3a.ca ________________________________________ From: Chris Flugstad [ch...@cascadelink.com] Sent: October-04-10 18:32 To: support@pfsense.com Subject: Re: [pfSense Support] How do I break down a /22 into smaller subnets to use behind(LAN) side of my pfsense box I know how to make them smaller, but don't i need to set the smaller subs in pfsense? i wasnt specific i guess. i know what smaller subnets would look like, but i'd think id have to set them up in pfsense, so I am asking something in which I havent done before and therefor am lost ;) -chris On 10/4/2010 4:23 PM, David Burgess wrote: > On Mon, Oct 4, 2010 at 5:19 PM, Chris Flugstad<ch...@cascadelink.com> wrote: > >> -how to i break up the large block into smaller blocks > Like this? > > http://www.vlsm-calc.net/ > > db > > --------------------------------------------------------------------- > To unsubscribe, e-mail: support-unsubscr...@pfsense.com > For additional commands, e-mail: support-h...@pfsense.com > > Commercial support available - https://portal.pfsense.org > --------------------------------------------------------------------- To unsubscribe, e-mail: support-unsubscr...@pfsense.com For additional commands, e-mail: support-h...@pfsense.com Commercial support available - https://portal.pfsense.org --------------------------------------------------------------------- To unsubscribe, e-mail: support-unsubscr...@pfsense.com For additional commands, e-mail: support-h...@pfsense.com Commercial support available - https://portal.pfsense.org
