Date: Fri, 27 May 2011 09:24:54 +0100 From: Graeme Dargie <arab@tangerine-army.co.uk> To: "'questions@freebsd.org'" <questions@freebsd.org> Subject: RE: RAM needed for DHCP + router? Message-ID: <0EE458C34045A44DBC2CA2DC5CEB42B521F2C52159@mercury.universe.galaxy.lcl> In-Reply-To: <alpine.BSF.2.00.1105262106460.9461@tripel.monochrome.org> References: <23504_1306456431_4DDEF16F_23504_3860_1_D9B37353831173459FDAA836D3B43499BF89C377@WADPMBXV0.waddell.com> <alpine.BSF.2.00.1105262106460.9461@tripel.monochrome.org>
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-----Original Message----- From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd-questions@f= reebsd.org] On Behalf Of Chris Hill Sent: 27 May 2011 02:16 To: Gary Gatten; Chuck Swiger Cc: 'questions@freebsd.org' Subject: Re: RAM needed for DHCP + router? On Thu, 26 May 2011, Gary Gatten wrote: > Your biggest consumers would be FBSD itself and the routing tables. I=20 > *think* full internet routing tables are still less than 512MB, (google=20 > to check), so unless you have more routes than that - 512MB may work,=20 > 1GB most likely will. Too many unknowns, like; is this ipv4 only or 6=20 > and 4 routes? Tweaked/minimal kernel, etc. Sorry, forgot to mention: inet4 for now, probably mixed with v6 in years=20 to come. GENERIC kernel if at all possible (trying to minimize maintenance= =20 and general fussiness level). And in reponse to Chuck, > How many DHCP leases and NAT clients? At any one time, probably dozens (maybe hundreds) of leases and hundreds=20 (maybe thousands) of NAT clients, but not tens of thousands. Leases and=20 NAT clients will come and go on a daily or weekly basis as equipment is=20 tested, configured and shipped out. > ----- Original Message ----- > From: Chris Hill [mailto:chris@monochrome.org] > Sent: Thursday, May 26, 2011 06:46 PM > To: FreeBSD Questions List <questions@freebsd.org> > Subject: RAM needed for DHCP + router? > > Hello list, > > I'm looking to build a NAT / DHCP box for a lab network for my company. M= y > question is, how do I estimate the amount of RAM the machine will need? > > This box will be running isc-dhcpd, doing NAT either via natd or pf, and > not much else. I expect the amount of traffic (throughput) to be very > small, but the address space involved is quite large, at least by my > standards. It seems to me that this will require potentially large amount= s > of memory for routing tables, etc., but not much disk. > > I'll be installing the latest -RELEASE; 32-bit if I can, 64-bit if I must= , > depending on how much memory it looks like I'll need. I may also install > webmin for the benefit of my computer-literate-but-not-unix-savvy > coworkers. > > Thanks! > > > --=20 > Chris Hill chris@monochrome.org > ** [ Busy Expunging </> ] --=20 Chris Hill chris@monochrome.org ** [ Busy Expunging </> ] _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org= " If you just want a router / firewall you might want to look at pfsense, I a= m pretty sure it will cover all the things you want. http://www.pfsense.org/index.php?option=3Dcom_content&task=3Dview&id=3D52&I= temid=3D49=20 that gives some guides on hardware spec for given parameters. Regards Graeme
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