Date: Wed, 16 Jun 2004 13:58:36 -0600 From: Jose Hidalgo Herrera <jose@hostarica.com> To: Fangorn <fangorn@o2.pl> Cc: jose@hostarica.com Subject: Re: Multiple_External_IPs+IPFW+arp_proxy+Dummynet+natd_etc Message-ID: <1087415916.87203.9.camel@jose.hostarica.net> In-Reply-To: <1087389772.641.20.camel@desk.myroom.pl> References: <1087389772.641.20.camel@desk.myroom.pl>
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On Wed, 2004-06-16 at 06:42, Fangorn wrote:
> Hello!
>
> FreeBSD 5.2.1, IPFW(2 of course), 1 ext_if, 2 int_ifs, P200MMX, 96MB,
> HDD 2GB
> I have recently set up a router serving and shaping a small network
> +/-20 clients (mostly wireless, but that's not important, as the AP does
> the job).
>
> I do a static ARP, I have quite a simple firewall, of course natd is up
> and running fine. Some pipes and queues pretend to share the traffic
> fairly :). Now my concern is:
>
> 1. What is the best way to assign an external IP (I have 4 available) to
> a LAN client machine?
> 2. How (if at all) it affects traffic shaping?
you can:
1) use the other interface for the DMZ ( but you lose 1 ip for the
router's interface)
2) forward traffic sent to the public ips to private ips
ej.
ipfw add fwd privateip,80 tcp from any to publicip 80 setup
keep-state
You have the same bandwidth, unless you buy more!
>
> I would be greatful for a bunch of ideas and eternally greatful for
> examples of working scripts/firewall rules etc.
>
> Disclaimer: Yes, I did a google research, and found nothing that would
> cover the afformentioned problem. :-) At least nothing else than 'Well,
> you might try this ports thingy, but I don't really know if it helps.'
> ;-D
>
> PS: (or BTW) Maybe someone also has a solution to a problem of sharing
> two external connections in a reasonable way in such a network? Of
> course load-balancing would be desirable, but any working examples are
> welcome.
>
> Thank You for Your patience.
--
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Jose Hidalgo
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jose at hostarica.com
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