Date: Fri, 13 Oct 2000 19:16:23 +0200 From: Gerhard Sittig <Gerhard.Sittig@gmx.net> To: freebsd-security@FreeBSD.ORG Subject: Re: Dynamic rc.firewall Message-ID: <20001013191623.C25237@speedy.gsinet> In-Reply-To: <5.0.0.25.2.20001013032255.00a8ee40@127.0.0.1>; from redwards@meccamediagroup.com on Fri, Oct 13, 2000 at 03:33:09AM -0600 References: <5.0.0.25.2.20001013032255.00a8ee40@127.0.0.1>
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On Fri, Oct 13, 2000 at 03:33 -0600, Rolf Edwards wrote:
>
> How can I have rc.firewall automatically pull in ip, netmask
> and network numbers from the currently configured interfaces.
>
> Lets say I was to supply 'xl0' and have it extract the
> information from ifconfig. I started a perl program, but I
> don't have enough documentation available at the moment to
> actually extract the data from what is returned.
I don't know whether ipfw has a similar "alias", but in ipf
(which is available in FreeBSD, too) you can specify address
0.0.0.0/32 in your rules when you mean "my current address on
this interface". Just make sure to issue "ipf -y" whenever the
interface address changes (ppp.linkup or the appropriate dhcp
client hook).
virtually yours 82D1 9B9C 01DC 4FB4 D7B4 61BE 3F49 4F77 72DE DA76
Gerhard Sittig true | mail -s "get gpg key" Gerhard.Sittig@gmx.net
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