Date: Tue, 16 Oct 2001 12:14:58 +0400 From: "Nickolay A.Kritsky" <nkritsky@internethelp.ru> To: "Yuri Muhitov" <muhitov@kostasoft.spb.ru> Cc: freebsd-security@FreeBSD.ORG Subject: Re: Using IPFW with dynamic IP Message-ID: <4263631096.20011016121458@internethelp.ru> In-Reply-To: <2E8E747BA4D4994CB49D56AF57F1728208B28B@adv.KOSTASOFT.kostasoft.spb.ru> References: <2E8E747BA4D4994CB49D56AF57F1728208B28B@adv.KOSTASOFT.kostasoft.spb.ru>
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Hello Yuri,
Tuesday, October 16, 2001, 11:51:43 AM, you wrote:
YM> Hi all!
YM> I use dial-up and my ISP assigns IP addresses dynamically.
YM> How can I compose IPFW rules?
YM> 1. Which variable can I use in IPFW configuration script to designate my
YM> dynamic IP?
YM> 2. Can I call my IPFW configuration script automatically when dynamic IP is
YM> assigned?
YM> All manuals which I have describe IPFW configuration using static IP.
YM> Any help is highly appreciated.
YM> Yuri.
add following lines in your /etc/rc.firewall script:
if [ "x$external_ip" != "x" ]
#here come all Internet-related rules
fi
after establishing dial-up connection and aquiring dynamic ip, call
`external_ip = dynamic_ip ; export external_ip ; /bin/sh /etc/rc.firewall'
Hope that helps
;-------------------------------------------
; NKritsky
; SysAdmin InternetHelp.Ru
; http://www.internethelp.ru
; mailto:nkritsky@internethelp.ru
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