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List:       dhcp-client
Subject:    Re: why bootp with dhclient?
From:       Anthony Ewell <aewell () gbis ! com>
Date:       2002-04-08 0:17:36
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Charles R. Anderson wrote:
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> 
> 
> On Sun, Apr 07, 2002 at 04:29:17PM -0700, Anthony Ewell wrote:
> aewell>      Packet log: dsl-out DENY eth1 PROTO=17 216.82.xxx.yyy:68 
> aewell> 216.82.xxx.zzz:67 L=328 S=0x00 I=30030 F=0x0000 T=64 (#15)
> aewell> Anyone have any idea why bootp would even care?  I thought
> aewell> it was turned off when dhclient was active!
> 
> DHCP is basically BOOTP with extensions, therefore, the packet format is
> mostly the same and uses the same port numbers.  If you are using
> dhclient to acquire an IP address from your ISP, you need to allow those
> packets through the firewall.  They must be allowed through even after
> the initial address is acquired, since DHCP must renew the address
> periodically.
> 

Hi Charles,

    Oh Poop!  :(

    Rechecking my chains, I am allowing "bootpc" out and "bootps" in,
but to the wrong chain (input and output, instead of dsl-in and
dsl-out).  Crap.  At least it is an easy edit!  :)

Many thanks,
--Tony



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