Date: Wed, 27 Mar 2002 21:07:39 -0000 From: "G D McKee" <freebsd@gdmckee.com> To: "Martyn Hill" <sysadmin@st-james-snrgirls.w-london.sch.uk>, "Mike Dewhirst" <Dewhirst.M@UCLES.org.uk>, "FreeBSD-questions" <freebsd-questions@freebsd.org> Subject: Re: Cable-modem, dynamic IP, NAT and IPFW Message-ID: <021101c1d5d3$6d6b9f70$c800a8c0@p1000> References: <0B0368CED76DD4118E1200D0B73E9B5D041E9F8D@MAIL1> <000a01c1d5b0$f282bfe0$0a00000a@stjames.net>
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RE: Cable-modem, dynamic IP, NAT and IPFWHi
I had the bright idea of putting a 10 base-t and a 100baset card in my =
box - the 10 for the internet and the 100 for the local LAN - never =
quite got around to switching the FreeBSD box of to put two 100 cards =
in!! FreeBSD just keeps on going - only reboot occasionally after a =
cvsup and a build world!!
To reset the modem - just un plug it - you need to do leave it off for =
approx 30sec to fully reboot it.
If you hard code an ip address into the external lan card of =
192.168.100.2 - can you use a web browser to see 192.168.100.1? If I =
have got the address correct - fairly sure - you should get a web page =
up - this will prove that the card is taking to the cable mode.
Do you get any output in /var/log/message log file? - You haven't got =
any daft firewall rules in there to deny all traffic - which in the =
default in FreeBSD's eyes
Trust this helps?
Gordon
----- Original Message -----=20
From: Martyn Hill=20
To: Mike Dewhirst ; FreeBSD-questions=20
Sent: Wednesday, March 27, 2002 5:00 PM
Subject: Re: Cable-modem, dynamic IP, NAT and IPFW
Mike
Thanks. When you say 'reset' the modem, what did that entail for you? =
You suggest that a power-cycle won't do the job on its own.
I'll post my rc.conf file when I return home.
Martyn.
----- Original Message -----=20
From: Mike Dewhirst=20
To: 'Martyn Hill'=20
Cc: 'questions@freebsd.org'=20
Sent: Wednesday, March 27, 2002 4:42 PM
Subject: RE: Cable-modem, dynamic IP, NAT and IPFW
I don't think that would make a difference - I have a 10Mb card =
working with modem no problem. When I switched over from Win to Unix, =
though, I had t reset the modem (as opposed to off/on).
Could be wrong, of course...=20
Mike=20
> -----Original Message-----=20
> From: Martyn Hill =
[mailto:sysadmin@st-james-snrgirls.w-london.sch.uk]=20
> Sent: 27 March 2002 15:12=20
> To: G D McKee; FreeBSD-questions=20
> Subject: Re: Cable-modem, dynamic IP, NAT and IPFW=20
>=20
>=20
> Gordon=20
>=20
> Thanks for your reply. I'm using an Intel Pro/10 10Mbs NIC -=20
> perhaps going to 10/100 is the solution. When BY came to install=20
> the cable-modem, they installed a 10/100 NIC in a Windows box=20
> which I thought excessive bearing in mind the 512Kbs cable modem=20
> speed.=20
>=20
> Martyn=20
>=20
>=20
> ----- Original Message -----=20
> From: "G D McKee" <freebsd@gdmckee.com>=20
> To: "Martyn Hill" <sysadmin@st-james-snrgirls.w-london.sch.uk>=20
> Sent: Wednesday, March 27, 2002 2:45 PM=20
> Subject: Re: Cable-modem, dynamic IP, NAT and IPFW=20
>=20
>=20
> > Hi=20
> >=20
> > What Ethernet card are you using - I have 10BaseT 3com=20
> 3c5x9 cards and they=20
> > would not connect at all to blueyonder - hooked up a 3com=20
> 10/100 card and=20
> > all was fine.=20
> >=20
> >=20
> > Gordon=20
> >=20
> > ----- Original Message -----=20
> > From: "Martyn Hill" <sysadmin@st-james-snrgirls.w-london.sch.uk> =
> > To: "FreeBSD-questions" <freebsd-questions@freebsd.org>=20
> > Sent: Wednesday, March 27, 2002 2:31 PM=20
> > Subject: Cable-modem, dynamic IP, NAT and IPFW=20
> >=20
> >=20
> > > Hi=20
> > >=20
> > > Can anyone cast any light on the following:=20
> > >=20
> > > I have set up a test-bench installation at home of FreeBSD =
4.5,=20
> > cable-modem (with Blueyonder) with dynamic IP, UserPPP (PPPoE)=20
> > > running NAT, IPFW, BIND, DHCP, Exim, Samba and the Squid=20
> proxy software.=20
> > The purpose behind the install is to avoid long hours=20
> > > spent at school trying out new configurations on an=20
> otherwise working live=20
> > system (static IP, but otherwise similar.)=20
> > >=20
> > > Having read (and tried to digest) the various HowTos and=20
> mailing list=20
> > postings re. configuring for dynamic IP, I'm getting no=20
> > > joy connecting through the cable modem. The NIC MAC=20
> address has been=20
> > registered with BY.=20
> > >=20
> > > My question: Can you guide me to a HowTo that details a=20
> comparable setup=20
> > to the BY setup above, or offer any pointers - I'm sure=20
> > > that I've missed something obvious along the way and have=20
> gotten lost in=20
> > the detail.=20
> > >=20
> > > In particular, configuring IPFW for dynamic IP (I have a=20
> working ruleset=20
> > for fixed IP); which of NATD or UserPPP NAT is=20
> > > preferable (or easier) to configure/use and how best to=20
> configure the=20
> > external NIC using the ISC DHCLIENT software.=20
> > >=20
> > > Rather than forward all my current configuration files,=20
> please could you=20
> > advise which are relevant and I'll provide those.=20
> > >=20
> > > Thanks in advance.=20
> > >=20
> > > Martyn Hill=20
> > > ICT Teacher and IT Co-ordinator=20
> > > St James Independent School=20
> > > London=20
> > >=20
> > >=20
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org=20
> > > with "unsubscribe freebsd-questions" in the body of the =
message=20
> > >=20
> >=20
> >=20
> >=20
>=20
>=20
> To Unsubscribe: send mail to majordomo@FreeBSD.org=20
> with "unsubscribe freebsd-questions" in the body of the message=20
>=20
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<HTML><HEAD><TITLE>RE: Cable-modem, dynamic IP, NAT and IPFW</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2713.1100" name=3DGENERATOR>
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<DIV><FONT face=3DArial size=3D2>Hi</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I had the bright idea of putting a 10 =
base-t and a=20
100baset card in my box - the 10 for the internet and the 100 for the =
local LAN=20
- never quite got around to switching the FreeBSD box of to put two 100 =
cards=20
in!! FreeBSD just keeps on going - only reboot occasionally after =
a cvsup=20
and a build world!!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>To reset the modem - just un plug it - =
you need to=20
do leave it off for approx 30sec to fully reboot it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>If you hard code an ip address into the =
external=20
lan card of 192.168.100.2 - can you use a web browser to see=20
192.168.100.1? If I have got the address correct - fairly sure - =
you=20
should get a web page up - this will prove that the card is taking to =
the cable=20
mode.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Do you get any output in =
/var/log/message log file?=20
- You haven't got any daft firewall rules in there to deny all traffic - =
which=20
in the default in FreeBSD's eyes</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Trust this helps?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Gordon</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dsysadmin@st-james-snrgirls.w-london.sch.uk=20
href=3D"mailto:sysadmin@st-james-snrgirls.w-london.sch.uk">Martyn =
Hill</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3DDewhirst.M@UCLES.org.uk=20
href=3D"mailto:Dewhirst.M@UCLES.org.uk">Mike Dewhirst</A> ; <A=20
title=3Dfreebsd-questions@freebsd.org=20
href=3D"mailto:freebsd-questions@freebsd.org">FreeBSD-questions</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, March 27, 2002 =
5:00=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: Cable-modem, =
dynamic IP, NAT=20
and IPFW</DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D2>Mike</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks. When you say 'reset' the =
modem, what did=20
that entail for you? You suggest that a power-cycle won't do the job =
on its=20
own.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I'll post my rc.conf file when I =
return=20
home.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Martyn.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3DDewhirst.M@UCLES.org.uk =
href=3D"mailto:Dewhirst.M@UCLES.org.uk">Mike=20
Dewhirst</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
title=3Dsysadmin@st-james-snrgirls.w-london.sch.uk=20
href=3D"mailto:sysadmin@st-james-snrgirls.w-london.sch.uk">'Martyn =
Hill'</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A =
title=3Dquestions@freebsd.org=20
href=3D"mailto:'questions@freebsd.org'">'questions@freebsd.org'</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, March 27, =
2002 4:42=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: Cable-modem, =
dynamic IP,=20
NAT and IPFW</DIV>
<DIV><BR></DIV>
<P><FONT size=3D2>I don't think that would make a difference - I =
have a 10Mb=20
card working with modem no problem. When I switched over from Win to =
Unix,=20
though, I had t reset the modem (as opposed to off/on).</FONT></P>
<P><FONT size=3D2>Could be wrong, of course...</FONT> </P>
<P><FONT size=3D2>Mike</FONT> </P><BR>
<P><FONT size=3D2>> -----Original Message-----</FONT> <BR><FONT =
size=3D2>>=20
From: Martyn Hill [<A=20
=
href=3D"mailto:sysadmin@st-james-snrgirls.w-london.sch.uk">mailto:sysadmi=
n@st-james-snrgirls.w-london.sch.uk</A>]</FONT>=20
<BR><FONT size=3D2>> Sent: 27 March 2002 15:12</FONT> <BR><FONT =
size=3D2>>=20
To: G D McKee; FreeBSD-questions</FONT> <BR><FONT size=3D2>> =
Subject: Re:=20
Cable-modem, dynamic IP, NAT and IPFW</FONT> <BR><FONT size=3D2>> =
</FONT><BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> =
Gordon</FONT>=20
<BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> Thanks for =
your reply.=20
I'm using an Intel Pro/10 10Mbs NIC - </FONT><BR><FONT size=3D2>> =
perhaps=20
going to 10/100 is the solution. When BY came to install</FONT> =
<BR><FONT=20
size=3D2>> the cable-modem, they installed a 10/100 NIC in a =
Windows box=20
</FONT><BR><FONT size=3D2>> which I thought excessive bearing in =
mind the=20
512Kbs cable modem</FONT> <BR><FONT size=3D2>> speed.</FONT> =
<BR><FONT=20
size=3D2>> </FONT><BR><FONT size=3D2>> Martyn</FONT> <BR><FONT =
size=3D2>>=20
</FONT><BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> ----- =
Original=20
Message -----</FONT> <BR><FONT size=3D2>> From: "G D McKee"=20
<freebsd@gdmckee.com></FONT> <BR><FONT size=3D2>> To: =
"Martyn Hill"=20
<sysadmin@st-james-snrgirls.w-london.sch.uk></FONT> <BR><FONT=20
size=3D2>> Sent: Wednesday, March 27, 2002 2:45 PM</FONT> =
<BR><FONT=20
size=3D2>> Subject: Re: Cable-modem, dynamic IP, NAT and =
IPFW</FONT>=20
<BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> =
</FONT><BR><FONT=20
size=3D2>> > Hi</FONT> <BR><FONT size=3D2>> ></FONT> =
<BR><FONT=20
size=3D2>> > What Ethernet card are you using - I have 10BaseT =
3com=20
</FONT><BR><FONT size=3D2>> 3c5x9 cards and they</FONT> <BR><FONT =
size=3D2>> > would not connect at all to blueyonder - hooked =
up a 3com=20
</FONT><BR><FONT size=3D2>> 10/100 card and</FONT> <BR><FONT =
size=3D2>>=20
> all was fine.</FONT> <BR><FONT size=3D2>> ></FONT> =
<BR><FONT=20
size=3D2>> ></FONT> <BR><FONT size=3D2>> > Gordon</FONT> =
<BR><FONT=20
size=3D2>> ></FONT> <BR><FONT size=3D2>> > ----- =
Original Message=20
-----</FONT> <BR><FONT size=3D2>> > From: "Martyn Hill"=20
<sysadmin@st-james-snrgirls.w-london.sch.uk></FONT> <BR><FONT=20
size=3D2>> > To: "FreeBSD-questions"=20
<freebsd-questions@freebsd.org></FONT> <BR><FONT size=3D2>> =
>=20
Sent: Wednesday, March 27, 2002 2:31 PM</FONT> <BR><FONT =
size=3D2>> >=20
Subject: Cable-modem, dynamic IP, NAT and IPFW</FONT> <BR><FONT =
size=3D2>>=20
></FONT> <BR><FONT size=3D2>> ></FONT> <BR><FONT =
size=3D2>> >=20
> Hi</FONT> <BR><FONT size=3D2>> > ></FONT> <BR><FONT =
size=3D2>>=20
> > Can anyone cast any light on the following:</FONT> =
<BR><FONT=20
size=3D2>> > ></FONT> <BR><FONT size=3D2>> > > I =
have set up a=20
test-bench installation at home of FreeBSD 4.5,</FONT> <BR><FONT =
size=3D2>>=20
> cable-modem (with Blueyonder) with dynamic IP, UserPPP =
(PPPoE)</FONT>=20
<BR><FONT size=3D2>> > > running NAT, IPFW, BIND, DHCP, =
Exim, Samba=20
and the Squid </FONT><BR><FONT size=3D2>> proxy software.</FONT> =
<BR><FONT=20
size=3D2>> > The purpose behind the install is to avoid long=20
hours</FONT> <BR><FONT size=3D2>> > > spent at school =
trying out new=20
configurations on an </FONT><BR><FONT size=3D2>> otherwise =
working=20
live</FONT> <BR><FONT size=3D2>> > system (static IP, but =
otherwise=20
similar.)</FONT> <BR><FONT size=3D2>> > ></FONT> <BR><FONT=20
size=3D2>> > > Having read (and tried to digest) the =
various HowTos=20
and </FONT><BR><FONT size=3D2>> mailing list</FONT> <BR><FONT =
size=3D2>>=20
> postings re. configuring for dynamic IP, I'm getting no</FONT>=20
<BR><FONT size=3D2>> > > joy connecting through the cable =
modem. The=20
NIC MAC </FONT><BR><FONT size=3D2>> address has been</FONT> =
<BR><FONT=20
size=3D2>> > registered with BY.</FONT> <BR><FONT =
size=3D2>> >=20
></FONT> <BR><FONT size=3D2>> > > My question: Can you =
guide me to=20
a HowTo that details a </FONT><BR><FONT size=3D2>> comparable =
setup</FONT>=20
<BR><FONT size=3D2>> > to the BY setup above, or offer any =
pointers -=20
I'm sure</FONT> <BR><FONT size=3D2>> > > that I've missed =
something=20
obvious along the way and have </FONT><BR><FONT size=3D2>> gotten =
lost=20
in</FONT> <BR><FONT size=3D2>> > the detail.</FONT> <BR><FONT=20
size=3D2>> > ></FONT> <BR><FONT size=3D2>> > > In =
particular,=20
configuring IPFW for dynamic IP (I have a </FONT><BR><FONT =
size=3D2>>=20
working ruleset</FONT> <BR><FONT size=3D2>> > for fixed IP); =
which of=20
NATD or UserPPP NAT is</FONT> <BR><FONT size=3D2>> > > =
preferable (or=20
easier) to configure/use and how best to </FONT><BR><FONT =
size=3D2>>=20
configure the</FONT> <BR><FONT size=3D2>> > external NIC using =
the ISC=20
DHCLIENT software.</FONT> <BR><FONT size=3D2>> > ></FONT> =
<BR><FONT=20
size=3D2>> > > Rather than forward all my current =
configuration=20
files, </FONT><BR><FONT size=3D2>> please could you</FONT> =
<BR><FONT=20
size=3D2>> > advise which are relevant and I'll provide =
those.</FONT>=20
<BR><FONT size=3D2>> > ></FONT> <BR><FONT size=3D2>> =
> >=20
Thanks in advance.</FONT> <BR><FONT size=3D2>> > ></FONT> =
<BR><FONT=20
size=3D2>> > > Martyn Hill</FONT> <BR><FONT size=3D2>> =
> > ICT=20
Teacher and IT Co-ordinator</FONT> <BR><FONT size=3D2>> > > =
St James=20
Independent School</FONT> <BR><FONT size=3D2>> > > =
London</FONT>=20
<BR><FONT size=3D2>> > ></FONT> <BR><FONT size=3D2>> =
>=20
></FONT> <BR><FONT size=3D2>> > > To Unsubscribe: send =
mail to=20
majordomo@FreeBSD.org</FONT> <BR><FONT size=3D2>> > > with=20
"unsubscribe freebsd-questions" in the body of the message</FONT> =
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size=3D2>> > ></FONT> <BR><FONT size=3D2>> ></FONT> =
<BR><FONT=20
size=3D2>> ></FONT> <BR><FONT size=3D2>> ></FONT> =
<BR><FONT=20
size=3D2>> </FONT><BR><FONT size=3D2>> </FONT><BR><FONT =
size=3D2>> To=20
Unsubscribe: send mail to majordomo@FreeBSD.org</FONT> <BR><FONT =
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with "unsubscribe freebsd-questions" in the body of the =
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