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LDP/howto/docbook/Cable-Modem.sgml
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@ -16,8 +16,8 @@
<revhistory>
<revision>
<revnumber>v4.24</revnumber>
<date>August 23, 2000</date>
<revnumber>v4.25</revnumber>
<date>September 2, 2000</date>
<authorinitials>vv</authorinitials>
<revremark>
A lot of additions and updates
@ -184,7 +184,7 @@ newsgroup such as comp.os.linux.setup or comp.os.linux.networking.
<!-- S e c t i o n - - - - - - - - - - - - - - - B r e a k e r -->
<sect2 id="mediaone">
<title id="mediaone.title">MediaOne Express</title>
<title id="mediaone.title">AT T (formerly MediaOne)</title>
<para>
MediaOne Express is a Internet cable service provided by MediaOne. The
@ -218,6 +218,17 @@ this:
ifconfig eth0 hw ether 00:23:56:74:25:12
</programlisting>
<para>
Additional notes by Peter Zurich:
</para>
<para>
Pump will not work without
specifying the hostname ("-h fubar") on the command line. It
doesn't seem to matter what exactly you give it as the hostname, as
long as you give something.
</para>
<para>
Information about MediaOne Service can be found at
<ulink url="http://www.mediaone.com">http://www.mediaone.com</ulink>.
@ -567,13 +578,34 @@ with dhclient version 2.0. I added the following line to my
/etc/dhclient.conf: send host-name "cx803168-a"; Where cx803168-a is the
hostname I've been assigned. It is listed on the purchase order.
</para>
</sect3>
<para>
Information about @Home Service can be found at
<ulink url="http://www.home.com/">http://www.home.com/</ulink>.
</para>
</sect3>
<sect3>
<title>Notes from Connecticut, USA</title>
<para>
Information provided by John Cusick <email>JCusick@SPELLNET.com</email>.
</para>
<para>
In Hartford, Connecticut, TCI (now AT T) is issuing a Farallon PnP ISA
Ethernet card. This card may be detected with the isapnp tools or jumpered.
The info is on Farallon's website for this card. It is NE2000 compatible.
</para>
<para>
@HOME also supplies a PCI version, a PCMCIA card or a 10/100 USB card. I
have no information on these card, yet :-) A static IP is given, or you
may connect with a DHCP client. I am using the static address
and experienced no problem. The whole setup took less than 1 hr including
basic IP_MASQ/firewalling.
</para>
</sect3>
</sect2>
@ -970,6 +1002,20 @@ url="http://www.fibertel.com.ar">http://www.fibertel.com.ar</ulink>.
<!-- S e c t i o n - - - - - - - - - - - - - - - B r e a k e r -->
<sect2>
<title>Videotron (Videon), Canada</title>
<para>
It appears that Videon has started providing information on how to set up
your Linux box for their cable service. Info can be found at:
</para>
<para>
English: <ulink url="http://internet.videotron.ca/technical/">http://internet.videotron.ca/technical/</ulink>
French: <ulink url="http://internet.videotron.ca/linux-dhcp">http://internet.videotron.ca/linux-dhcp/</ulink>
</para>
<para>
If this doesn't work out for you there is more information available below.
</para>
<para>
I don't have much information about Videotron except the fact that they
use DHCP for the assignment of IP addresses and other networking
@ -2241,6 +2287,11 @@ easy since it uses DHCP so I don't think you should have any problems
under a modern linux distribution.
</para>
<para>
For more information check out Mario's web page at
<ulink url="http://www.supercable.es/%7Egabu/">http://www.supercable.es/%7Egabu/</ulink>.
</para>
<para>
Last thing worth to be said is that Supercable doesn't provide support
for Linux but you can always ask your questions in news.supercable.es in
@ -2432,7 +2483,7 @@ the tech support do not seem to know much about software.
<title>Com Hem, Sweden</title>
<para>
This information is provided by Zoltan Arpadffy <email>arpadffy@polarfox.com</email>:
This information is provided by Zoltan Arpadffy <email>arpadffy@altavista.net</email>:
</para>
<para>
@ -2445,9 +2496,11 @@ claims ), but it is not so complicate to set up on Linux as well.
</para>
<para>
com hem sells NetGame's cable modem (NeMo). Initial speed is 512 kb/s and it can be
set up to 10Mb/s. You can order it with or without Ethernet card.
com hem internet service is available in the bigger cities all over Sweden.
com hem sells NetGame's cable modem (NeMo)
<ulink url="http://www.ngcable.com/nemo.shtml">http://www.ngcable.com/nemo.shtml</ulink>.
It is a very fast and flexible 2-way cable modem with initial speed of 512 kb/s but it can be set
up to 10Mb/s by the cable provider. You can order it with or without Ethernet card.
com hem Internet service is available in the bigger cities all over Sweden.
</para>
<sect3>
@ -2463,13 +2516,19 @@ set up your network card to work properly
<listitem>
<para>
configure DHCP to that card (DHCP mini-HOWTO)
configure DHCP to that card (<ulink url="http://www.oswg.org/oswg-nightly/DHCP.html">DHCP mini-HOWTO</ulink>)
</para>
</listitem>
<listitem>
<para>
you need some browser what supports Java-script (as Netscape) and go to the login
try to ping login1.telia.com (10.0.0.6)
</para>
</listitem>
<listitem>
<para>
you need a browser what supports Java-script (Netscape or Mozilla) and go to the login
site <ulink url="http://login1.telia.com/">http://login1.telia.com/</ulink>
</para>
</listitem>
@ -2519,7 +2578,8 @@ second network card have to use DHCP
enable ip forwarding
<programlisting>
net.ipv4.ip_forward = 1 in /etc/sysctl.conf or by
net.ipv4.ip_forward = 1 in /etc/sysctl.conf or
set FORWARD_IPV4 to true in /etc/sysconfig/network (RedHat or Mandrake) or by
echo "1" > /proc/sys/net/ipv4/ip_forwarding
</programlisting>
</para></listitem>
@ -2580,6 +2640,69 @@ and you're on the road with all your LAN.
</para>
</sect3>
<sect3>
<title>
You from the internet
</title>
<para>
There are no limitations in traffic, protocols or ports so far from
com hem side, So you can easily set up your web, irc or ftp server at
home or in the office. But is very uncomfortable to use URL like
http://h2n5fdt22o429.telia.com. You probably need a new usable domain
name, but there is a problem with DHCP. Anyhow there is one solution.
</para>
<itemizedlist>
<listitem><para>Find one independent DNS server</para></listitem>
<listitem><para>Buy your desired domain name</para></listitem>
<listitem><para>Set up the DNS server as a forwarder to you DHCP address</para></listitem>
</itemizedlist>
<para>
if the DNS server is running on Unix probably add to /etc/named.conf
</para>
<programlisting>
zone "private.net"{
type forward;
forward only;
forwarders{
YOUR.DHCP.ADDRESS;
};
};
</programlisting>
<para>Set up your own DNS server to be master for your domain</para>
<programlisting>
zone "private.net"{
type master;
file "private.net-ZONE-FILE";
notify no;
};
</programlisting>
<itemizedlist>
<listitem><para>Edit the zone file as it has been written in DNS-HOWTO</para></listitem>
<listitem><para>Add your name server to etc/resolv.conf </para></listitem>
</itemizedlist>
<programlisting>
search private.net telia.com
nameserver 127.0.0.1
nameserver 10.0.0.1
</programlisting>
<itemizedlist>
<listitem><para>... and your domain is alive</para></listitem>
<listitem><para>If your IP address is changing it is enough to re-set the forwarder
DNS server and after few hours your server will be visible as usual, so far you are
keeping your line alive</para></listitem>
</itemizedlist>
</sect3>
<sect3>
<title>
Problems:
@ -2600,10 +2723,8 @@ terminated and you have to log in again... meanwhile your gateway and all your i
services will be unreachable from outside as well (if you're running some web server
at home etc).
Solution: start one ping process or even more elegant solution is to submit one cron
job for every 5-10 minutes on the gateway, to "do something" though the network.
job for every 5-10 minutes on the gateway, to "do something" through the network.
</para>
</listitem>
</itemizedlist>
<para>
I did it with /etc/cron.d/keep-alive file when contains:
@ -2613,9 +2734,85 @@ I did it with /etc/cron.d/keep-alive file when contains:
# fake connection in order to keep line alive
# every 5 minutes send some packages
MAILTO=""
*/5 * * * * ping -f -c 5 www.polarfox.com
*/5 * * * * ping -f -c 5 ftp.sunet.se
</programlisting>
</listitem>
<listitem>
<para>Security: your computer or whole LAN is on the Internet now without
any protection against attacks from outside.</para>
<para>Solution: []Security-HOWTO can help you to set up your system quite
safe. This is an important issue, you should not just bypass it.
Your gateway should be your firewall as well.
</para>
</listitem>
<listitem>
<para>
Applications: If you have LAN at home you have to face IP masquerade
problem with some applications as ftp, irc, Quake or RealAudio.
</para><para>
Solution: You have to load necessary modules for proper work.
</para>
<programlisting>
/sbin/depmod -a
/sbin/modprobe ip_masq_autofw
/sbin/modprobe ip_masq_ftp
/sbin/modprobe ip_masq_raudio
/sbin/modprobe ip_masq_irc
/sbin/modprobe ip_masq_mfw
/sbin/modprobe ip_masq_user
/sbin/modprobe ip_masq_cuseeme
/sbin/modprobe ip_masq_portfw
/sbin/modprobe ip_masq_vdolive
/sbin/modprobe ip_masq_quake
</programlisting>
</listitem>
<listitem>
<para>DNS problem: Periodically DHCP configuration of your network
interface will be reload (pumpd) and it will overwrite your
own DNS setup in /etc/resolv.conf. To avoid this behavior of pump
daemon add to /etc/pump.conf file:
</para>
<programlisting>
device eth1 {
nodns
}
</programlisting>
</listitem>
<listitem>
<para>
Windows install: even if you are running Windows on your computer,
DO NOT install com hem from the provided CD, because the configuration
on Internet Explorer are permanent and even the com hem support can
not help you to de-install :-). The problem is not serious, but you
have to dig deep with regedit.
</para>
<para>Solution: In control panel/network set up your network card to
and eventually DNS server to 10.0.0.1. Reboot (as usual) and log in.
It's so easy without any complications.
</para>
</listitem>
<listitem>
<para>
Cable modem: You have to be aware that your cable modem is a peripheral
of your computer and not a standalone network unit. So you should not
expect that your network will survive the "modem reboot". The order is
always: first modem and after the computer. Note: if the modem is on,
you may reboot or switch off/on your computer without any problem.
</para>
</listitem>
</itemizedlist>
</sect3>
</sect2>
@ -2700,7 +2897,7 @@ However, I could get other packets.
<sect2>
<title>Liwest, Austria</title>
<para>
Information provide by Bernd Haug <email>haug@liwest.at</email>:
Information provided by Bernd Haug <email>haug@liwest.at</email>:
</para>
<para>
@ -2749,7 +2946,7 @@ agreed to provide assistance to any current or new Linux user.
<sect2>
<title>Blueyonder from Telewest, United Kingdom</title>
<para>
Information provide by Mike Watson <email>mike@prog99.com</email>:
Information provided by Mike Watson <email>mike@prog99.com</email>:
</para>
<para>
@ -2774,7 +2971,7 @@ will only support a win9x setup. But when it was this easy....
<sect2>
<title>CableNet, Colombia</title>
<para>
Information provide by Marco Muskus <email>muskus@superpuertos.homeip.net</email>:
Information provide by Marco Muskus <email>muskus@gamebox.net</email>:
</para>
<para>
@ -2784,6 +2981,50 @@ Ethernet NIC. Set up is mostly done using
but some people also receive static IPs.
</para>
</sect2>
<!-- S e c t i o n - - - - - - - - - - - - - - - B r e a k e r -->
<sect2>
<title>Brutele, Belgium</title>
<para>
Information provided by Fabrice Timmermans <email>Fabrice.Timmermans@ITSoftware.be</email>:
</para>
<para>
Operator: BRUTELE - covers part of Brussels and South of Belgium
</para>
<para>
Hardware: Teraillon Cable Modem using an RJ-45 Ethernet straight cable to a
PC
</para>
<para>
Software: Standard config is Windows, although Linux i386 support is there
under the form of mirrored Linuxberg on the internal servers.
</para>
<para>
IP Setup: <ulink url="http://www.oswg.org/oswg-nightly/DHCP.html">DHCP</ulink>
address assignment, single address only. More available depending on subscription mode.
</para>
<para>
Pricing: one-off installation : BF 2500 (+-$ 85) + BF 5000 ($175) deposit
for the cable modem. Monthly fee : BF 1500 ($40) + Modem loan BF 500 (12$)
</para>
<para>
Services: Tucows and Linuxberg mirrors, quake I and II servers, proxy, mail
relay and pop account (3 aliases) and the other usual stuff you need to
survive on the net.
</para>
<para>
More info at <ulink url="http://www.brutele.be/">http://www.brutele.be/</ulink>.
</para>
</sect2>
</sect1>