READ ONLY ARCHIVES
Welcome to the TiVo
Community Forum Archive
This archive covers threads on TiVo
Community Forum that have not been posted to from the start until June 30, 2004. Any
thread that has a post made to it between 7/1/04 and 12/31/05, that had not been posted to, will be found in
This is a READ ONLY site.
>>> My PPP-to-Linux experience w/ 3.0, w/o home network <<<
06-10-2002 10:16 PM
Registered: Aug 2001
Location: Redwood City CA
My PPP-to-Linux experience w/ 3.0, w/o home network
(Crossposted to alt.video.ptv.tivo.)
Here's a recap of what I did to get my Series 1 TiVo to use PPP over serial with 3.0. As much of the information I've found on line only deals with people who a) use Windows and/or b) have a router as part of a home network, I think my experiences will be helpful for some others in my situation.
Background: RedHat 7.2 Linux box w/ cable modem. No router, as the computer's the only thing with broadband connectivity. Philips Series 1 TiVo with the new 3.0 software and its (un)support for PPP and Ethernet through magic prefix codes in Phone Options.
Connectivity: As I neither needed "always-on" access, nor wanted to crack open my TiVo again, PPP over serial is what I decided to do.
What I bought: Null modem, serial extension cable. You of course need the TiVo serial cable (the one that ends with the headphone-like plug) as well.
What I added to /etc/rc.d/rc.local on my Linux box:
echo "Enabling IP forwarding."
echo 1 > /proc/sys/net/ipv4/ip_forward
echo "Adding TiVo-specific IP masquerading rules."
/sbin/ipchains -P forward DENY
/sbin/ipchains -A forward -i eth0 -s 192.168.10.2 -j MASQ
echo "Starting the pppd for TiVo."
/usr/sbin/pppd /dev/tts/1 115200 noauth debug proxyarp nocrtscts \
nobsdcomp nodeflate persist local lcp-max-configure 28800 \
(Note that I use devfsd. If you don't, you should change /dev/tts/1 to
What else I had to do on my Linux box: I use Redhat's lokkit utility
to set up some simple firewall rules. I found I had to manually add
8080 as a permitted port, as TiVo uses it for part of its
communications with home base. I am sure there is a more elegant way
to do the above within the TiVo-specific IP masquerading rules, but
not being an ipchains expert (I've historically used tcp_wrappers a
lot more) I will defer to others here. As I don't run anything that
listens to port 8080 on my machine I believe I should be safe.
Problem and bizarre solution: The above setup initially did not work
at all. It didn't work so much that `cat /dev/tts/1` didn't show
anything. Out of desperation I removed the null modem; lo and behold,
things started happening! Apparently I have either a miswired TiVo,
TiVo serial cable, or Radio Shack serial cable. Since then I have
heard one similar report on AVS Forum, so there may be others so
The above setup has worked for over a week with no trouble yet. I have
happily canceled my landline (which I only used for TiVo), so I can
say 3.0 has saved me $17/month.
2x100GB = 246 hours on a Series 1 w/ 3.0 and (un)supported PPP
POST #1 | Report this post to a moderator
| IP: Logged
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is OFF
vB code is ON
Smilies are ON
[IMG] code is ON
< Contact Us - TiVo Community Forum Archive 1
Powered by: vBulletin Version 2.2.8
Copyright ©2000, 2001, Jelsoft Enterprises Limited.
(C)opyright - All Rights Reserved. No information may be posted elsewhere without written permission.
TiVoŽ is a registered trademark of TiVo Inc. This site is not affiliated with TiVo Inc.
Page generated in 0.04293203 seconds (87.45% PHP - 12.55% MySQL) with 20 queries.
Spider History Index