<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><FONT class="Apple-style-span" face="Arial" size="3"><SPAN class="Apple-style-span" style="font-size: 13px;"><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Ahh. That makes more sense. Well, the bandwidth issue still might be a problem. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>The big question is: can you see the IP address of the backend from the frontend? Is it on a public IP subnet, or at least in a private subnet that is directly outside your local subnet? Then, security aside, all you need to do theoretically is change the master backend IP address settings (with mythtv-setup), then point the frontend(s) to the new IP address with the setup menu.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>If you need to get through a firewall, you should be able to use ssh to do the port forwarding. <FONT class="Apple-style-span" face="Helvetica" size="3"><SPAN class="Apple-style-span" style="font-size: 12px;"><A href="http://www.revsys.com/writings/quicktips/ssh-tunnel.html">http://www.revsys.com/writings/quicktips/ssh-tunnel.html</A></SPAN></FONT></DIV>The ports I know about are: MySQL (TCP port</SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="3"><SPAN class="Apple-style-span" style="font-size: 13px;"> 3306) and mythbackend (TCP ports </SPAN></FONT><FONT class="Apple-style-span" face="Arial" size="3"><SPAN class="Apple-style-span" style="font-size: 13px;">6543 and 6544), but I don't know if Mythtv uses any others. Again, ssh can be a CPU hog, so I'm not sure what you can pump through it reliably for a video stream.</SPAN></FONT><DIV><BR class="khtml-block-placeholder"></DIV><DIV><FONT class="Apple-style-span" face="Arial" size="3"><SPAN class="Apple-style-span" style="font-size: 13px;"></SPAN></FONT>Failing all of that, go get a 802.11N wireless access point and a couple of interface cards and go wireless! Eliminates all of the nasty gateway router issues, but you might be competing with campus wireless networks and still have problems...<DIV><FONT class="Apple-style-span" face="Arial" size="3"><SPAN class="Apple-style-span" style="font-size: 13px;"><BR></SPAN></FONT><DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>On Feb 1, 2007, at 8:43 PM, David Lynam wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">Thanks for your help but you have my senario right but the reason to move wrong.</DIV> <DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">I am moving the Backend because where it is at the minute I have to use "rabit ears" antenna to pick up a tv signal. This is a very poor signal so I have proposed to move my backend and place it in a room where I have direct acess to a external antenna thus creating a strong signal. Then I hope to talk to the frontend from here?? Any ideas of how i would set up such a system??<BR><BR> <DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Original Message ----<BR>From: Brian Schott <<A href="mailto:bschott@east.isi.edu">bschott@east.isi.edu</A>><BR>To: Discussion about mythtv <<A href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</A>><BR>Sent: Friday, February 2, 2007 1:12:28 AM<BR>Subject: Re: [mythtv-users] IP Tunnel??<BR><BR> <DIV>Let's see if we understand the question:</DIV> <DIV><BR class="khtml-block-placeholder"></DIV> <DIV>1. You have a subnetwork (like a 192.168.x.x) behind an access point that runs network address translation (NAT), say in your dorm room?</DIV> <DIV><BR class="khtml-block-placeholder"></DIV> <DIV>2. You want to move the backend to a network outside your local NAT onto the main campus network (friends with root are friends indeed :-) to get better bandwidth to the internet?</DIV> <DIV><BR class="khtml-block-placeholder"></DIV> <DIV>The answer is most likely yes, but should you? Right now your front end and backend are talking to each other over a local network switch. When you watch TV, the stream between front-end and back-end might average 3Mb/sec (depending on transcoder settings). My guess is that your busy college network will give you really poor performance if you are competing with multiple users on the college network. </DIV> <DIV><BR class="khtml-block-placeholder"></DIV> <DIV>If you don't have to move the backend box to change networks, why not just plug your NAT device into the campus network? Alternatively, beg borrow or buy a PCI network interface card (they are probably $10 on newegg.com and are often found as trash in computer lab equipment rooms) and install a second card into your backend. One card is the local lan, the new card connects to the campus network. Best of both worlds.</DIV> <DIV><BR class="khtml-block-placeholder"></DIV> <DIV> <DIV>On Feb 1, 2007, at 7:00 PM, David Lynam wrote:</DIV><BR class="Apple-interchange-newline"> <BLOCKQUOTE type="cite"> <DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"> <DIV>Hi,</DIV> <DIV>I have setup a subnetwork inside a college network in which i currently have a backend and frontend mythbox. I wish to move my backend out of this subnetwork and onto the main network in order to get a better signal? Is it possible that I could do this and leave the frontend where it is and setup and IP tunnel through the network and if so how would I go about it??</DIV></DIV><BR> <HR size="1"> <A href="http://us.rd.yahoo.com/evt=49938/*http://tools.search.yahoo.com/toolbar/features/mail/" target="_blank" rel="nofollow">Never miss an email again!<BR>Yahoo! Toolbar</A> alerts you the instant new Mail arrives.<A href="http://us.rd.yahoo.com/evt=49937/*http://tools.search.yahoo.com/toolbar/features/mail/" target="_blank" rel="nofollow"> Check it out.</A> <DIV style="MARGIN: 0px">_______________________________________________</DIV> <DIV style="MARGIN: 0px">mythtv-users mailing list</DIV> <DIV style="MARGIN: 0px"><A href="mailto:mythtv-users@mythtv.org" target="_blank" rel="nofollow">mythtv-users@mythtv.org</A></DIV> <DIV style="MARGIN: 0px"><A href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users" target="_blank" rel="nofollow">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</A></DIV></BLOCKQUOTE></DIV><BR> <DIV>_______________________________________________<BR>mythtv-users mailing list<BR><A href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</A><BR><A href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users" target="_blank">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</A></DIV></DIV><BR></DIV></DIV><BR> <HR size="1"><A href="http://us.rd.yahoo.com/evt=49935/*http://games.yahoo.com">Bored stiff?</A> Loosen up...<BR><A href="http://us.rd.yahoo.com/evt=49935/*http://games.yahoo.com">Download and play hundreds of games for free</A> on Yahoo! Games.<DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">mythtv-users mailing list</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</A></DIV> </BLOCKQUOTE></DIV><BR></DIV></DIV></BODY></HTML>