I have this situation LAN CLIENTS----switch---eth0-LinuxBox-eth1----ViaSat_Satellite_Router---satellite_connection The linuxbox is an old pentium pc. The viasat linkstar satellite router is a standard DVB system (http://www.viasat.com/vsat/linkstar/) with a normal ethernet connection to linux box. There is a full bidiretional satellite connection (512/128). In LinuxBox I have shorewall with "all to all drop" default policy. This configuration worked so good for much time with a Cisco Isdn Router. Now I changed only ip address of eth1 to adapt configuration to Satellite Router. All works good, BUT many times in a day the connection stops and freeze for 5/10 minutes. After all continue to works again. I tryed to explore system logs but nobody may change in this minutes. Nothing can restart connection before 5/10 minutes. I tryed to restart all services. But if I restart shorewall all works good again immediately. Please help me to understand what kind of problem is this. Why this? There is some special setting of shorewall for satellite connection? Thanks so much.
On Sunday 21 March 2004 03:50 pm, Info * HI-Lab wrote:> I have this situation > > > LAN > CLIENTS----switch---eth0-LinuxBox-eth1----ViaSat_Satellite_Router---sa >tellite_connection >> All works good, BUT many times in a day the connection stops and > freeze for 5/10 minutes. After all continue to works again.> But if I restart shorewall all works good again immediately.Does your viasat issue you a IP via dhcp? Or does your ISP issue IPs directly to the linux box? ( I''m thinking this might be FAQ 14a or something...) -- John Andersen - NORCOM http://www.norcomsoftware.com/
Info * HI-Lab wrote:> > All works good, BUT many times in a day the connection stops and freeze > for 5/10 minutes. After all continue to works again. > > I tryed to explore system logs but nobody may change in this minutes.I don''t understand what you are saying -- is it that there are no log messages during the time that connections fail?> Nothing can restart connection before 5/10 minutes. I tryed to restart > all services. > But if I restart shorewall all works good again immediately.Is this just a single IP address setup?> Please help me to understand what kind of problem is this. > Why this?I have no idea.> There is some special setting of shorewall for satellite connection?No. -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ teastep@shorewall.net
Tom Eastep wrote:> > Is this just a single IP address setup? >And is your external IP address dynamic or static? -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ teastep@shorewall.net
Tom Eastep wrote:> Tom Eastep wrote: > >> >> Is this just a single IP address setup? >> > > And is your external IP address dynamic or static? > > -TomA couple of other questions for the OP might be... 1) Is this an on-demand type of setup? 2) What is typical ping latency with your satellite link? Steve Cowles
Tom Eastep ha scritto:> Tom Eastep wrote: > >> >> Is this just a single IP address setup? >> > > And is your external IP address dynamic or static?Static.
Cowles, Steve ha scritto:> > A couple of other questions for the OP might be... > > 1) Is this an on-demand type of setup?No, it''s a connection always on, that previosly worked good with a flat connection to an isdn router.> 2) What is typical ping latency with your satellite link? >Satellite normally has a high latency. -- ======================================HI-LAB the Social Technology °°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°° www.hi-lab.net °°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°° by cooperativa sociale l''Utopia a r.l. =======================================
John Andersen ha scritto:> Does your viasat issue you a IP via dhcp?No.> Or does your ISP issue IPs directly to the linux box? > ( I''m thinking this might be FAQ 14a or something...) >No. Public ip is assigned to Viasat Linkstar satellite router.
Webmaster * HI-Lab ha scritto:>> 2) What is typical ping latency with your satellite link? > > > Satellite normally has a high latency. > >maybe 15000 or 16000 ms
Webmaster * HI-Lab wrote:> Webmaster * HI-Lab ha scritto: > >>> 2) What is typical ping latency with your satellite link? >> >> >> >> Satellite normally has a high latency. >> >> > > maybe 15000 or 16000 msSurely not -- that''s 15-16 *seconds*. My only suggestion to you is that when connections stop working, use tcpdump to try to understand what is happening. -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ teastep@shorewall.net