Thanks Grant .. alot to go on. The line was isolated. I disconnected the eftpos & ebay machines and phone lines etc. I have since found out that there is a strong possibility the line is ADSL. ( due to a shop move to a bigger premise) There is no filter on the line. I asked the IT guy and he reckons the filter is to protect the high bandwidth ADSL from the voice analogue Not the other way around so it shoudn't be a problem.
I will now try and arrange (if possible an ADSL account & adsl modem.) I never have installed an ADSL account on linux so any link to howtos, gotchas, FAQs , best modems to use I would greatly appreciate. If I thought the lists search egine was any good I would use it . Nodoubt this issue has a been popular thread in the past. Thanks Roger PS Anybody wanting to buy a Telstra Retail Franchaise ? If so a shop is already setup at 10 Belmore Rd Randwick Sydney 2031 Telestar Communications ( www.telestar.com.au ) has moved into corporate sales , and the existing retail shop at Randwick (10 belmore Rd) is winding down. Call 1300658687 ask for Sam or Julie or email [EMAIL PROTECTED] or [EMAIL PROTECTED] ----- Original Message ----- From: "Grant Parnell" <[EMAIL PROTECTED]> To: "Roger Salisbury" <[EMAIL PROTECTED]> Cc: <> Sent: Friday, October 31, 2003 4:56 AM Subject: Re: [SLUG] KPPP external modem " unexpected disconnections" forced by remote end. > ^@ is mnemonic for a null. It's my opinion that this isn't significant in > your setup. You might want to add S2=255 to your modem init string if it's > not there already. Some (dodgy) modems do not honour the 0.5 second guard > time gap to the +++ escape sequence, thus anytime three plusses occur in > the outbound data stream the modem might flip into command mode and > shortly after disconnection occurs due to LCP timeouts. The S2=255 setting > usually disabled the escape sequence such that it will only go into > command mode when the carrier drops or the DTR signal is dropped. > > It would also help if you turned on the PPP debug option, the level of > logging shown isn't enough for us to really see what's going on. > > Another possibility is either an inactivity timeout or a firewall > rejecting possible heartbeat signals. Try turning on the LCP keepalive > (from memory) option. Or failing that... a simple script like so > > #!/bin/sh > while [ 0 ]; do > ping -c 100 -w 1 -i 60 www.yourispdomain.com.au > done > > That'll ping 100 times, wait up to a second for the response, do this > every 60 seconds then repeat indefinitely. Thus producing *some* traffic > defeating idle timeouts. > > > On Fri, 31 Oct 2003, Roger Salisbury wrote: > > > Hi sluggers > > > > Someone may had the very same modem problem listed below. > > > > IE a "^@" sequence sent from the remote end. (ISP=bigpond) > > > > I am running RedHat 9 and having trouble with frequent unexpected disconnections with a bigpond dialup account. > > Have tried different dial up 56 external modems with the exactly same problem. > > > > The hint given belopw is for some reason always a "^@" sent from the remote end. > > > > I nearly always get cutoff within 15 minutes, although the longest is about 35 minutes. > > > > Any help greatly appreciated > > > > Thanks > > Roger > > > > > > > > > > > > > > KPPP error message: > > ########################################################### > > Notice that the remote system has sent the following message: > > "^@" > > This may give you a hint why the the connection has failed. > > Check that you supplied the correct username and password! > > ############################################################# > > > > > > > > Extra Info: > > ATI responses (won't mean much) & log > > ############################################################# > > ATI : 33600 > > ATI 3: V2.200-V34_ACF_DS1 > > ATI 6: RCV336DPFSP Rev 44BC > > ##################################################################### > > ct 29 00:11:26 localhost pppd[4701]: pppd 2.4.1 started by root, uid 0 > > Oct 29 00:11:26 localhost pppd[4701]: Using interface ppp0 > > Oct 29 00:11:26 localhost pppd[4701]: Connect: ppp0 <--> /dev/ttyS1 > > Oct 29 00:11:27 localhost pppd[4701]: Remote message: ^@ > > Oct 29 00:11:27 localhost pppd[4701]: local IP address 203.40.128.204 > > Oct 29 00:11:27 localhost pppd[4701]: remote IP address 144.130.139.242 > > Oct 29 00:11:27 localhost pppd[4701]: primary DNS address 203.49.70.92 > > Oct 29 00:11:27 localhost pppd[4701]: secondary DNS address 139.134.2.190 > > Oct 29 00:24:22 localhost pppd[4701]: Hangup (SIGHUP) > > Oct 29 00:24:22 localhost pppd[4701]: Modem hangup > > Oct 29 00:24:22 localhost pppd[4701]: Connection terminated. > > Oct 29 00:24:22 localhost pppd[4701]: Connect time 13.0 minutes. > > Oct 29 00:24:22 localhost pppd[4701]: Sent 45144 bytes, received 7870 bytes. > > Oct 29 00:24:22 localhost pppd[4701]: Exit. > > ##################################################################### > > > > > > -- > ---<GRiP>--- > Electronic Hobbyist, Former Arcadia BBS nut, Occasional nudist, > Linux Guru, SLUG/AUUG/Linux Australia member, Sydney Flashmobber, > BMX rider, Walker, Raver & rave music lover, Big kid that refuses > grow up. I'd make a good family pet, take me home today! > Do people actually read these things? > -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
