SOLVED [was Re: Strange Networking Problem on my ADSL-connected Home LAN]

2005-08-19 Thread Shlomi Fish
rybody for their advice. (and special thanks to Shachar Shemesh for reviewing the Ethereal logs). Regards, Shlomi Fish On Monday 15 August 2005 22:35, Shlomi Fish wrote: > Hi good people! > > I have a strange networking problem on my ADSL-connected home LAN. My setup > is as foll

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Peter
On Fri, 19 Aug 2005, Amos Shapira wrote: The electricity code forbids this anyway. Does the electricity code has anything to say about compulsory grounding at homes? Yes it has but I have not read it. The GFI won't work if the ground is not ok. 'My' standard is to check between a local g

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Amos Shapira
On 8/19/05, Geoffrey S. Mendelson <[EMAIL PROTECTED]> wrote: > On Fri, Aug 19, 2005 at 05:47:25PM +1000, Amos Shapira wrote: > > > It wasn't a one-time shock but a continues electric current felt any time > > I touched the serial port. > > Sounds like an MOV to me. What's that? > > > "Luckily"

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Amos Shapira
On 8/19/05, Peter <[EMAIL PROTECTED]> wrote: > > > On Fri, 19 Aug 2005, Amos Shapira wrote: > > > It wasn't a one-time shock but a continues electric current felt any > > time I touched the serial port. "Luckily" my room in that apartment > > was across the wall from the kitchen, so I drilled a

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Geoffrey S. Mendelson
On Fri, Aug 19, 2005 at 05:47:25PM +1000, Amos Shapira wrote: > It wasn't a one-time shock but a continues electric current felt any time > I touched the serial port. Sounds like an MOV to me. > "Luckily" my room in that apartment was across the wall from the kitchen, > so I drilled a hole in t

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Peter
On Fri, 19 Aug 2005, Amos Shapira wrote: It wasn't a one-time shock but a continues electric current felt any time I touched the serial port. "Luckily" my room in that apartment was across the wall from the kitchen, so I drilled a hole in the wall and connected the ground of the socket to th

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Peter
On Fri, 19 Aug 2005, Amos Shapira wrote: On 8/19/05, Peter <[EMAIL PROTECTED]> wrote: Check the grounding of your computer case and of the modem. I have seen cable installations that would input >5Vac into the cable ground from ground fault currents plus scary glitch voltages when A/C was swit

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Amos Shapira
On 8/19/05, Geoffrey S. Mendelson <[EMAIL PROTECTED]> wrote: > On Fri, Aug 19, 2005 at 08:49:04AM +1000, Amos Shapira wrote: > > > I dunno where you live but many old in Tel-Aviv and surroundings > > don't have grounding at all (I first found this out from getting > > "electrocuted" from the D-fra

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-19 Thread Geoffrey S. Mendelson
On Fri, Aug 19, 2005 at 08:49:04AM +1000, Amos Shapira wrote: > I dunno where you live but many old in Tel-Aviv and surroundings > don't have grounding at all (I first found this out from getting > "electrocuted" from the D-frame of the serial port). Shocks like this often come from no grounding

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-18 Thread Amos Shapira
On 8/19/05, Peter <[EMAIL PROTECTED]> wrote: > Check the grounding of your computer case and of the modem. I have seen > cable installations that would input >5Vac into the cable ground from > ground fault currents plus scary glitch voltages when A/C was switched > on and off. I dunno where you li

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-18 Thread Amos Shapira
On 8/18/05, Shlomi Fish <[EMAIL PROTECTED]> wrote: > OK. I've already switched from one Ethernet card to the other here, because > the previous one stopped functioning. Is it possible that my computer > serially damages the Etherenet cards it is using? :-( Also try to replace the cable itself. --

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-18 Thread Peter
On Thu, 18 Aug 2005, Shlomi Fish wrote: Then again, it may be a faulty NIC, like Baruch pointer out. OK. I've already switched from one Ethernet card to the other here, because the previous one stopped functioning. Is it possible that my computer serially damages the Etherenet cards it is us

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-18 Thread Erez D
can it be that an change mtu icmp (or somthing similiar ) may be blocked by your firewall if so, try: /sbin/iptables  -A FORWARD -o $inet_if -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu cheers, erez. On 8/18/05, Shlomi Fish <[EMAIL PROTECTED]> wrote: On Tuesday 16 August 2005 15:

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-18 Thread Shlomi Fish
On Tuesday 16 August 2005 15:01, Shachar Shemesh wrote: > Shachar Shemesh wrote: > > Shlomi Fish wrote: > >> I've checked it on the desktop machine with both Win98 and Mandriva > >> 2006 LE Linux - both exhibited the problem. I tried disabling all > >> listening ports and other downloads on Linux -

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-16 Thread Shachar Shemesh
Shachar Shemesh wrote: Shlomi Fish wrote: I've checked it on the desktop machine with both Win98 and Mandriva 2006 LE Linux - both exhibited the problem. I tried disabling all listening ports and other downloads on Linux - it didn't help. I tried checking for a rootkit on the Linux installat

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-16 Thread Baruch Even
Geoffrey S. Mendelson wrote: > On Tue, Aug 16, 2005 at 12:10:43PM +0300, Shlomi Fish wrote: > >>In any case, I forgot to mention that I changed the MTU to both of these >>values on the Linux machine and it did not help. Also, according to this >>page: >> >>http://www.dslreports.com/tweaks/MTU >>

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-16 Thread Geoffrey S. Mendelson
On Tue, Aug 16, 2005 at 12:10:43PM +0300, Shlomi Fish wrote: > In any case, I forgot to mention that I changed the MTU to both of these > values on the Linux machine and it did not help. Also, according to this > page: > > http://www.dslreports.com/tweaks/MTU > > The WinXP machine is configured

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-16 Thread Shachar Shemesh
Shlomi Fish wrote: I've checked it on the desktop machine with both Win98 and Mandriva 2006 LE Linux - both exhibited the problem. I tried disabling all listening ports and other downloads on Linux - it didn't help. I tried checking for a rootkit on the Linux installation using chkrootkit - it

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-16 Thread Shlomi Fish
On Tuesday 16 August 2005 10:03, Geoffrey S. Mendelson wrote: > On Mon, Aug 15, 2005 at 10:35:55PM +0300, Shlomi Fish wrote: > > Hi good people! > > > > I have a strange networking problem on my ADSL-connected home LAN. My > > setup is as follows: > > &l

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-16 Thread Baruch Even
Shlomi Fish wrote: > Hi good people! > > I have a strange networking problem on my ADSL-connected home LAN. My setup > is > as follows: > > I have an ECI ADSL modem. I also have a Wireless/Ethernet NAT-router that is > connected to it. All the computers (one dual-boot

Re: Strange Networking Problem on my ADSL-connected Home LAN

2005-08-16 Thread Geoffrey S. Mendelson
On Mon, Aug 15, 2005 at 10:35:55PM +0300, Shlomi Fish wrote: > Hi good people! > > I have a strange networking problem on my ADSL-connected home LAN. My setup > is > as follows: > <<<<<<<<<<<<<<<< > eth0 Link encap:

Strange Networking Problem on my ADSL-connected Home LAN

2005-08-15 Thread Shlomi Fish
Hi good people! I have a strange networking problem on my ADSL-connected home LAN. My setup is as follows: I have an ECI ADSL modem. I also have a Wireless/Ethernet NAT-router that is connected to it. All the computers (one dual-boot Linux/Win98 desktop and two WinXP laptops) are connected to

Re: networking problem

2000-11-08 Thread sagi
On Wed, 8 Nov 2000, Boaz Rymland wrote: > Ury Segal wrote: > > > > Sagi Bashari wrote: > > > > > On Wed, 8 Nov 2000, Noam Ben Haim wrote: > > > > > > > hello all. > > > > I have a home network, consists of 2 Win2000 computers, and a linux (RH6.2) > > > > one. > > > > I can ping to any machine f

Re: networking problem

2000-11-08 Thread Boaz Rymland
Ury Segal wrote: > > Sagi Bashari wrote: > > > On Wed, 8 Nov 2000, Noam Ben Haim wrote: > > > > > hello all. > > > I have a home network, consists of 2 Win2000 computers, and a linux (RH6.2) > > > one. > > > I can ping to any machine from any machine, but since the modem is on one of > > > the w

Re: networking problem

2000-11-08 Thread Ury Segal
Sagi Bashari wrote: > On Wed, 8 Nov 2000, Noam Ben Haim wrote: > > > hello all. > > I have a home network, consists of 2 Win2000 computers, and a linux (RH6.2) > > one. > > I can ping to any machine from any machine, but since the modem is on one of > > the windows machines, I want to use it as a

Re: networking problem

2000-11-08 Thread Sagi Bashari
On Wed, 8 Nov 2000, Noam Ben Haim wrote: > hello all. > I have a home network, consists of 2 Win2000 computers, and a linux (RH6.2) > one. > I can ping to any machine from any machine, but since the modem is on one of > the windows machines, I want to use it as a gateway, with dial-on-demand. I >

Re: networking problem

2000-11-08 Thread alex senin
Noam Ben Haim wrote: > > hello all. > I have a home network, consists of 2 Win2000 computers, and a linux (RH6.2) > one. > I can ping to any machine from any machine, but since the modem is on one of > the windows machines, I want to use it as a gateway, with dial-on-demand. I > managed to do thi

networking problem

2000-11-08 Thread Noam Ben Haim
hello all. I have a home network, consists of 2 Win2000 computers, and a linux (RH6.2) one. I can ping to any machine from any machine, but since the modem is on one of the windows machines, I want to use it as a gateway, with dial-on-demand. I managed to do this for the other win2000 machine, but