----- Original Message ----- From: "nn" <[EMAIL PROTECTED]> To: "Alberto Rodr�guez" <[EMAIL PROTECTED]> Sent: Wednesday, April 24, 2002 8:47 PM Subject: Re: Fw: Problems with lost packets
> Quoting Alberto Rodr�guez <[EMAIL PROTECTED]>: > > OK, I understand. > -Which ADSL driver do you use under linux ? I havent't got any, my adsl machine is an external router adsl which is conected by an ethernet nic to the computer. It's a 3com 812. > -do you have a noisy line ? Do you have ADSL phone filters for all your phones Well... not, on this adsl-line aren`t phones, and it have got a splitter which slipt date and voice. > or fax machine ? Ok, yes, we have a fax machine on this line. Perhaps It's the problem, but so I don't understand the reason because I can work from the firewall (which is a potato-debian-linux machine with kernel 2.2.17), and I can't work from the server properly (which is a potato-debian-linux with kernel 2.4.17 and support for xfs filesystem). both of them (Server and Firewall) and the router-adsl are all conected to a switch. Perhaps, the problem is between adsl conection and the kernel 2.4.17????? In anyway, yesterday I conected the server to another machine ( on my house ) who has a ppp conection by modem, and there, the server works succesfully. In fact I have updated with apt-get the potato release of debian ( about 33 megas) from this poor conection. > -do you use IPTABLES as firewall under linux ? Do you have rules for ICMP > traffic ? No, I use Ipchains as firewall under linux only in the Firewall-machine. And I'm sure that I haven't any rule for ICMP packets. Do you think the problem is on the adsl-line? Do you think is an incompatibiliy problem between kernel 2.4.17 and fax or noises on the line? > > > > > > > ----- Original Message ----- > > From: "nn" <[EMAIL PROTECTED]> > > To: "Alberto Rodr�guez" <[EMAIL PROTECTED]> > > Sent: Wednesday, April 24, 2002 7:07 PM > > Subject: Re: Fw: Problems with lost packets > > > > > > > ok but your windows boxes MUST send correct sized packets WHEN these > > packets > > > are destination TO the internet. Example : connection to www.yahoo.com > > from > > > your windows machine : > > Yes but the problem is not with a windows machine! > > The problem is with a debian-linux machine.... > > > > linux-server-machine --> Linux-firewall-machine--> internet --> yahoo.com > > > > The problem is when I ping from linux-server-machine to Internet, not when > > I > > ping from a windows to internet. > > > > Do you understand? > > > > > > > > windows machine --> Linux Box --> internet -> Yahoo.com > > > > > > Your windows packets must be sized correctly. > > > > > > please read articles http://www.dslreports.com/ > > > > > > > > > > > > > > > > > > Quoting Alberto Rodr�guez <[EMAIL PROTECTED]>: > > > > > > > > > > > ----- Original Message ----- > > > > From: <[EMAIL PROTECTED]> > > > > To: "Alberto Rodr�guez" <[EMAIL PROTECTED]> > > > > Cc: <[EMAIL PROTECTED]> > > > > Sent: Wednesday, April 24, 2002 6:28 PM > > > > Subject: Re: Fw: Problems with lost packets > > > > > > > > > > > > > Try to set the MTU parameters correctly under your windows boxes. > > > > > > > > I can't understand, since the server is a linux-debian box not a > > windows > > > > box. > > > > > > > > > > > > > > > > > > > > > > > > > > stef > > > > > > > > > > > > > > > Quoting Alberto Rodr�guez <[EMAIL PROTECTED]>: > > > > > > > > > > > Hello, > > > > > > > > > > > > I'm having problems with packets from internet. > > > > > > > > > > > > I have a little network. theare are a firewall which masquerade all > > > > > > paquets. > > > > > > Now I have a server for web, email etc... > > > > > > > > > > > > The firewall have a adsl line. theare are about 10 windows > > machines > > > > which > > > > > > use internet conection by the firewall. > > > > > > > > > > > > All these machines ( the windows ones) use full internet without > > > > problems. > > > > > > But the server have a big problem whit packets... > > > > > > > > > > > > > > > > > > For instance, if I write ping www.gulic.org from the server, I get > > the > > > > > > follow: > > > > > > > > > > > > ping www.gulic.org > > > > > > PING www.gulic.org (193.145.135.17): 56 data bytes > > > > > > 64 bytes from 193.145.135.17: icmp_seq=0 ttl=237 time=157.7 ms > > > > > > 64 bytes from 193.145.135.17: icmp_seq=1 ttl=237 time=465.3 ms > > > > > > > > > > > > > > > > > > and I only can receive one or two response to the ping, after > > Ctrl+C > > I > > > > get > > > > > > the follow: > > > > > > > > > > > > --- www.gulic.org ping statistics --- > > > > > > 9 packets transmitted, 2 packets received, 77% packet loss > > > > > > round-trip min/avg/max = 157.7/311.5/465.3 ms > > > > > > > > > > > > The problem is only if I ping to a exterior IP. If I ping to an > > > > internal > > > > > > one, the response of ping is normal: > > > > > > > > > > > > ping 10.0.0.64 > > > > > > PING 10.0.0.64 (10.0.0.64): 56 data bytes > > > > > > 64 bytes from 10.0.0.64: icmp_seq=0 ttl=128 time=0.7 ms > > > > > > 64 bytes from 10.0.0.64: icmp_seq=1 ttl=128 time=0.6 ms > > > > > > 64 bytes from 10.0.0.64: icmp_seq=2 ttl=128 time=0.7 ms > > > > > > 64 bytes from 10.0.0.64: icmp_seq=3 ttl=128 time=0.7 ms > > > > > > 64 bytes from 10.0.0.64: icmp_seq=4 ttl=128 time=0.7 ms > > > > > > 64 bytes from 10.0.0.64: icmp_seq=5 ttl=128 time=0.7 ms > > > > > > 64 bytes from 10.0.0.64: icmp_seq=6 ttl=128 time=0.7 ms > > > > > > > > > > > > --- 10.0.0.64 ping statistics --- > > > > > > 7 packets transmitted, 7 packets received, 0% packet loss > > > > > > round-trip min/avg/max = 0.6/0.6/0.7 ms > > > > > > servidor:~# > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > The server have a pci ethernet with the 8029 realtek chip. > > > > > > > > > > > > The server have a 2.4.18 kernel with xfs journaling support. > > > > > > > > > > > > The irq of the ethernet is 10 and is shared with the usb port. > > > > > > > > > > > > > > > > > > Could anyone help me with this problem? > > > > > > > > > > > > Sorry for my bad English and thanks in advance. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > > > > > with a subject of "unsubscribe". Trouble? Contact > > > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > -- > > > > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > > > > with a subject of "unsubscribe". Trouble? Contact > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
