Re: [debian-knoppix] Can connect to ISP but can't connect to Internet (Former re: Modem problem)

[Stephen Liu <satimis@icare.com.hk>]

Hi Jean-Luc,

I carried further tests as follows;

Connected ADSL
==============

root@ttyp0[root]# ifconfig ppp0
ppp0      Link encap:Point-to-Point Protocol
          inet addr:202.123.68.1  P-t-P:202.123.71.254 
Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:64 (64.0 b)  TX bytes:97 (97.0 b)

root@ttyp2[root]# ping 202.123.68.1
PING 202.123.68.1 (202.123.68.1): 56 data bytes
64 bytes from 202.123.68.1: icmp_seq=0 ttl=64 time=0.2 ms
64 bytes from 202.123.68.1: icmp_seq=1 ttl=64 time=0.1 ms
64 bytes from 202.123.68.1: icmp_seq=2 ttl=64 time=0.0 ms
64 bytes from 202.123.68.1: icmp_seq=3 ttl=64 time=0.0 ms
64 bytes from 202.123.68.1: icmp_seq=4 ttl=64 time=0.1 ms
......

Started Konqueror
Try URL: http://202.123.68.1
Following warning popup:
An error occurred while loading http://202.123.68.1:
Could not connect to host 202.123.68.1

Tested on following IP address;

root@ttyp0[root]# ping -c1 80.237.200.164
PING 80.237.200.164 (80.237.200.164): 56 data bytes

--- 80.237.200.164 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss
root@ttyp0[root]# ping -c1 213.95.15.200
PING 213.95.15.200 (213.95.15.200): 56 data bytes

--- 213.95.15.200 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss
root@ttyp0[root]# ping -c1 194.112.123.200
PING 194.112.123.200 (194.112.123.200): 56 data bytes

--- 194.112.123.200 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss
root@ttyp0[root]# ping -c1 192.18.87
PING 192.18.87 (192.18.0.87): 56 data bytes

--- 192.18.87 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss
root@ttyp0[root]# ping -c1 217.72.195.42
PING 217.72.195.42 (217.72.195.42): 56 data bytes

root@ttyp0[root]# cat /etc/resolv.conf
nameserver 202.123.77.209
nameserver 202.123.77.213

ISP nameserver IP shown

root@ttyp3[root]# poff
root@ttyp3[root]# ifconfig ppp0
ppp0: error fetching interface information: Device not found
root@ttyp3[root]# pon
root@ttyp3[root]# ifconfig ppp0
ppp0      Link encap:Point-to-Point Protocol
          inet addr:202.123.68.1  P-t-P:202.123.71.254 
Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:64 (64.0 b)  TX bytes:97 (97.0 b)

Still could not find out the cause.

B.Regards
Stephen


On Thu, 2003-07-31 at 18:27, Jean-Luc Coulon (f5ibh) wrote:
> Hi,
> 
> When there are more than one pppd running you have to pass the command 
> poff -a  (as root).
> 
> Then retry the operation : connect / check the dns / try to surf
> 
> ---
> Regards
> 	Jean-Luc
> 
> On 31.07.2003 10:55, Stephen Liu wrote:
> > Hi Jean-Luc,
> > 
> > On Wed, 2003-07-30 at 19:44, Jean-Luc Coulon (f5ibh) wrote:
> > 
> > > Your problem seems to be a dns problem.
> > > You should have a /etc/ppp/options file
> > > Add a line :
> > > usepeerdns
> > 
> > As advised.  Use Midnight Commander (mc) to add the above line to
> > /etc/ppp/options (I am not allowed to use kedit)
> > 
> > Start configuring ADSL and connect to ISP.  DNS added automatically
> > without asking for
> > 
> > # cat /etc/resolv.conf
> > nameserver 202.123.77.209
> > nameserver 202.123.77.213
> > 
> > 
> > root@ttyp0[root]# ifconfig ppp0
> > ppp0      Link encap:Point-to-Point Protocol
> >           inet addr:202.123.68.95  P-t-P:202.123.71.254
> > Mask:255.255.255.255
> >           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
> >           RX packets:7 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:3
> >           RX bytes:208 (208.0 b)  TX bytes:97 (97.0 b)
> > 
> > ISP connected but still fail to connect to Internet.
> > 
> > root@ttyp0[root]# poff
> > /usr/bin/poff: More than one pppd running and no -a option and
> > no arguments supplied. Nothing stopped.
> > 
> > I am not allowed to disconnect.
> > 
> > B.Regards
> > Stephen

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