[NTLUG:Discuss] PPP Internet connection problems - Mandrake 9.1

joseph beasley joe_beasley at yahoo.com
Mon Mar 22 08:55:51 CST 2004


Yes, that is the expected response for stopping iptables.  Don't know
what else to try, though.

--- kdj1 at ticnet.com wrote:
> Joseph,
> 
> Prior to trying to shutdown the firewall, the following were true:
> 1.  The dns servers were being added to /etc/ppp/resolve.conf (by 
> whatever added them - kppp, I assume)  I found this in earlier poking
> 
> around.
> 2.  The ping commands were causing the bytes out and packets out
> counts 
> in kpp statistics to increment up.  Bytes in and packets in counts
> did 
> not change.  Output going into a black hole...
> 
> After connecting through kppp this time, I su'd and executed <
> service 
> iptables stop >. The command returned:  < Resetting built-in chains
> to 
> the default ACCEPT policy:     [ OK ]  > and returned to the prompt.
> 
> Subsequent pings to the reported P-t-P addr had no change in result. 
> 
> 100% packet loss.  Still a black hole...
> 
> Is that the expected message for the < service iptables stop >
> command?  
> Or is the 'default ACCEPT policy' still blocking any incoming
> packets?
> 
> Anything else to try?
> 
> Best regards,
> 
> Dan F.
> 
> 
> joseph beasley wrote:
> 
> >Your firewall causes the "operation not permitted" messages..
> >
> >  service iptables stop
> >
> >
> >Then try your pings.   After connecting with kppp, check
> >/etc/resolv.conf to see if the dns servers are being added.  You are
> >getting the default route correctly.
> >
> >
> >--- kdj1 at ticnet.com wrote:
> >  
> >
> >>I am unable to connect to the Internet on my machine using Mandrake
> 
> >>9.1.  LAN is fine, but internet connection is dialup and cannot
> ping.
> >>
> >>Symptoms:  KPPP functions normally and reports connection and IP
> >>addr.  
> >>Mozilla cannot find host.  Lan pings work, net pings fail.  Netstat
> >>and 
> >>ifconfig report same IP addrs as KPPP, so it appears to me that the
> 
> >>connection is being made.
> >>
> >>What might I have misconfigured?  I would appreciate any hints or 
> >>pointers to a solution.
> >>
> >>Regards,
> >>
> >>Dan F.
> >>
> >>KPPP stats, ping results, netstat results, and ifconfig results are
> >>below.
> >>
> >>KPPP executes handshake & connection,
> >>KPPP statistics reports:
> >>local address 207.53.228.68
> >>remote address 206.176.148.90
> >>bytes in  498       bytes out  87
> >>packets in 12       packets out 4
> >>vjcomp in  0        vjcomp out  0
> >>vjunc in  0         vjjnc out  0
> >>vjerr  0            non-vj  4
> >>
> >>====================================
> >>Internet pings fail:
> >>
> >>[user1 at localhost user1]$ ping www.yahoo.com
> >>ping: unknown host www.yahoo.com
> >>
> >>[user1 at localhost user1]$ ping 207.53.228.68
> >>ping: icmp open socket: Operation not permitted
> >>
> >>[user1 at localhost user1]$ ping 206.176.148.90
> >>ping: icmp open socket: Operation not permitted
> >>
> >>Pinging ISP DNS results in same 'icmp open socket' error msg.
> >>
> >>Lan pings work:
> >>
> >>[root at localhost user1]# ping 10.0.0.2
> >>PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
> >>64 bytes from 10.0.0.2: icmp_seq=1 ttl=128 time=12.2 ms
> >>64 bytes from 10.0.0.2: icmp_seq=2 ttl=128 time=18.0 ms
> >>64 bytes from 10.0.0.2: icmp_seq=3 ttl=128 time=0.588 ms
> >>64 bytes from 10.0.0.2: icmp_seq=4 ttl=128 time=0.595 ms
> >>
> >>=======================================
> >>netstat -rn  results:
> >>
> >>[user1 at localhost user1]$ netstat -rn
> >>Kernel IP routing table
> >>Destination     Gateway         Genmask         Flags   MSS Window 
> >>irtt 
> >>Iface
> >>206.176.148.90  0.0.0.0         255.255.255.255 UH        0 0      
>  
> >> 0 
> >>ppp0
> >>10.0.0.0        0.0.0.0         255.0.0.0       U         0 0      
>  
> >> 0 
> >>eth0
> >>127.0.0.0       0.0.0.0         255.0.0.0       U         0 0      
>  
> >> 0 lo
> >>0.0.0.0         206.176.148.90  0.0.0.0         UG        0 0      
>  
> >> 0 
> >>ppp0
> >>
> >>==========================================
> >>ifconfig results:
> >>
> >>[root at localhost user1]# ifconfig
> >>eth0      Link encap:Ethernet  HWaddr 00:40:F4:5C:AE:B5
> >>          inet addr:10.0.0.1  Bcast:10.255.255.255  Mask:255.0.0.0
> >>          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >>          RX packets:62 errors:0 dropped:0 overruns:0 frame:0
> >>          TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
> >>          collisions:0 txqueuelen:100
> >>          RX bytes:6395 (6.2 Kb)  TX bytes:1386 (1.3 Kb)
> >>          Interrupt:11 Base address:0x2000
> >>
> >>lo        Link encap:Local Loopback
> >>          inet addr:127.0.0.1  Mask:255.0.0.0
> >>          UP LOOPBACK RUNNING  MTU:16436  Metric:1
> >>          RX packets:50 errors:0 dropped:0 overruns:0 frame:0
> >>          TX packets:50 errors:0 dropped:0 overruns:0 carrier:0
> >>          collisions:0 txqueuelen:0
> >>          RX bytes:3652 (3.5 Kb)  TX bytes:3652 (3.5 Kb)
> >>
> >>ppp0      Link encap:Point-to-Point Protocol
> >>          inet addr:207.53.228.68  P-t-P:206.176.148.90  
> >>Mask:255.255.255.255
> >>          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1524 
> Metric:1
> >>          RX packets:6 errors:0 dropped:0 overruns:0 frame:0
> >>          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
> >>          collisions:0 txqueuelen:3
> >>          RX bytes:210 (210.0 b)  TX bytes:87 (87.0 b)
> >>
> >>=====================================
> >>
> >>
> >>_______________________________________________
> >>https://ntlug.org/mailman/listinfo/discuss
> >>    
> >>
> >
> >
> >=====
> >Joe Beasley
> >CNE, CCNP, MCSE, CCNA, AEIOU....
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> >
> >  
> >
> 
> 
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=====
Joe Beasley
CNE, CCNP, MCSE, CCNA, AEIOU....
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