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

[kdj1@ticnet.com]

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....
>PGP/GPG key -- http://home.comcast.net/~joe.beasley/joebeasley.txt
>AOL Messenger joebeasley3rd
>Yahoo Messenger joe_beasley
>MSN Messenger joebeasley3rd
>
>
>  
>