100% packet loss on ping -- PPP/Slackware

100% packet loss on ping -- PPP/Slackware

Post by Wraith- » Sun, 18 May 1997 04:00:00



Hi,

I've been trying to get out onto the internet thru Linux with PPP.  I'm
working on connecting manually until I get all the kinks worked out.
Basically, I dial out thru xminicom and get a ppp session going with my
isp.  I close xminicom without resetting the line, and then from an xterm
window type in

pppd /dev/cua1

I then type in

ifconfig ppp0

This shows that I have an ip address assigned to me and that Point-to-Point
is UP AND RUNNING.

One thing I've noticed at this point is that I get RX and TX errors.

Anyway, when I try to ping an ip address, I get 100% packet loss.

I have Slackware 96 (based on Linux 2.0.0).  Any ideas?  I'd appreciate the
input!

Joe Helton

 
 
 

100% packet loss on ping -- PPP/Slackware

Post by Wally Barn » Wed, 21 May 1997 04:00:00


: Hi,

: I've been trying to get out onto the internet thru Linux with PPP.  I'm
: working on connecting manually until I get all the kinks worked out.
: Basically, I dial out thru xminicom and get a ppp session going with my
: isp.  I close xminicom without resetting the line, and then from an xterm
: window type in

: pppd /dev/cua1

Try : pppd -d /dev/cua1 crtscts defaultroute

: I then type in

: ifconfig ppp0

It might not hurt to also type in:
                route add default gw <IP assigned from ISP>
                route add <your host name> gw <IP from ISP>
These lines finally got it so I could successfully telnet, ftp, etc
Good Luck
Wally Barnes

: This shows that I have an ip address assigned to me and that Point-to-Point
: is UP AND RUNNING.

: One thing I've noticed at this point is that I get RX and TX errors.

: Anyway, when I try to ping an ip address, I get 100% packet loss.

: I have Slackware 96 (based on Linux 2.0.0).  Any ideas?  I'd appreciate the
: input!

: Joe Helton

 
 
 

1. PPP, ping and 100% packet loss

I am using minicom to dial into my ISP, at which point I run pppd with
the defaultroute option.  I have been following The Linux Users
Guide(?) from sunsite which suggests to first establish a connection
without scripts.  Well, after connecting I am unable to ping.  Here
are some of the outputs I get:

#ifconfig
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
          UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
          RX packets:43 errors:0 dropped:0 overruns:0 frame:0
          TX packets:43 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0

ppp0      Link encap:Point-to-Point Protocol  
          inet addr:206.180.128.118  P-t-P:204.52.135.15
Mask:255.255.255.0
          UP POINTOPOINT RUNNING  MTU:552  Metric:1
          RX packets:17 errors:0 dropped:0 overruns:0 frame:0
          TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0
          Memory:689e830-689ec94

#route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags  Use Iface
204.52.135.15   0.0.0.0    255.255.255.255  UH       1 ppp0
127.0.0.0       0.0.0.0         255.0.0.0              U        2  lo
0.0.0.0         204.52.135.15   0.0.0.0         UG           0 ppp0

Note: I remove two columns for this post: Metric and Ref which both
had values of zero.

#ping 204.52.135.15
PING 204.52.135.15 (204.52.135.15): 56 data bytes

--- 204.52.135.15 ping statistics ---
11 packets transmitted, 0 packets received, 100% packet loss

I really don't know what to do.  I would appreciate any help.  Thanks.

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