Problems With A PPP Dial-Up Connection
From: Byron Hillis (b_hillis_at_optusnet.com.au)
Date: 03/17/05
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To: <debian-user@lists.debian.org> Date: Thu, 17 Mar 2005 23:45:10 +1100
Hi everybody,
Okay, so I want to set up a normal dial-up connection to my ISP (no
broadband yet unfortunately). I found this HOWTO
http://www.aboutdebian.com/modems.htm and followed all the steps. But as you
might have guessed, it doesn't work.
Specs:
Debian Woody 3.0
2.4.18-bf2.4
Connected on the LAN via eth0.
Modem: Netcomm Roadster II 56Ultra connected via ttyS1
Here's the problem. The modem works fine (or so I think), and dials in and
connects as per expected. But then no connections seem to work. Pings and
Lynx don't work to the other end of the ppp connection, or any of my service
providers DNS servers. Pings work to local public IP. I tried adding the
default route as suggested in the HOWTO and also added my nameservers. When
I type _route_ to get the list of route's it takes about 30 secs for
anything other than the headers to come up. But _dig_ works. I also noticed
that it seems to disconnect after a while (maybe 10 mins) and then
automatically reconnects (as it should). Not sure what's going on there.
Here's some useful info...
(INFO CHANGED TO PROTECT THE INNOCENT)
/etc/resolv.conf --------------->
search optusnet.com.au.
nameserver 1.2.3.4
nameserver 1.2.3.5
<--------------------------
/etc/chatscripts/provider --------------->
ABORT BUSY
ABORT "NO CARRIER"
ABORT VOICE
ABORT "NO DIALTONE"
"" ATZW2
OK ATDT123456789
ogin username
word \qpassword
<--------------------------
/etc/ppp/peers/provider --------------->
# You usually need this if there is no PAP authentication
noauth
# The chat script (be sure to edit that file, too!)
connect "/usr/sbin/chat -v -f /etc/chatscripts/provider"
# Set up routing to go through this PPP link
defaultroute
# Default modem (you better replace this with /dev/ttySx!)
/dev/ttyS1
# Speed
115200
# Keep modem up even if connection fails
persist
<--------------------------
Output from route BEFORE pon (no delay) ---------------->
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
localnet * 255.255.255.0 U 0 0 0 eth0
default remnant 0.0.0.0 UG 0 0 0 eth0
<-------------------------------------
Output from ifconfig AFTER pon ---------------->
eth0 Link encap:Ethernet HWaddr 00:20:18:A1:39:08
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:579 errors:0 dropped:0 overruns:0 frame:0
TX packets:1382 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:57285 (55.9 KiB) TX bytes:104983 (102.5 KiB)
Interrupt:9 Base address:0xaf00
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:292 errors:0 dropped:0 overruns:0 frame:0
TX packets:292 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:26389 (25.7 KiB) TX bytes:26389 (25.7 KiB)
ppp0 Link encap:Point-to-Point Protocol
inet addr:10.10.10.10 P-t-P:1.1.1.1 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:168 errors:0 dropped:0 overruns:0 frame:0
TX packets:181 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:26736 (26.1 KiB) TX bytes:12613 (12.3 KiB)
NOTE: Is there something strange about the ppp0 mask? Just guessing?
<-------------------------------------
Output from route AFTER pon (30s delay) (No extra routing added)
---------------->
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
203.164.5.254 * 255.255.255.255 UH 0 0 0 ppp0
localnet * 255.255.255.0 U 0 0 0 eth0
default remnant 0.0.0.0 UG 0 0 0 eth0
<-------------------------------------
Output from dig www.debian.org (No extra routing added) ---------------->
; <<>> DiG 9.2.1 <<>> www.debian.org
;; global options: printcmd
;; connection timed out; no servers could be reached
<-------------------------------------
Output from route AFTER pon (30s delay) (Extra routing added)
---------------->
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
203.164.5.254 * 255.255.255.255 UH 0 0 0 ppp0
localnet * 255.255.255.0 U 0 0 0 eth0
default * 0.0.0.0 U 0 0 0 ppp0
default remnant 0.0.0.0 UG 0 0 0 eth0
<-------------------------------------
Output from dig www.debian.org (Extra routing added) ---------------->
; <<>> DiG 9.2.1 <<>> www.debian.org
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15798
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 1
;; QUESTION SECTION:
;www.debian.org. IN A
;; ANSWER SECTION:
www.debian.org. 1257 IN A 194.109.137.218
;; AUTHORITY SECTION:
debian.org. 1257 IN NS spohr.debian.org.
debian.org. 1257 IN NS klecker.debian.org.
debian.org. 1257 IN NS newsamosa.debian.org.
debian.org. 1257 IN NS saens.debian.org.
;; ADDITIONAL SECTION:
newsamosa.debian.org. 1257 IN A 208.185.25.35
;; Query time: 147 msec
;; SERVER: 210.49.20.209#53(211.29.132.12)
;; WHEN: Thu Mar 17 23:21:12 2005
;; MSG SIZE rcvd: 150
<-------------------------------------
Output from ping -v 1.2.3.4 (Extra routing added - DNS IP) ---------------->
PING 1.2.3.4 (1.2.3.4): 56 data bytes
ping: packet too short (56 bytes) from 1.1.1.1
ping: packet too short (56 bytes) from 1.1.1.1
ping: packet too short (56 bytes) from 1.1.1.1
ping: packet too short (56 bytes) from 1.1.1.1
--- 1.1.1.1 ping statistics ---
4 packets transmitted, 0 packets received, 100% packet loss
NOTE: 1.1.1.1 is the other end of the PPP connection.
<-------------------------------------
Thanks for your help. This problem is a real pain to debug, cause I have to
boot into windows to go on the net to look for information, then jump back,
try the new info and repeat the process.
Byron
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- Previous message: Chris Boot: "[ANN] PicoDebian: a thinned down version of Debian Sarge"
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