[2143] in RedHat Linux List
Strange PPP Problem
daemon@ATHENA.MIT.EDU (Dennis K. Moore)
Thu Oct 31 21:54:17 1996
Date: Thu, 31 Oct 1996 21:51:44 -0500
To: redhat-list@redhat.com
From: "Dennis K. Moore" <dmoore@ravens-nest.com>
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
I have the strangest PPP problem. Any help is greatly appreciated. :-D
Configuration:
28.8k 10BaseT T1
Workstation -------> Server ----------> Router ------------> Internet
OS:Win95 Linux 2.0
IP:XXX.160 XXX.140 XXX.1
I have the Linux Server setup using PPPlogin. The PPP connection works fine
between the workstation and the server. I can send mail, telnet, ftp, httpd
between the workstation and server.
Here's the problem: I have erratic communications between the workstation
and the Internet directly. I can ping all hosts on the Internet. However,
when I run my web browser, I can only access some of the sites. This got me
curious. So I ran tcpdump to monitor the connection as I run my web browser
on the workstation to the Internet. The packets are getting out to the
Internet because the hosts are responding. I don't understand why some
responses get back to the workstation and others stay at the server and
don't get routed to the workstation.
I suspect the problem is in my ARP/route table. BTW, I am running virtual
hosting on the server. All is well with virtual hosting.
The following is the output from our Class C XXX.XXX.XXX.0 Network
[root@ravenmaster dmoore]# route -n
Kernel routing table
Destination Gateway Genmask Flags MSS Window Use Iface
XXX.XXX.XXX.220 * 255.255.255.255 UH 1500 0 0 dummy0
XXX.XXX.XXX.206 * 255.255.255.255 UH 1500 0 0 dummy1
XXX.XXX.XXX.231 * 255.255.255.255 UH 1500 0 0 dummy2
XXX.XXX.XXX.207 * 255.255.255.255 UH 1500 0 0 dummy3
XXX.XXX.XXX.68 * 255.255.255.255 UH 1500 0 0 dummy4
XXX.XXX.XXX.67 * 255.255.255.255 UH 1500 0 0 dummy5
XXX.XXX.XXX.99 * 255.255.255.255 UH 1500 0 0 dummy6
XXX.XXX.XXX.140 * 255.255.255.255 UH 1500 0 0 eth0
XXX.XXX.XXX.160 * 255.255.255.255 UH 296 0 1 ppp0
XXX.XXX.XXX.0 * 255.255.255.0 U 1500 0 1984 eth0
127.0.0.0 * 255.0.0.0 U 3584 0 3450 lo
default XXX.XXX.XXX.1 * UG 1500 0 2471 eth0
Thanks in advance,
Dennis
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