[818] in SIPB_Linux_Development
Bug in linux kernel 1.1.65
daemon@ATHENA.MIT.EDU (nocturne@MIT.EDU)
Thu Nov 24 01:48:59 1994
From: nocturne@MIT.EDU
Date: Thu, 24 Nov 1994 01:48:48 -0500
To: Linus.Torvalds@Helsinki.FI
Cc: nocturne@MIT.EDU
Hello. I have been observing a consistent bug in my network interactions,
which seems to be caused by network changes between the 1.1.64 linux kernel
and the 1.1.65 linux kernel.
The short description of this problem is that I get "Network is unreachable"
errors when I attempt to use any of a number of basic programs which connect
to sockets to certain other IP addresses. The different methods I've used to
get the same error seem to be various network client programs which need to
open a socket to the remote machine. These include telnet, finger, ftp, and
a finger client I wrote in perl (it fails on connect() ).
ping and traceroute have no problems in dealing with these IP addresses.
Among the addresses I've been unable to reach are:
18.70.0.{224-239}
18.208.0.{224-239}
Having spent a minute or so testing random IP addresses ending in numbers
between 224 and 239, it seems that I get this same error message for any IP
address of the format *.*.*.{224-239} .
There may be other IP addresses which generate this error. I didn't have
much inclination to test this exhaustively. :-)
If you need me to run more test cases, feel free to ask me for assistance.
If you need an account on my computer to test this, feel free to ask me for
one. :-)
Otherwise, I'd appreciate hearing about the details of the errors in the new
network code in the 1.1.65 kernel... :-)
A few details of my system and network configuration:
* I'm running a 1.1.65 kernel, compiled from an unmodified kernel source
tree ftp'd from tsx-11.mit.edu:/pub/linux/sources/system/v1.1
* I'm on a class A network
* I'm currently using the linux-AFS loadable kernel modules
- Eric
