Hi all!
System COnfiguration:
2 x DEC Alpha 1000 4/266, hardware completely identical, Digital Unix 4.0 D
Each has two Ethernetcards, 1 pci (tu1) and 1 ISA (tu0).
Both machines are connected to our local intranet using tu1 and everything
is working fine.
PROBLEM:
Now i wanted to connect both machines via tu0, assigning an ip address
using ifconfig and connecting the cards using a 5 feet coax wire with T -
connectors and terminal resistors (so it should work i guess). (REASON:
Both machines are syncing their data using rsync and thus swapping a lot of
data. I dont want to use the intranet for that cause it slows the traffic
there considerably down).
I used lan_config to switch the tu0īs to bnc mode and ifconfig to set the
ip adresses (xxx.yyy.105.80 and xxx.yyy.105.90), netmasks (255.255.255.0)
and broadcast adresses (xxx.yyy.105.255).
Interfaces are up and running.
Now added the entry "-host xxx.yyy.105.80 xxx.yyy.105.90" and vice versa in
the /etc/routes, the lan_config and ifconfig lines in /etc/inet.local and
the entry for tu0 in /etc/rc.config, rebooted - and the machine was stuck.
I could telnet it from another machine, but the CDE didnt start, and the
samba and httpd services were unreachable (except from the subnet
xxx.yyy.105.nnn - from where (strange enough) obviously everything worked,
i.e. all machines in subnet 105 COULD use httpd, smbd and so on while
machines from other subnets could NOT). Connecting via telnet to the
machine trying to ping another server FROM the machine resulted in an error.
I restored the original configuration, rebooted, and we are up and running
again. I guess i have produced a severe routing problem - but i have no
idea where. Any hints? I suspect that either the /etc/routes or the
/etc/rc.config were messed up, but i stuck to the rules of the man page....
Thanx and regards
YS, CW
------------------------------------------
Dr. Christian Wessely
christian.wessely_at_kfunigraz.ac.at
url: www-theol.kfunigraz.ac.at
PGP Public Keys deposed there
Received on Wed Jan 17 2001 - 08:20:18 NZDT