?
Solved

RH6.0 network problems...

Posted on 2000-02-24
9
Medium Priority
?
466 Views
Last Modified: 2013-12-15
I just installed rh6.0 and I have problems configuring the 2 3c509 ethernet cards. Just for now, I'm using the ip-addresses 10.100.66.57 and 10.100.66.58 with submask 255.255.252.0.
pinging to both addresses works. (to 127.0.0.1 also). But pinging to a computer on the local network works not.
With ifconfig, i can only see eth0 and lo, not eth1. When I disable one of the cards, using netconf, pinging from the other computer works, but when I ping from the linuxbox to the other computer, ping receives the packets twice!! pinging to the two addresses 57 and 58 works fine. (no double receives).
When disabling eth0 with netconf, ifconfig shows eth1 and lo, as expected.

Any Idea's? Please comments only, I will decide hwo's comment is worth the points.
0
Comment
Question by:940961sl
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
9 Comments
 
LVL 40

Expert Comment

by:jlevie
ID: 2555072
Well of course. You can't have two NIC's configured for the same network & protocols. You set them boot up to be in 10.100.66.0/24 network.
0
 
LVL 1

Author Comment

by:940961sl
ID: 2557063
I believe I tried it with 2 different network addresses before, with the same result, but I'll doublecheck. In fact, at the end, one card will listen to a dhcp server, and the second will be something like 192.168.1.1, but in this little testenvironment, i don't have a dhcp server and the network has address 10.100.66 so that's why I tried those two address. I'll change them.

In the mean time, any other suggestions?
0
 
LVL 40

Accepted Solution

by:
jlevie earned 800 total points
ID: 2557363
Have you configured each of the 3c509's for different IRQ's and I/O ports and properly aliased them in /etc/modules.conf (see the section on 2 NIC's in http://howto.tucows.com/LDP/HOWTO/Ethernet-HOWTO.html). Also if the cards are 3c905b's you need to disable PnP on the cards. You configure the cards with 3Com's configuration tool (3c5x9cfg.exe), typically supplied on diskette with the cards and also available from their web site (http://support.3com.com/infodeli/tools/nic/3c509.htm#ship)
0
 [eBook] Windows Nano Server

Download this FREE eBook and learn all you need to get started with Windows Nano Server, including deployment options, remote management
and troubleshooting tips and tricks

 
LVL 1

Expert Comment

by:tknayak
ID: 2560434
what ur modprobe eth1 says?
0
 
LVL 2

Expert Comment

by:nirsim
ID: 2561273
Hi All,

  You are shooting at the wrong target. The 3c509 card is an ISA based NIC, with which RH6.0 has serious problems. Which means the following, due to an error in bridge.c in the RH6.0 distribution, it can't handle ISA based ethernet cards. I know this cause I suffered from it myself, and only a visit to www.redhat.com had given me the answer.

  My advice is, move to RH6.1

Regards,
  Nir Simionovich
  artNET Experts, Ltd
  Israel
0
 
LVL 40

Expert Comment

by:jlevie
ID: 2561383
Let's not be too hasty... the 3c509 is on the HCL for RH 6.0 and I know that others have and are using it successfully. I may not be searching for the right thing, but I can't find anything on RedHat's site that indicates a problem... nirsim, wanna provide a reference?
0
 
LVL 1

Author Comment

by:940961sl
ID: 2564064
Thanks for the response.
I solved the problem now. It was not due to the fact that the addresses belonged to the same network address, and it was not because RH6.0 can't work with ISA based NIC's. But it was like jlevie's second responce : both the cards were on irq 10, io-address 300. The cards i have came from a friend without any disks or documentation so I didn't know how to check or how to change the irq and io-address. 3c5x9cfg.exe did the truc. jlevie, please answer the question because i don't see the accept comment as an answer button anywhere...

And please, check out my next question :-)
0
 
LVL 1

Author Comment

by:940961sl
ID: 2564081
Sorry nirsim,
I asked not to answer the question, and your aswer is totally wrong, so I have to reject it...
0
 
LVL 1

Author Comment

by:940961sl
ID: 2564083
Aha, thats why I didn't see the accept comment as answer ...
0

Featured Post

Fill in the form and get your FREE NFR key NOW!

Veeam® is happy to provide a FREE NFR server license to certified engineers, trainers, and bloggers.  It allows for the non‑production use of Veeam Agent for Microsoft Windows. This license is valid for five workstations and two servers.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It’s 2016. Password authentication should be dead — or at least close to dying. But, unfortunately, it has not traversed Quagga stage yet. Using password authentication is like laundering hotel guest linens with a washboard — it’s Passé.
Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Suggested Courses

649 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question