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Elec490 08-30-2005 04:08 PM

problem with network interface
Hi guys,

I have a ce (quad giga swift card) and an eri interface. I set them up using the ifconfig command (plumb and up). I get the correct info when I do ifconfig -a. Say I activate the eri0, ce0, and ce3 ports.

My problem is: I can connect rempotely to the Server only via one port!!!!!

For example when all three interfaces are up I can only connect with one...if I unplumb 2 and leave only one..then I can connect through this one...why is this happenind?!? any idea?

Elec 490

jlliagre 08-31-2005 12:37 AM


I get the correct info when I do ifconfig -a.
Would you mind sharing it ?

My problem is: I can connect rempotely to the Server only via one port!
What happen with the others ?
Have you snooped the network traffic ?

Elec490 08-31-2005 08:55 AM

tnx for answering..

1) ifconfig -a:

# ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet netmask ff000000
ce0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet netmask ffffffc0 broadcast
ether 0:3:ba:b2:f0:78
ce3: flags=1000803<UP,BROADCAST,MULTICAST,IPv4> mtu 1500 index 3
inet netmask ffffffc0 broadcast
ether 0:3:ba:b2:f0:7b
eri0: flags=1000803<UP,BROADCAST,MULTICAST,IPv4> mtu 1500 index 4
inet netmask ffffffc0 broadcast
ether 0:3:ba:cd:8:a1

2) I cannot telnet using the other 2 ports...I mean.if ce0 is there I can onlyuse ce0...if I remove ce0 then I can nly use ce3..if I remove ce3 also and keep only eri0 I can connect using eri0..

hope this helps.

jlliagre 08-31-2005 09:27 AM

What do you mean by "I cannot telnet using the other 2 ports." ?

Elec490 08-31-2005 01:35 PM


I have been told that it is not possible to have two different ethernet interfaces on the same that true??


ce0 =>

this is not possible..and it seems they are u agree?

jlliagre 08-31-2005 03:32 PM

I definitely do not agree.
It is obviously possible to have many interfaces on the same network, and even recommended when high availability is needed.

ttang99 09-02-2005 07:57 AM

Can you also show the netstat -rn?

And make sure that your network routing information is correct?

Also can you ping the interfaces?

There is absolutely no reason why you cant have 2 or more interfaces on the same network segment.

cwolf 09-06-2005 02:15 AM


ce3: flags=1000803<UP,BROADCAST,MULTICAST,IPv4>
As you can see, this interface is missing the flag "RUNNING".
This means that not all required resources are available.
What does `dmesg`say?
I assume it is a driver problem.
What does `modinfo | grep CE`say?

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