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Old 01-21-2003, 04:17 AM   #1
Zingaro2002
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2 static IP addresses on 2 eth cards


Hi everybody.
I have a Linux Red Hat 7.3 server box with 2 eth cards.
I'd like to assign a static IP address to the first one and another static IP address to the second one.
I've tried using Control Panel->Network configuration, but when I activate both cards no-one works (I've tried to ping from another machine but I receive No Reply).
It works fine if I activate only the first eth card alone.
Is there any configuration file I should manipulate?
How?

Can someone help me, please?
 
Old 01-21-2003, 04:20 AM   #2
acid_kewpie
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it should work fine if you are using correct subnets and so forth, if you use overlapping subnets though the first one will be stopped delibertaley, as it would not make sense to have them both working.
 
Old 01-21-2003, 04:30 AM   #3
Zingaro2002
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Well... they have both the same gateway address and the same subnet mask.
Is this wrong? (excuse me... I'm a newbie)
How should I correct this?

I need to have both working since this machine must handle 2 websites having 2 different static IP addresses.

Many thanks for your help!!!
 
Old 01-21-2003, 07:47 AM   #4
acid_kewpie
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you're using the same gateway for two NIC's on the same system? what is the benefit in that? are you thinking that two NIC's will make your connection twice as fast or something? you can not have two NIC's connected to the same subnet. Ethernet is a bus protocol and so you are just completely breaking the design principles. most people break this by thinking they can take two NIC's and join two other computers directly together with this, by you seem to be saying you're joining them to the very same hub or such like.

to have two cards working they will need to be on compltely different subnets.
 
Old 01-21-2003, 10:20 AM   #5
Zingaro2002
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Thanks for your help, acid_kewpie, but... how have I to change those subnets (Red Hat 7.3)?
Keep in mind that the two eth cards are in the same computer and that I'm almost newbie with these issues!

Thank you very much for any other suggestion!
 
Old 01-21-2003, 01:00 PM   #6
Zingaro2002
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THANK YOU acid_kewpie!!!

I solved my problem: i set 255.255.255.240 as subnet mask for the first eth card (eth0) and 255.255.255.245 as subnet mask for the second eth card (eth1) and... IT WORKED PERFECTLY!

Thanks again.
 
Old 01-21-2003, 01:06 PM   #7
acid_kewpie
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np

hey if it's worth capitals... affero me!
 
Old 01-21-2003, 01:10 PM   #8
Zingaro2002
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i'll do it immediately.
Bye
 
Old 01-21-2003, 01:16 PM   #9
acid_kewpie
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super!
 
  


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