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Dnia poniedzia³ek, 11 grudnia 2006 18:34, Leandro Melo de Sales napisa³: |
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|
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> config_eth0=( "192.168.1.2 netmask 255.255.255.0" |
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> "192.168.1.3 netmask 255.255.255.0" |
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> "192.168.1.6 netmask 255.255.255.0" |
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> ) |
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Well, it is a design flaw to have 3 addresses in overaping networks. From what |
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I recall you may use only one non /32 address in a network. If the |
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requirement is not met, problems arise: |
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|
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Problem: You want to broadcast to 192.168.1.255. |
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Question: From which of these addresses should it origin? |
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|
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Problem: Someone else broadcasts to 192.168.1.255. |
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Question: Which of these addresses should catch it? One? All? |
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I was taught that configurations of multiple-ip-per-net should look like: |
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config_eth0=( "192.168.1.2 netmask 255.255.255.0" |
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"192.168.1.3 netmask 255.255.255.255" |
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"192.168.1.6 netmask 255.255.255.255" |
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) |
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Only the first has a regular mask (and therefore is source and target for |
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broadcasts) - the rest has /32 mask and is only valid for unicast |
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communication. |
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AFAIK this is true for both multiple cards on single network and multiple |
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aliases on single card. |
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-- |
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Pawel Kraszewski |
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www.kraszewscy.net |
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-- |
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gentoo-user@g.o mailing list |
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