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10.31.2007 at 08:52PM PDT, ID: 22931556
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Duplicate Packets on Dual-homed Linux PC

Tags: duplicate, linux, dual, packets, homed
I have a Redhat Enterprise Linux 4 WS PC with 3 NIC's.  Each NIC has a unique class B network hooked to it, and all are on their own VLANS on a single, standalone Cisco 3650 switch, in a lab.  I am sending UDP broadcast packets over the network from some developmental software that we use.  

My problem is that there are multiple dual or triple homed PC's on the system that may share the same subnets, and 2 computers in particular where the packets are being send out of computer A on both NIC's, even though they should only be leaving eth0.  Is there some routing setting, or NIC configuration to prevent the duplicate broadcast packets from bleeding over to a different NIC?  I have intel e1000 NIC's, too.

Help?!?!
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Question Stats
Zone: Networking
Question Asked By: JET_IT_Guy
Solution Provided By: Nopius
Participating Experts: 2
Solution Grade: A
Views: 0
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11.01.2007 at 05:05AM PDT, ID: 20192092

Rank: Master

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11.01.2007 at 06:54PM PDT, ID: 20197891

Rank: Guru

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