Bill wrote on Sun, Jun 23, 2002 at 03:56:48PM -0700 : > I was under the impression that running two nic's with the same ip addresses > and differant mac addresses was a no no and would screw your network.
Normally you are correct, however there are two modes that you can utilize to gain additional functionality: 1) bonding: where the driver takes both cards and "bonds" them together. If you have two 100 Mbit cards, bonding yields a theoretical 200 Mbit channel. Whether the PCI bus hardware can actually provide that sort of throughput is an exercise for the reader (ie reading from one or more hard drives for data and then passing it to the kernel modules when then send it out over the two nics) 2) bridging: If you have two seperate physical networks but have a common netmask, you can configure a bridge such that both sides see a common ip address and you can then control access from one side to the other (a firewall of sorts). A common application of this is the wireless access point. If you have a Prism chipset you can use the HostAP software and it will do all of this for you. In the event that you have two or more wired type nics, the kernel also directly supports bridging. For an example of bridging: ifup eth0 ifup eth1 brctl addbr br0 brctl addif br0 eth0 brctl addif br0 eth1 ifconfig br0 192.168.188.1 Now anybody connected to either nic will access the machine as 192.168.188.1. Blue skies... Todd -- Todd Lyons -- MandrakeSoft, Inc. http://www.mandrakesoft.com/ UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things. -- Doug Gwyn Cooker Version mandrake-release-8.3-0.2mdk Kernel 2.4.18-20mdk
msg55615/pgp00000.pgp
Description: PGP signature
