Date: Tue, 26 Oct 2004 11:14:21 -0600 From: "Adam Seniuk" <adams@techweavers.net> To: "'Aaron Nichols'" <adnichols@gmail.com> Cc: questions@freebsd.org Subject: RE: 2 Network Cards & 2 IP's? Message-ID: <20041026171408.939EE43D1D@mx1.FreeBSD.org> In-Reply-To: <ac05538404102610104db8ac9f@mail.gmail.com>
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This is more for redundancy, I have 2 on board nic's so if I can use both of them to do basic dns round robin load balancing and manual failover its more useful then one network card doing nothing :D -----Original Message----- From: Aaron Nichols [mailto:adnichols@gmail.com] Sent: Tuesday, October 26, 2004 11:10 AM To: Adam Seniuk Cc: questions@freebsd.org Subject: Re: 2 Network Cards & 2 IP's? On Tue, 26 Oct 2004 11:00:45 -0600, Adam Seniuk <adams@techweavers.net> wrote: > > xl0 > > arp: 192.168.1.100 is on fxp0 but got reply from 00:02:b3:9f:74:89 on > > xl0 > > arp: 192.168.1.1 is on fxp0 but got reply from 00:07:e9:10:43:78 on > > I get these messages in my logs (quite a few) > > So I am not sure what is wrong. I noticed in another thread that freebsd > does not allow ips from the same netmask so how does the blundering windows > do it? Those messages are probably technically correct. Since both NIC's are on the same wire, they are both going to see the same ARP request/responses. I assume this error is just indicating that there is already an ARP entry for 192.168.1.100 which indicates that it can be found via fxp0 and it just saw an ARP response indicating that it is also available via xl0 - so which should it use? It's a bit confusing to a machine which has to select the correct NIC to send traffic out. What is the goal of all this? Typically for multipe IP's on the same subnet you would just use an alias - I assume that's not suitable in this case but am not sure why. Aaron
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