Hello, you can use ebtables (http://users.pandora.be/bart.de.schuymer/ebtables/). On Mon, 2 Sep 2002, Geoff Steer wrote: > I have a problem involing arp table entries that I'm hoping someone can > help with. > > I'm working on a mail system that utilises multiple Linux servers in a > redundant configuration. > The configuration has pairs of Linux servers running as MTAs. Each pair > of real servers hides behind a virtual server name. The virtual server > name and load balancing of real servers is handled by an Alteon AD3 switch. > Each of the Linux servers has two ethernet interfaces with the second > interface also connected to a (second) Alteon. The two Alteons are > configured in an active-standby arrangement using VRRP. > The IP addresses of each linux servers' ethernet interfaces are on the > same subnet (172.16.180.0/128), > > The configuration of the Alteon causes each of the Alteon IP > addresses to appear on each interface of the Linux box, with the same > MAC address i.e. > > alteon1 (172.16.180.2) at 00:00:E8:D7:4F:5D [ether] on eth0 > alteon2 (172.16.180.3) at 00:50:BA:CB:DD:D8 [ether] on eth0 > alteon1 (172.16.180.2) at 00:00:E8:D7:4F:5D [ether] on eth1 > alteon2 (172.16.180.3) at 00:50:BA:CB:DD:D8 [ether] on eth1 > > What I'm looking to do is to not have the second entry for any host > appear in the arp table if it's already there for another interface. > i.e. if alteon1 has an arp entry pointing to eth0, don't add one for > eth1 - which I guess means, don't issue arp requests/responses on the > other interface for an Alteon if we have an arp table entry. > The solution doesn't need to be tailored to the Alteon IP > addresses, just a general rule of not issuing arp requests/responses > on a second interface if we already have a similiar entry pointing to > the first interface. > > Regards > Geoff Steer -- `)_|_(' PSIkappa I k psi _at_ atlantis.sk _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
