On 4/5/07, Peter Warasin <peter@xxxxxxxxx> wrote: > hi list > > I have a strange problem here. Maybe it is normal behavior and i search > within the wrong direction. Probably someone here can give me a hint. > > I have a device (rhel4 kernel 2.6.9) with 3 interfaces. 2 interfaces > (eth0, eth2) are bridged together (br0) and the bridge device has an ip > address assigned (192.168.11.15). > Another interface (eth1) has assigned 10.7.0.10. > > > So far so good. Everything is working well if traffic passes from > 192.168.11.0/24 out to 10.7.0.0/24 if both networks are on different > switches. > > The thing begins to become strange if both eth0 and eth1 are connected > on the same switch (eth2 is not connected). So i have both subnets on > the same switch (for testing purposes). > If i then would like to access 192.168.11.15, packets reach the device > through the interface eth1 instead of eth0/br0, which in fact is wrong. > The arp table on the client shows this also. 192.168.11.15 is assigned > to the mac adress of the interface eth1. > > Needless to say that this happens only from time to time. If i cleanup > the arp table sometimes it went alright. > > What's wrong with my installation? > > Thank you in advance! > > peter > > > -- > :: e n d i a n > :: open source - open minds > > :: peter warasin > :: http://www.endian.com :: peter@xxxxxxxxxx > _______________________________________________ > Bridge mailing list > Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx > https://lists.linux-foundation.org/mailman/listinfo/bridge > Check out the ip sysctl/proc arp_ignore net.ipv4.conf.tun0.arp_ignore = 0 net.ipv4.conf.eth0.arp_ignore = 0 net.ipv4.conf.lo.arp_ignore = 0 net.ipv4.conf.default.arp_ignore = 0 net.ipv4.conf.all.arp_ignore = 0 or /proc/sys/net/ipv4/conf/tun0/arp_ignore /proc/sys/net/ipv4/conf/eth0/arp_ignore /proc/sys/net/ipv4/conf/lo/arp_ignore /proc/sys/net/ipv4/conf/default/arp_ignore /proc/sys/net/ipv4/conf/all/arp_ignore arp_ignore - INTEGER Define different modes for sending replies in response to received ARP requests that resolve local target IP addresses: 0 - (default): reply for any local target IP address, configured on any interface 1 - reply only if the target IP address is local address configured on the incoming interface 2 - reply only if the target IP address is local address configured on the incoming interface and both with the sender's IP address are part from same subnet on this interface 3 - do not reply for local addresses configured with scope host, only resolutions for global and link addresses are replied 4-7 - reserved 8 - do not reply for all local addresses The max value from conf/{all,interface}/arp_ignore is used when ARP request is received on the {interface} _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
