Hi guys, I have this configuration:
LAN -- LINUX BRIDGE -- LINUX BRIDGE -- TS
The linux's bridges are for wifi purposes (2 centos machines) and is working fine.
The problem I have is that the TS are 3 windows TS in load balancing configuration. There is 1 IP for general purposes and every TS has its own IP. For example, the configuration is:
192.168.0.1/24 TS1 192.168.0.2/24 TS2 192.168.0.3/24 TS3 192.168.0.10/24 (TS server IP for load balancing)
The problem I encountered is that every PC into the LAN has access from the LAN to every TS (tested with ping), but them have no access to the IP for load balancing.
I observed that all TSn IP's has their ARP entry in the ARP table, but the IP for load balancing not.
How can I solve this problem at the bridge level? I think that there is something that the bridges are filtering and perhaps is because the TS load balancing software uses various "virtual macs" for the load balancing IP.
Perhaps I must change any /proc/sys/net/ipv4/conf/<dev>/ file to bypass this filter, I'm thinking in "arp_ignore", put a "1" into it, but is a production environment and I don't want to loss the access to the devices.
Any help?
ArcosCom Linux User ha scritto:
I observed that all TSn IP's has their ARP entry in the ARP table, but the IP for load balancing not.
How can I solve this problem at the bridge level? I think that there is something that the bridges are filtering and perhaps is because the TS load balancing software uses various "virtual macs" for the load balancing IP.
I had a similar issue with a Cisco router; the solution was to add an entry on the arp table for the IP for load balancing and the "virtual" ethernet address of the cluster. (You can find them on the properties of the cluster)
I guess you could use /etc/ether to make the mapping persistent.
Regards
Lorenzo Quatrini
2 questions: a) Must I put the same IP with 3 "virtual macs" under the same interface? b) Must the ARP entry be changed in the bridges? In the computers?
Regards
El Mie, 28 de Mayo de 2008, 18:12, Lorenzo Quatrini escribió:
ArcosCom Linux User ha scritto:
I observed that all TSn IP's has their ARP entry in the ARP table, but the IP for load balancing not.
How can I solve this problem at the bridge level? I think that there is something that the bridges are filtering and perhaps is because the TS load balancing software uses various "virtual macs" for the load balancing IP.
I had a similar issue with a Cisco router; the solution was to add an entry on the arp table for the IP for load balancing and the "virtual" ethernet address of the cluster. (You can find them on the properties of the cluster)
I guess you could use /etc/ether to make the mapping persistent.
Regards
Lorenzo Quatrini _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
ArcosCom Linux User ha scritto:
2 questions: a) Must I put the same IP with 3 "virtual macs" under the same interface? b) Must the ARP entry be changed in the bridges? In the computers?
Well, I don't remember for sure if I did something on the Cluster side (maybe I choose "Multicast" on cluster properties) but I only have one (virtual) mac address for the (virtual) ip address.
The static ARP entry is only on my router (which is routing and not bridging); maybe if you use bridging you have to distribute the static mapping on all the host
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ArcosCom Linux User -
Lorenzo Quatrini