Change Details

Quagga (OSPF) is used to dynamically advertise routes so that other machines know which route to use to reach internal networks. We have two routers: - router-002 (BACKUP) - router-003 (ACTIVE) When a failover occurs: - CARP moves the VIP to the new ACTIVE - OVH script updates the MAC address However, remote machines (like Windriver, Ysul, CloudHugger) still send traffic through the old GRE tunnel, because they don't know that the active router has changed. `The issue is not about reaching the VIP itself, but about selecting the correct path to reach the internal network (172.27.27.0/27).` To solve this, Quagga provides OSPF, which is used to dynamically advertise the network through both routers. This ensures that traffic is always routed through the GRE tunnel connected to the ACTIVE router. ----------------------- References : https://fr.wikipedia.org/wiki/Quagga_(logiciel) https://enotepaper.wordpress.com/2014/01/08/installing-quagaa-on-freebsd/

Quagga (OSPF) is used to dynamically advertise routes so that other machines know which route to use to reach internal networks. We have two routers: - router-002 (BACKUP) - router-003 (ACTIVE) When a failover occurs: - CARP moves the VIP to the new ACTIVE - OVH script updates the MAC address T2276 However, remote machines (like Windriver, Ysul, CloudHugger) still send traffic through the old GRE tunnel, because they don't know that the active router has changed. `The issue is not about reaching the VIP itself, but about selecting the correct path to reach the internal network (172.27.27.0/27).` To solve this, Quagga provides OSPF, which is used to dynamically advertise the network through both routers. This ensures that traffic is always routed through the GRE tunnel connected to the ACTIVE router. ----------------------- References : https://fr.wikipedia.org/wiki/Quagga_(logiciel) https://enotepaper.wordpress.com/2014/01/08/installing-quagaa-on-freebsd/

Quagga (OSPF) is used to dynamically advertise routes so that other machines know which route to use to reach internal networks. We have two routers: - router-002 (BACKUP) - router-003 (ACTIVE) When a failover occurs: - CARP moves the VIP to the new ACTIVE - OVH script updates the MAC address T2276 However, remote machines (like Windriver, Ysul, CloudHugger) still send traffic through the old GRE tunnel, because they don't know that the active router has changed. `The issue is not about reaching the VIP itself, but about selecting the correct path to reach the internal network (172.27.27.0/27).` To solve this, Quagga provides OSPF, which is used to dynamically advertise the network through both routers. This ensures that traffic is always routed through the GRE tunnel connected to the ACTIVE router. ----------------------- References : https://fr.wikipedia.org/wiki/Quagga_(logiciel) https://enotepaper.wordpress.com/2014/01/08/installing-quagaa-on-freebsd/