Forum Discussion
Azzeddine_S Is the second connection that provides the private IP setup with a router between your F5 and the ISP or is the connection into the F5 a direct connection from the ISP because typically ISPs do not provide private IP space because of the issue you are referring to. As far as health monitors are concerned I would pick 1 destination to check on ISP 1 and a different destination to check on ISP 2. Once you have those different destinations picked you can configure a static route for each that points them to your gateway for the respective ISP. As an example you would have the following as long as the ISP will NAT your IP for ISP 2 if they really do provide you a private IP.
net route ISP_1_Monitor {
description "ISP 1 destination for health monitor"
gw <ISP_1_gateway_IP>
network 4.2.2.2/32
}
net route ISP_2_Monitor {
description "ISP 2 destination for health monitor"
gw <ISP_2_gateway_IP>
network 4.2.2.2/32
}
Once you have these routes configured you should be able to implement ECMP using the following guide.