currently running R81.10 JHF 66 on VSX platform. One of the instances is an internet uplink. So one internal interface, one public interface and acting as a gateway to INETA.
Challenge : upgrade the internet uplink to INETB with as less downtime as possible
Need to new uplink to be on another interface as fibre requirement. Catch : a block of public ip's is routed to the public ip of the interface leading to INETA. I need some time to migrate these to public ip's of INETB.
Is it possible to have two uplinks active? And i don't mean isp redundancy. One to INETA and one to INETB.
Default gateway will be to INETB. This will cover internet access for internal users.
Access to the block of public ip's for INETA also needs to be active. This is basically only for those specific devices. This boils down to : there are two seperated nat translation tables needed for this to work. Each tied to their respective INET interface. Or perhaps one global nat translation table which also keeps record of which public interface trafic came in.
I'm not sure if this is possible.
A picture always says more ...