How to route multiple gatway for internet traffice
How do you want to use the second ISP? Do you want to establish a primary/backup arrangement or do you want to use them actively and have some kind of load sharing?
If you configure a floating static default route it will give you primary/backup functionality. If you configure a second static default route it will give you both of them working at the same time.
You will need to configure address translation for traffic going out through the second ISP. And when you have two outbound interfaces and address translation on each then the way that you configure address translation needs to change. With one outbound your address translation command has an access list to identify the traffic. When you have a second outbound interface then you need to do address translation using route maps. The route map will have two match commands with one match for the access list and the second match command matching the outbound interface.
If you have a second server that you want to establish static translation that can be done using the second ISP. There is not a good way to have a single server that is translated using both ISP.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...