Fiail-Over Internet Connection with 2 ISPs

RouterOS General
1

Dear All,

Let suppose i have 2 ISPs(2 AS) for fail-over connection. i have one web server in DMZ. that web server using public IP from ISP1. i am worry if ISP1 is down. that public IP putting for my web server can not route through ISP2. :laughing: However, LAN users will can use internet because i use VRRP function on Mikrotik for fail-over internet connection.

any advise?

Regards,
Drawing1.jpg

2

Two possible options that I can think of, off the top of my head:

First,
You can write a script that will check for gateway activity on MT1 / ISP1, and have it update the public address to ChangeIP or something of the kind.
Should the gateway fail, MT2 / ISP2 can be forced to update THEIR public address to the same ChangeIP account.

Second,
And Iā€™m not too familiar with the workings, but try registering an FQDN with two DNS entries - one for each of your gateways. Round-robin DNS resolving should crudely load-balance incoming connections across your two WAN links, but Iā€™m not entirely sure what happens in the event of failure by one of the links. More research on that is required on my part.

Iā€™m stating these, assuming that both your Mikrotik routers are able to route incoming Port 80 traffic to your Web Server.

But hey, there are two possibilities for you. :slight_smile:

-Krige

3

thanks for your reply