cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements
Popup Hotspot Using ISR 1000 with WiFi/LTE for Teleworkers and Micro Branchesr
445
Views
0
Helpful
4
Replies
Highlighted

Failover/Highavailability of webserver with multiple ISP

We need our webserver to be available when the Primary ISP failover to Secondary ISP. Below is an example of our current setup.

 

 

 

We have interface tracking setup and when the ISP 1 goes down the secondary default route kicks in and we have internet at the office. However our website will be disconnected from the outside world.

We are using Cisco 2911 Integrated Service Router

How can we make our server available when the secondary ISP is active?

Everyone's tags (1)
1 ACCEPTED SOLUTION

Accepted Solutions
Highlighted

The only way is to have your

The only way is to have your own public IP and advertised it through both the ISP's via BGP,

or else check dynamic DNS i think its called dyndns or similar.

View solution in original post

4 REPLIES 4
Highlighted

At the moment how does

At the moment how does outside world reach your web server?,whats the public IP they use ?

Highlighted

172.16.0.1, assuming it is

172.16.0.1, assuming it is the public IP in the above scenario which is provided by ISP1. So when ISP1 is down and ISP2 kicks in, the web server won't be reachable from outside. ISP2 has also given us a separate stack of  public IP, 172.17.0.0/24 in this scenario.

Highlighted

The only way is to have your

The only way is to have your own public IP and advertised it through both the ISP's via BGP,

or else check dynamic DNS i think its called dyndns or similar.

View solution in original post

Highlighted

Just like I thought, we will

Just like I thought, we will go ahead with BGP Multihoming...:) Thank you...:)