Hi Experts ,
Here is the scenerio
- The nodes are Web Servers at one of our client site
- Multiple NIC Cards . One of them has a static Private IP Address in 192.168.168.X with /24 subnet mask for communication to a SAN. Two of them are teamed and the Team is assigned with static Public IP Addresses . The preferred IP Address is a public IP address with subnet mask 255.255.255.128 (/25) and there are additional IP address given on the teamed NIC ,most of them with 255.255.255.255 (/32) . What is the significance of giving such a subnet mask ?
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This is common web server configuration. Normally webservers will serve many web sites and one way of having multiple sites on a server involves having the web server (IIS, apache, etc) processes bind to unique IPs. The addresses with the 32bit mask are just IP aliases for inbound traffic and you will likely find your web server software configured to use the IPs for the various web sites. If you use Windows 2008 without a specific hotfix beware they may be used as the source address for outbound traffic too.