Chapter 17: Web Hosting Configuration Guide

The network shown in the previous example can be created with the following load- balance commands:

load-balance create vip-range-name mywwwrange 207.135.89.16-207.135.89.50 virtual-port 80 protocol tcp

load-balance add host-to-vip-range 10.1.1.16-10.1.1.50 vip-range-name mywwwrange port 80

load-balance add host-to-vip-range 10.1.2.16-10.1.2.50 vip-range-name mywwwrange port 80

Session and Netmask Persistence

In the following example, traffic to a company web site (www.ctron.com) is distributed between two separate servers. In addition, client traffic will have two separate ranges of source IP addresses. The same load balancing server will handle requests from clients of the same source IP subnet address.

Source

Address:

20.20.10.1/24

10.1.1.1 Router

10.1.1.2

 

 

 

Source

 

 

 

Address:

www.ctron.com

30.30.10.1/24

Web requests

to www.ctron.com Virtual IP Address: 207.135.89.16

NAT/ multiple proxies

NAT/ multiple proxies

Client IP Address

Domain

Virtual IP

Real Server

TCP Port

Name

IP

 

 

 

 

 

 

 

 

20.20.10.1 - 20.20.10.254

www.ctron.com

207.135.89.16

10.1.1.1

80

 

 

 

 

 

30.30.10.1 - 30.30.10.254

 

 

10.1.1.2

80

 

 

 

 

 

The network shown above can be created with the following load-balance commands:

load-balance create group-name ctron-sec virtual-ip 207.135.89.16 protocol tcp persistence-level ssl virtual-port 443

load-balance add host-to-group 10.1.1.1-10.1.1.2 group-name ctron-sec port 443 load-balance set client-proxy-subnet ctron-sec subnet 24

SmartSwitch Router User Reference Manual

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Cabletron Systems 9032578-05 manual Session and Netmask Persistence