izBalancing is a bash script allow you to easly and fastly configure a complex Load Balancing Multi Homed Internet Gateway for inbound and outbound traffic
Key Features:
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- Multiple Balanced Default Gateway Configuration
- Load Balanced outgoing connections from LAN to INTERNET connections
- Management of multiple incoming connection from many INTERNET ISP lines to DMZ/LAN Servers
- SystemV compliant script... you can run easly at boot up (like Red Hat, Fedora, SuSE, Mandrake, etc...)
- Automatically discover your local IP addresses... you can change your IP without reconfigure this script, just restart
- Start and Stop Cleanly your MultiHomed Configuration with simple command (izbalancing start|stop|restart)
- Adding new Internet Connections is very easy and fast
- You only must know the TABLE ID to assign to the new line, Ethernet Name of your NIC, and the Router IP Address
Requirements:
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- GNU/Linux Firewall running Kernel >=2.6.10 (with iptables module CONNMARK available)
- Bash Shell >= 2.0
- Standard GNU/Linux coreutils utilities (cat, echo, grep, if, etc...)
- GNU Version of awk and sed utilities
- GNU/Linux Netfilter user space utilities (iptables >= 1.2.11)
- iproute2 utilities
- Two or more Internet connections (also from different ISPs and IP classes)
- An ethernet card for each ISP Router
Tested On:
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- GNU/Linux Fedora Core 3 with 2 Internet Connections
- GNU/Linux Fedora Core 4 with 2 Internet Connections
Script Usage:
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1) Configure or add the following variables:
TABLEn = Table number of internet connection 'n'
IFn = The Ethernet Interface name of internet connection 'n'
GWn = The Router IP Address of Internet connection 'n'
2) Add a line for each internet connection in the izbalancing function
3) Modify the command "ip route add default equalize nexthop via ..." adding all ISP's Routers IP
4) Comment out the iptables rules
5) Save this file and execute it a boot time (for Red Hat systems you can copy this script in /etc/rc.d/init.d/ directory
and launch 'chkconfig --add izbalancing')
That's all...
Download:
izBalancing Version 20050712
