User Guide
92.....Avocent® Universal Management Gateway Appliance Installer/User Guide
3. Click the Left Arrow to move the interface back to the Available field, if desired.
4. Repeat as desired for each interface under either the Outside or Inside headings.
5. Click Apply.
To create IPaliases for 1-to-1 NAT:
1. From the appliance's Linux shell, type cd, then type /usr/bin/fwnatdirectory.
2. The fwnat-alias.sh script can be used to create IPaliases on the eth0/eth1/bond0/<bridge
group> interfaces.
NOTE: Created IP aliases will appear on the Interfaces tab within the firewall.
Syntax for the script is:./fwnat-alias [-h] -c <add|del|mod> -i <eth0 | eth1> -n <ifname> -a
<cidr formated IP> [-b <broadcast address>] [-m <cidr formated IP>[*<broadcast
address>]]
For example:
./fwnat-alias.sh -c add -i eth0 -n drac5 -a 192.168.200.195/24 -b 192.168.200.255
Command Description
-h Displays the command syntax
-c Command to add, delete or modify an IPalias interface
-i Alias for eth0 | eth1 | bond0 | bridge group
-n Name of the alias up to 8 characters
-a IP address in CIDR format
-b Broadcast address
-m Modified IP address in CIDR format with an '*' preceding the modified broadcast address
Script Syntax Commands Descriptions
Defined networks
Anetwork definition denotes a range of IPs through the CIDR formatted IPaddress. The subnet
address/IDis the appropriate value for the IPaddress field combined with the subnet mask in prefix
notation.
Defining a network and associating it with an interface is an efficient way of using a single NATor
firewall rule to apply to any and all host IPs residing within an IPrange.
NOTE: Creation of network definitions is useful for grouping hosts within a range of IPs but is not required
for all types of NATand firewall rules.
For example, a host which has an IPaddress of 192.168.0.2 and a subnet mask of 255.255.255.0
would belong to the 192.168.0.0 network. Representing a subnet mask in prefix notation is an
efficient way of designating which part of the network address is the subnet IDand which part