User`s guide

MBR L13 – User’s Guide

Figure 71: NAT/NAPT Rule Sets

This rule translates five new LAN IP addresses to four NAT IP addresses, which would normally mean that only

four of the five LAN computers may have WAN access at the same time. However, note that the NAT address

192.168.71.12 is already in use by the first rule. The L13 will therefore allow these five LAN computers to use

only the three remaining IP addresses: 71.13, 71.14 and 71.15. The status is set to "Active".

Example 3: Translate the range 192.168.1.21-192.168.1.25 to 192.168.71.13-192.168.71.14

1. Define this NAT rule in the same manner depicted above. The following attention message is displayed.

Figure 72: Attention

2. Click OK. The rule is displayed in the NAT screen.

Figure 73: NAT/NAPT Rule Sets

This rule translates five new LAN IP addresses to two NAT IP addresses, both of which are already in use by

the second rule. L13 is therefore unable to resolve this situation and the rule's status is set to "Error". Notice

that had this rule been defined as the second rule, all three rules would be valid. This is because the NAT

address 192.168.71.15 would still be available for rule number 1. This can easily be amended: You can use the

green arrow icons to move a rule entry up or down, changing its priority relative to the other rules. Click this

rule's action icon once. All rules will now be set to "Active".