The first IP address is always used for general communication. If necessary, change the order of the IP addresses via the arrow symbols. In this example the IP address range 81.81.81.1/29 is used with a total of 8 IP addresses. Of these 5 IP addresses are usable. - 81.81.81.0: This is the network address and therefore cannot be used.
- 81.81.81.1: In this example this IP address is used by the Gateway (Provider router) and therefore cannot be used.
- 81.81.81.2 - 81.81.81.6: These IP addresses aren't reserved otherwise and therefore can be used freely in the Unified Firewall.
- 81.81.81.7: This is the Broadcast address and therefore cannot be used.
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