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Routing |
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| Small to medium business subscribers have the following requirements: |
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- Multiple public IP addresses: The NAT architecture allows at most one instance of an application to be accessible from the outside. However in a large business there may be several instances required, for example multiple Web Servers.
- Firewall and security protection.
- Ability to configure part of the network by using private IP addresses, while other parts are on the public internet (the so-called DMZ).
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| A Routed SU enables Subscriber Hosts to reap the benefits of being on the public network (as in the bridged SU case), while at the same time enjoying a high level of security (as in the NAT'ed SU case), simultaneously. A typical network configuration has the following properties: |
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- As in the NAT Router mode, the SU incorporates a DHCP server to handout IP addresses (from the global IP address space), to hosts behind the SU. The subscriber may also provision a private network by using a third party NAT router, as shown.
- If the BSU is also in the Router mode, then the operator does not have to manually configure the Route to the SU in the BSU’s Route table. This gets added automatically when the SU registers with the BSU.
- Subscribers can have additional routers in their network. Routes to these networks can be configured into the BSU’s Route Table using the BSU's Web interface.
- The system supports VLSM and CIDR to ease assignment of IP subnets to wireless ports.
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The system supports multiple IP subnets per wireless port.
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