NETGEAR GSM7248R Supplement Manual page 11

Shared access to the internet across multiple routing vlans using a prosafe firewall

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2) Specify the Network number (subnet address), Subnet mask , Default router and DNS

Server

The association between a DHCP pool and a VLAN will be on the basis of the IP address

assigned to the VLAN itself and the subnet mask.

Therefore if it is required to associate a DHCP Pool to a VLAN ensure that the IP address

assigned to the VLAN falls within the network number (or subnet) specified in the pool.

For example VLAN 2 which in this scenario is assigned with IP address 192.168.2.1 and subnet

mask 255.255.255.0 falls within the subnet 192.168.2.0/24.

When creating the DHCP for VLAN2 we have made sure that the network address specified

would be 192.168.2.0 with subnet mask 255.255.255.0. Automatically the switch will associate

such DHCP pool with VLAN2.

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