Você precisará adicionar as entradas de rota apropriadas. Há uma visão geral decente do processo aqui O processo será semelhante para o NIC sem fio e com fio .
- How do you setup a host with dual NICs, and connect to dual ethernet networks?
When setting up a dual NIC cards (multi-homed host), only one default gateway should be assigned to one of the two network adapters. If a NIC is used to connect to the Internet, the default gateway should be assigned to that NIC card. For a NIC card that is connected to the LAN, a static routing entry should be entered into the computer's routing table if the host needs to obtain network resources outside of its subnet.
For example, if the NIC interface is assigned to an IP address of 192.168.1.0 network and a router is is used to interconnect it to 10.10.10.0 network, a static routing table must be entered to let the host know how to route packets destined to 10.10.10.0 network. A Linux and Windows machines have a slightly different syntax, but general idea is the same.
On the Windows Box,
C:> ROUTE ADD 10.10.10.0 MASK 255.255.255.0 192.168.1.1