...in the since na magamit at the same time? No i don't think so, but kung mo-ingon ta for the sake of fault tolerant, YES kaaU. Arun once na ma-down ang isa ka ISP mo-failover dayun siya sa isa, but not at the same time but one at a time in one PC, however, kung naa ka 4 PCs pwede sad nimo sila bahinon kung asa nimo sila paagion. Duha ka paagi.
1)
static routing. when you manually set an IP address at the router to force the workstation to route to a specific gateway (like for instance, Globe or PLDT gateway or modem specifically, ang duha paagi-on sa Globe ang other duha sa PLDT sad) until the request reaches its destination.
2)
dynamic routing. routers default gateway is being used when a DHCP server leases IP addresses to all DHCP client workstations.
...by doing this you will need a gateway or a modem each ISP after a device that manages dual WAN. (see fig.1)
Fig.1: One of the Dual WAN Devices available in the market
...applicable thru this diagram below,
