Rockwell Automation Ethernet Design Considerations Reference Manual - Manual (Page 27)

Rockwell Automation Publication ENET-RM002C-EN-P - May 2013 27
Ethernet Infrastructure Components Chapter 2
Routers and Gateways Routers and gateways use the network portion of IP addresses to identify the
location of networks. A routing table lets a device know from which port to
transmit a message, so the message can get to a particular network. If that
network is not directly attached to the device, it forwards the message to the next
gateway or router in the path for further routing.
Routing Table
Network Port
10.17.10.0
10.10.10.0
1
2
10.17.10.56
VLAN 17
Subnet 10.17.10.0
Subnet Mask
255.255.255.0
10.10.10.56
Default Gateway
10.10.10.1
10.17.10.1
VLAN 10
Subnet 10.10.10.0
Subnet Mask
255.255.255.0