Digi Connect IT 4 User Manual

Routing IP routing
Digi Connect IT® 4 User Guide
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6. Type exit to exit the Admin CLI.
Depending on your device configuration, you may be presented with an Access selection
menu. Type quit to disconnect from the device.
Policy-based routing
Normally, a routing device determines how to route a network packet based on its destination
address. However, you can use policy-based routing to forward the packet based on other criteria,
such as the source of the packet. For example, you can configure the Connect IT 4 device so that high-
priority traffic is routed through the cellular connection, while all other traffic is routed through an
Ethernet (WAN) connection.
Policy-based routing for the Connect IT 4 device uses the following criteria to determine how to route
traffic:
n Firewall zone (for example, internal/outbound traffic, external/inbound traffic, or IPSec tunnel
traffic).
n Network interface (for example, the cellular connection, the WAN, or the LAN).
n IPv4 address.
n IPv6 address.
n MAC address.
n Domain.
n Protocol type (TCP, UDP, ICMP, or all).
The order of the policies is important. Routing policies are processed sequentially; as a result, if a
packet matches an earlier policy, it will be routed using that policy’s rules. It will not be processed by
any subsequent rules.
Configure a routing policy
Required configuration items
n The packet matching parameters. It can any combination of the following:
l Source interface.
l Source address. This can be a firewall zone, an interface, a single IPv4/IPv6 address or
network, or a MACaddress.
l Destination address. This can be a firewall zone, an interface, a single IPv4/IPv6 address or
network, or a domain.
l Protocol. This can be any, tcp, udp or icmp.
l Source port. This is only used if the protocol is set to tcp or udp.
l Destination port. This is only used if protocol is set to tcp or udp.
n The network interface used to reach the destination.
Additional configuration items
n A label for the routing policy.
n Whether packets that match this policy should be dropped when the gateway interface is
disconnected, rather than forwarded through other interfaces.
To configure a routing policy:

Digi Connect IT 4 Specifications

General

Brand	Digi
Model	Connect IT 4
Category	Network Router
Language	English