TRB141 Static Routes

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Static routes specify over which interface and gateway a certain host or network can be reached. This chapter is an overview of the Static Routes page in TRB141 gateways.

The information in this page is updated in accordance with the TRB1410_R_00.01.05 firmware version.123

Static routes

To find information on static route configuration, refer to the figure and table below:


Field Value Description
Interface mobile | lan; default: mobile The zone where the target network resides
Target* ip4; default: The address of the destination network
Netmask* netmask; default: A Mask that is applied to the Target to determine to what actual IP addresses the routing rule applies
Gateway ip; default: none Defines where the router should send all the traffic that applies to the rule
Metric integer; default: 0 The metric value is used as a sorting measure. If a packet about to be routed fits two rules, the one with the lower metric is applied.
MTU integer [64..9000]; default: 1500 Sets the maximum transmission unit (MTU) size. It is the largest size of a protocol data unit (PDU) that can be transmitted in a single network layer transaction.
Route Type unicast | local | broadcast | multicast | unreachable | prohibit | backhole | anycast | -- custom -- ; default: unicast Selects route type. Each type specifies a different behavior for the route:
  • unicast -
  • local - routes of this type are added to the 'local' routing table and used only for locally hosted IPs.
  • broadcast - routes of this type are added to the 'local' routing table and used by link layer devices that support the broadcast address principle.
  • multicast -
  • unreachable -
  • prohibit - used to prohibit traffic to specified host or network. When a destination is prohibited, the kernel sends a 'Network is unreachable' response the source address.
  • blackhole - packets that match this type of route are discarded without any response.
  • anycast -
  • -- custom -- -

*Additional notes on Target & Netmask:

You can define a rule that applies to a single IP like this:

  • Target: some IP
  • Netmask:

Furthermore, you can define a rules that apply to a range of IPs. Refer to the table below for examples.

Target Netmask Description Applies to IPs in the - range. Applies to IPs in the - range. Applies to IPs in the - range. Applies to IPs in the - range. Only applies to