The Routing IP Interface Summary shows summary information about the routing configuration for all interfaces. To view additional routing configuration information for an interface, select the interface with the settings to view and click Details.
To access this page, click in the navigation menu.
Interface Summary Fields
| Field | Description |
|---|---|
| Interface | The interface associated with the rest of the data in the row. When viewing details about the routing settings for an interface, this field identifies the interface being viewed. |
| Status | Whether the interface is capable of routing IP packets (Up) or cannot route packets (Down). For the status to be Up, the routing mode and administrative mode for the interface must be enabled. Additionally, the interface must have an IP address and be physically up (active link). |
| IP Address | The IP address of the interface. |
| Subnet Mask | The IP subnet mask for the interface (also known as the network mask or netmask). It defines the portion of the interface's IP address that is used to identify the attached network. |
| Admin Mode | The administrative mode of the interface, which is either Enabled or Disabled. |
| State | The state of the interface, which is either Active or Inactive. An interface is considered active if the link is up, and the interface is in a forwarding state. |
| MAC Address | The burned-in physical address of the interface. The format is six two-digit hexadecimal numbers separated by colons, for example 00:06:29:32:81:40. |
| Proxy ARP | Whether proxy ARP is enabled or disabled on the interface. When proxy ARP is enabled, the interface can respond to an ARP request for a host other than itself. An interface can act as an ARP proxy if it is aware of the destination and can route packets to the intended host, which is on a different subnet than the host that sent the ARP request. |
| IP MTU | The largest IP packet size the interface can transmit, in bytes. The IP Maximum Transmission Unit (MTU) is the maximum frame size minus the length of the Layer 2 header. |
After you click Details, the Details window opens and displays detailed routing information for the selected interface. The following information describes the fields in this window that are not displayed on the summary page.
Interface Summary Details Fields
| Field | Description |
|---|---|
| Routing Mode | Whether routing is administratively enabled or disabled on the interface. |
| Link Speed Data Rate | The physical link data rate of the interface. |
| IP Address Configuration Method | The source of the IP address, which is one of the following:
|
| Bandwidth | The configured bandwidth on this interface. This setting communicates the speed of the interface to higher-level protocols. |
| Encapsulation Type | The link layer encapsulation type for packets transmitted from the interface, which can be either Ethernet or SNAP. |
| Forward Net Directed Broadcasts | Indicates how the interface handles network-directed broadcast packets. A network-directed broadcast is a broadcast directed to a specific subnet. The possible values are as follows:
|
| Local Proxy ARP | Whether local proxy ARP is enabled or disabled on the interface. When local proxy ARP is enabled, the interface can respond to an ARP request for a host other than itself. Unlike proxy ARP, local proxy ARP allows the interface to respond to ARP requests for a host that is on the same subnet as the host that sent the ARP request. This feature is useful when a host is not permitted to reply to an ARP request from another host in the same subnet, for example when using the protected ports feature. |
| Destination Unreachables | Whether the interface is allowed to send ICMP (Internet Control Message Protocol) Destination Unreachable message to a host if the intended destination cannot be reached for some reason. If the status of this field is Disabled, this interface will not send ICMP Destination Unreachable messages to inform the host about the error in reaching the intended destination. |
| ICMP Redirects | Whether the interface is allowed to send ICMP Redirect messages. The device sends an ICMP Redirect message on an interface only if ICMP Redirects are enabled both globally and on the interface. An ICMP Redirect message notifies a host when a better route to a particular destination is available on the network segment. |
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