Use the Routing IP Interface Configuration page to configure the IP routing settings for each interface.
To access this page, click in the navigation menu.
Interface Configuration Fields
| Field | Description |
|---|---|
| Interface | The menu contains all interfaces that can be configured for routing. To configure routing settings for an interface, select it from the menu and then configure the rest of the settings on the page. |
| Status | Whether the interface is currently 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). |
| Routing Mode | The administrative mode of IP routing on the interface. |
| Admin Mode | The administrative mode of the interface. If an interface is administratively disabled, it cannot forward traffic. |
| 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. |
| Link Speed Data Rate | The physical link data rate of the interface. |
| IP Address Configuration Method | The method to use for configuring an IP address on the interface, which can be one of the following:
|
| IP Address | The IP address of the interface. This field can be configured only when the selected IP Address Configuration Method is Manual. If the method is DHCP, the interface attempts to lease an IP address from a DHCP server on the network, and the IP address appears in this field (read-only) after it is acquired. If this field is blank, the IP Address Configuration Method might be None, or the method might be DHCP and the interface is unable to lease an address. |
| Subnet Mask | The IP subnet mask for the interface (also known as the network mask or netmask). This field can be configured only when the selected IP Address Configuration Method is Manual. |
| 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. |
| 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. |
| 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 | Determines how the interface handles network-directed broadcast packets. A network-directed broadcast is a broadcast directed to a specific subnet. If this option is selected, network directed broadcasts are forwarded. If this option is clear, network directed broadcasts are dropped. |
| Proxy ARP | When this option is selected, proxy ARP is enabled, and 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. |
| Local Proxy ARP | When this option is selected, local proxy ARP is enabled, and 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 | When this option is selected, 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 this option is clear, the interface will not send ICMP Destination Unreachable messages to inform the host about the error in reaching the intended destination. |
| ICMP Redirects | When this option is selected, 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. |
| Secondary IP Address | To add a secondary IP address on the interface, click the + (plus) symbol in the header row and enter the address in the appropriate field in the Secondary IP Address Configuration window. You can add one or more secondary IP addresses to an interface only if the interface already has a primary IP address. To remove a configured secondary IP address, click the – (minus) symbol associated with the entry to remove. To remove all configured secondary IP addresses, click the – (minus) symbol in the header row. |
| Secondary Subnet Mask | The subnet mask associated with the secondary IP address. You can configure this field in the Secondary IP Address Configuration window. |
Print
this page
Email this topic
Feedback
View PDF
Download EPUB