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65-13
User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 65 Managing Cisco Catalyst Switches and Cisco 7600 Series Routers
Interfaces
Name (Select button) Displays the generated interface name, if the name has been set.
Click Select to open the Interface Auto Name Generator Dialog Box,
page 59-12. From here, you can enter or edit the details that Security
Manager uses to generate an interface name.
Mode The port configuration type for this interface.
Select Routed Port to display the configuration options that are
relevant for routed ports.
Routed Port settings
IP Type The type of IP address used by the port:
• Static IP—Specifies that the interface uses a permanent IP address
and activates related GUI elements.
IP Address (Select button) Enables you to enter an IP address, or you can click Select to open the
Networks/Hosts Selector, where you can select an IP address.
Helper IP Addresses (Select
button)
Enables you to assign a helper IP address to the interface. A helper IP
address converts broadcast DHCP requests to unicast requests that are
directed exclusively to the DHCP server.
Mask Enables you to specify the subnet mask. You can enter a netmask value
or you can select a netmask from the list. If you enter a netmask, you
can express its value in dotted decimal format (for example,
255.255.255.0) or you can enter the number of bits (for example, 24).
Note Do not use 255.255.255.254 or 255.255.255.255 for any
interface that is connected to your network; these netmasks
cause all traffic on an interface to stop.
Common interface settings
Speed The speed of the physical interface:
• 10—Transmits at 10 Mbps.
• 100—Transmits at 100 Mbps.
• 1000—Transmits at 1,000 Mbps.
• 10000—Transmits at 10,000 Mbps.
• Auto—If Speed is set to Auto, both Speed and Duplex are
autonegotiated.
• Non-Negotiate—Disables link negotiation.
Duplex The duplex setting of the interface:
• Auto—Autonegotiates the duplex.
• Half—Sends and receives data, but not at the same time
• Full—Sends and receives data at the same time.
If the speed is set to Auto, the duplex setting must also be set to Auto.
MTU The maximum transmission unit, which refers to the largest packet size
(in bytes) that can be handled by the interface. The range of valid values
depends on the interface type.
Table 65-5 Create and Edit Interface Dialog Boxes—Routed Port Mode (Continued)
Element Description