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User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 59 Configuring Router Interfaces
Advanced Interface Settings Page
Additional Settings
Enable Maintenance
Operation Protocol (MOP)
Whether to enable MOP on the interface. You can use MOP for utility
services such as uploading and downloading system software, remote
testing, and problem diagnosis.
Enable Virtual Fragment
Reassembly (VFR)
Whether to enable virtual fragmentation reassembly (VFR) on this
interface. VFR is a feature that enables the Cisco IOS Firewall to create
dynamic ACLs that can protect the network from various fragmentation
attacks. For more information, see Virtual Fragmentation Reassembly
at this URL:
http://www.cisco.com/en/US/docs/ios/sec_data_plane/configuration/g
uide/sec_virt_frag_reassm_ps6441_TSD_Products_Configuration_Gu
ide_Chapter.html
Enable Proxy ARP Whether to enable proxy Address Resolution Protocol (ARP) on the
interface. Proxy ARP, defined in RFC 1027, is the technique in which
one host, usually a router, answers ARP requests intended for another
machine, thereby accepting responsibility for routing packets to the real
destination. Proxy ARP can help machines on a subnet reach remote
subnets without configuring routing or a default gateway.
Enable NBAR Protocol
Discovery
Whether to enable network-based application recognition (NBAR) on
this interface to discover traffic and keep traffic statistics for all
protocols known to NBAR. Protocol discovery provides a method to
discover application protocols traversing an interface so that QoS
policies can be developed and applied to them. For more information,
go to:
http://www.cisco.com/en/US/products/ps6616/products_qanda_item0
9186a00800a3ded.shtml
Table 59-6 Advanced Interface Settings Dialog Box (Continued)
Element Description