Chapter 46: Command Line Descriptions
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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configure interface cable-mac * restricted-proxy-arp
Purpose
Restricts proxy ARP to CPEs behind different cable modems.
Default Access Level
15
Command Syntax
configure interface cable-mac <mac> restricted-proxy-arp
configure interface cable-mac <mac> restricted-proxy-arp no
Supplemental
Information
This default behavior should prevent data traffic from CPEs behind the same cable modem from consuming any bandwidth
(upstream or downstream) on the cable. If the option is turned off, the ARP cache of either (or both) CPEs can contain the MAC
address of the CAM for the CPE behind the same cable modem. This causes data traffic between the CPEs to be sent up to the CAM,
routed by the C4 CMTS, and then sent back down to the other CPE behind the cable modem rather than remaining local to the
network behind the cable modem.
If proxy arp is not configured for the CAM, then restricted-proxy-arp has no effect.
Note: Restricted-proxy-arp is not configurable on network-side interfaces (e.g. non-CAM modules)
To disable this feature, use the no option.
Parameters
<mac>
The MAC identifier. Valid numbers are 0-415.