Users Guide

• Isolated port — an isolated port is a port that, in Layer 2, can only communicate with promiscuous ports
that are in the same PVLAN.
• Promiscuous port — a promiscuous port is a port that is allowed to communicate with any other port
type.
• Trunk port — a trunk port carries VLAN traffic across switches:
• A trunk port in a PVLAN is always tagged.
• A trunk port in Tagged mode carries primary or secondary VLAN traffic. The tag on the packet
helps identify the VLAN to which the packet belongs.
• A trunk port can also belong to a regular VLAN (non-private VLAN).
Topics:
• ip local-proxy-arp
• private-vlan mode
• private-vlan mapping secondary-vlan
• switchport mode private-vlan
ip local-proxy-arp
Enable/disable Layer 3 communication between secondary VLANs in a private VLAN.
S4048
Syntax
[no] ip local-proxy-arp
To disable Layer 3 communication between secondary VLANs in a private VLAN, use
the no ip local-proxy-arp command in INTERFACE VLAN mode for the primary
VLAN.
To disable Layer 3 communication in a particular secondary VLAN, use the no ip
local-proxy-arp command in INTERFACE VLAN mode for the selected secondary
VLAN.
NOTE: Even after you disable ip-local-proxy-arp (use no ip-local-
proxy-arp) in a secondary VLAN, Layer 3 communication may happen between
some secondary VLAN hosts, until the address resolution protocol (ARP) timeout
happens on those secondary VLAN hosts.
Defaults Layer 3 communication is disabled between secondary VLANs in a private VLAN.
Command Modes INTERFACE VLAN
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Private VLAN (PVLAN) 1554