Administrator Guide

Configure the System to be a DHCP Server.................................................................................................................266
Configuring the Server for Automatic Address Allocation.....................................................................................266
Specifying a Default Gateway....................................................................................................................................267
Configure a Method of Hostname Resolution......................................................................................................... 267
Using DNS for Address Resolution............................................................................................................................267
Using NetBIOS WINS for Address Resolution.........................................................................................................268
Creating Manual Binding Entries............................................................................................................................... 268
Debugging the DHCP Server.....................................................................................................................................268
Using DHCP Clear Commands.................................................................................................................................. 268
Configure the System to be a DHCP Client.................................................................................................................. 269
Configuring the DHCP Client System.......................................................................................................................269
DHCP Client on a Management Interface................................................................................................................270
DHCP Client Operation with Other Features........................................................................................................... 271
DHCP Relay When DHCP Server and Client are in Different VRFs............................................................................271
Configuring Route Leaking between VRFs on DHCP Relay Agent.......................................................................272
Non-default VRF configuration for DHCPv6 helper address...................................................................................... 273
Configuring DHCP relay source interface...................................................................................................................... 273
Global DHCP relay source IPv4 or IPv6 configuration ...........................................................................................273
Interface level DHCP relay source IPv4 or IPv6 configuration .............................................................................274
Configure the System for User Port Stacking (Option 230).......................................................................................275
Configure Secure DHCP...................................................................................................................................................275
Option 82 (DHCPv4 relay options)........................................................................................................................... 275
DHCPv6 relay agent options......................................................................................................................................276
DHCP Snooping...........................................................................................................................................................276
Drop DHCP Packets on Snooped VLANs Only....................................................................................................... 280
Dynamic ARP Inspection............................................................................................................................................ 280
Configuring Dynamic ARP Inspection........................................................................................................................281
Source Address Validation............................................................................................................................................... 282
Enabling IP Source Address Validation..................................................................................................................... 282
DHCP MAC Source Address Validation....................................................................................................................283
Enabling IP+MAC Source Address Validation..........................................................................................................283
Viewing the Number of SAV Dropped Packets.......................................................................................................283
Clearing the Number of SAV Dropped Packets...................................................................................................... 284
13 Equal Cost Multi-Path (ECMP).................................................................................................285
ECMP for Flow-Based Affinity........................................................................................................................................285
Configuring the Hash Algorithm................................................................................................................................285
Enabling Deterministic ECMP Next Hop..................................................................................................................285
Configuring the Hash Algorithm Seed...................................................................................................................... 285
Link Bundle Monitoring.....................................................................................................................................................286
Managing ECMP Group Paths.................................................................................................................................. 286
Creating an ECMP Group Bundle..............................................................................................................................287
Modifying the ECMP Group Threshold.................................................................................................................... 287
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table........................................ 288
Support for ECMP in host table................................................................................................................................288
Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes ........................................................................... 288
14 FIP Snooping.......................................................................................................................... 289
Fibre Channel over Ethernet............................................................................................................................................289
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