Deployment Guide
Configure the System to be a DHCP Server............................................................................................................ 281
Configuring the Server for Automatic Address Allocation...............................................................................281
Specifying a Default Gateway................................................................................................................................282
Configure a Method of Hostname Resolution....................................................................................................283
Using DNS for Address Resolution....................................................................................................................... 283
Using NetBIOS WINS for Address Resolution....................................................................................................283
Creating Manual Binding Entries........................................................................................................................... 283
Debugging the DHCP Server..................................................................................................................................284
Using DHCP Clear Commands...............................................................................................................................284
Configure the System to be a DHCP Client............................................................................................................. 284
Configuring the DHCP Client System.................................................................................................................. 285
DHCP Client on a Management Interface...........................................................................................................286
DHCP Client Operation with Other Features.....................................................................................................286
DHCP Relay When DHCP Server and Client are in Different VRFs....................................................................287
Configuring Route Leaking between VRFs on DHCP Relay Agent............................................................... 287
Non-default VRF configuration for DHCPv6 helper address............................................................................... 288
Configuring DHCP relay source interface.................................................................................................................289
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................289
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................289
Configure the System for User Port Stacking (Option 230)............................................................................... 290
Configure Secure DHCP................................................................................................................................................ 291
Option 82 (DHCPv4 relay options)........................................................................................................................291
DHCPv6 relay agent options.................................................................................................................................. 292
DHCP Snooping.........................................................................................................................................................292
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 296
Dynamic ARP Inspection......................................................................................................................................... 296
Configuring Dynamic ARP Inspection...................................................................................................................297
Source Address Validation............................................................................................................................................298
Enabling IP Source Address Validation................................................................................................................ 298
DHCP MAC Source Address Validation...............................................................................................................299
Enabling IP+MAC Source Address Validation.................................................................................................... 299
Viewing the Number of SAV Dropped Packets................................................................................................. 300
Clearing the Number of SAV Dropped Packets.................................................................................................300
Chapter 13: Equal Cost Multi-Path (ECMP)................................................................................301
ECMP for Flow-Based Affinity..................................................................................................................................... 301
Configuring the Hash Algorithm.............................................................................................................................301
Enabling Deterministic ECMP Next Hop.............................................................................................................. 301
Configuring the Hash Algorithm Seed..................................................................................................................302
Link Bundle Monitoring..................................................................................................................................................302
Managing ECMP Group Paths...............................................................................................................................303
Creating an ECMP Group Bundle..........................................................................................................................303
Modifying the ECMP Group Threshold................................................................................................................303
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table..............................304
Support for ECMP in host table............................................................................................................................304
Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes ....................................................................304
Chapter 14: FIP Snooping.......................................................................................................... 305
Fibre Channel over Ethernet........................................................................................................................................305
Contents
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