Owners Manual

14 Dynamic Host Configuration Protocol (DHCP)........................................ 315
DHCP Packet Format and Options...................................................................................................315
Assign an IP Address using DHCP.....................................................................................................317
Implementation Information............................................................................................................ 318
Configure the System to be a DHCP Server.................................................................................... 319
Configuring the Server for Automatic Address Allocation........................................................ 319
Specifying a Default Gateway..................................................................................................... 321
Configure a Method of Hostname Resolution...........................................................................321
Using DNS for Address Resolution............................................................................................. 321
Using NetBIOS WINS for Address Resolution.............................................................................321
Creating Manual Binding Entries.................................................................................................321
Debugging the DHCP Server......................................................................................................322
Using DHCP Clear Commands...................................................................................................322
Configure the System to be a Relay Agent......................................................................................322
Configure the System to be a DHCP Client.................................................................................... 324
DHCP Client Operation with Other Features.............................................................................325
DHCP Client on a Management Interface................................................................................. 326
Configure the System for User Port Stacking (Option 230)............................................................326
Configure Secure DHCP...................................................................................................................326
Option 82.....................................................................................................................................327
DHCP Snooping.......................................................................................................................... 327
Drop DHCP Packets on Snooped VLANs Only.......................................................................... 331
Dynamic ARP Inspection.............................................................................................................331
Configuring Dynamic ARP Inspection........................................................................................332
Source Address Validation................................................................................................................333
Enabling IP Source Address Validation.......................................................................................334
DHCP MAC Source Address Validation......................................................................................334
Enabling IP+MAC Source Address Validation............................................................................ 334
Viewing the Number of SAV Dropped Packets..........................................................................335
Clearing the Number of SAV Dropped Packets.........................................................................336
15 Equal Cost Multi-Path (ECMP)......................................................................337
ECMP for Flow-Based Affinity.......................................................................................................... 337
Configuring the Hash Algorithm.................................................................................................337
Enabling Deterministic ECMP Next Hop.................................................................................... 337
Configuring the Hash Algorithm Seed....................................................................................... 338
Link Bundle Monitoring.................................................................................................................... 338
Managing ECMP Group Paths.................................................................................................... 339
Creating an ECMP Group Bundle...............................................................................................339
Modifying the ECMP Group Threshold......................................................................................340