Switch User Manual

SecureStack C3 Configuration Guide 23-1

IPv6 Proxy Routing

ThischapterdescribesthecommandsusedtoenableIPv6proxyroutingandthesuggested

proceduretoconfigureamixedC2andC3stacktouseIPv6proxyrouting.

Overview

IPv6proxyroutingallowsamixedC2/C3stacktosupportsomeIPv6routingfunctionality.When

IPv6proxyroutingisenabled,alltheswitchesinthestackcansupportIPv6unicastroutingand

IPv6tunneling.Youcanconfigureport‐basedandVLAN‐basedIPv6routinginterfacesonanyC2

orC3stack

unit.ThereisnochangeinexistingIPv4routingcapabilities.

Sincethisisafunctionthatexistsonlyinamixedstack,itisimplementedonlyintheC2firmware,

release5.01andlater.ForIPv6proxyroutingtoexistinthestack,aC3unitmustrunasthe

managerofthestack.Tofacilitatethis,thestackmanagerpreferenceofC3unitsshouldbesettoa

highervaluethanC2units.IfaC3unitisaddedtoanallC2stack,youmustmovethemanagerto

aC3unittousethisfeature.

MultipleC3units

canexistinthemixedstack.AlltheC3unitsinthemixedstackwill

independentlyperformhardwareIPv6routing/tunneling.ThemanagerC3unitwilltransparently

dothehardwareIPv6routing/tunnelingforalltheC2units.

WhenIPv6proxyroutingisenabled,theC2beingconfiguredforrouting/tunneling (calledthe

proxyclient)isconfiguredtoredirecttheroutedIPV6/Tunnelingpacketstooneofthestacking

portsoftheC3stackmanager(calledtheproxyserver).TheC2isonlyconfigurediftheproxy

featureisalreadyenabledonthestack.ItshouldbenotedthatonlyIPv6packetswitha

destination

MACoftherouterMACofthesystemareredirectedtotheproxyserver.

Ontheproxyserver,allincomingpacketstothestackingportswithadestinationofoneofthe

stackingportswillbeprocessedthroughL2andL3switchinglogic.Ifthedestinationportisnot

one

ofthestackingports(notanIPv6packet),thentheincomingpacketisforwardedbasedon

headerinformation.

Thisfeatureisdisabledbydefault.

InordertousetheOSPF,PIM‐SM,DVMRP,orVRRPprotocols,youmusthavepurchasedand

installedtheC2advancedroutinglicense.

For information about... Refer to page...

Overview 23-1

Preparing a Mixed Stack for IPv6 Proxy Routing 23-2

Commands 23-3