BGP and BGP4+ Introduction

To configure BGP4+ path filtering, use the following commands starting in Global

Configuration mode:

awplus(config)#

ip as-pathaccess-list (BGP and

This command defines a BGP-related access list.

BGP4+)

 

 

 

awplus(config)#

This command enters Router Configuration mode

router bgp <asn>

 

 

awplus(config-router)#

This command enters Address Family Configuration mode

address-family ipv6 [unicast]

 

 

awplus(config-router-af)#

This command establishes a BGP4+ filter for an IPv6 path in the

neighbor <neighborid>

filter-list <listname> {inout}

Address Family Configuration mode.

 

 

How to disable next hop processing for BGP or

BGP4+ updates

You can configure the software to disable next hop processing for BGP and BGP4+ updates to a neighbor.

For BGP, to disable next hop processing and provide a specific address to be used instead of the next hop address, use the command below in Router Configuration mode:

awplus(config-router)#

neighbor <neighborid> This command disables next hop processing on BGP updates to next-hop-selfan IPv4 neighbor in Router Configuration mode.

For BGP4+, to disable next hop processing and provide a specific address to be used instead of the next hop address, use the command below in Address Family Configuration mode:

awplus(config-router-af)#

neighbor <neighborid> This command disables next hop processing on BGP4+ updates next-hop-selfto an IPv6 neighbor in Address Family Configuration mode.

Configuring this command causes the current router to advertise its peering address as the next hop for the specified neighbor. Therefore, other BGP neighbors will forward to it packets for that address.

 

Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches

 

1.14

AlliedWare PlusTM Operating System - Software Version 5.4.3-2.6

C613-50032-01 REV D

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Allied Telesis VERSION 5.4.3-2.6 manual How to disable next hop processing for BGP or BGP4+ updates