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Configuration Guide - VPN

S7700 and S9700 V200R013C00

This document describes the configurations of VPN, including GRE, IPSec, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, VPLS, L2VPN Access to L3VPN.
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Disabling an ASBR from Filtering VPNv6 Routes by VPN Targets

Disabling an ASBR from Filtering VPNv6 Routes by VPN Targets

Context

By default, the PE performs VPN target filtering on the received IPv6 VPN routes. The routes passing the filter are added to the routing table, and the others are discarded. If the PE is not configured with VPN instance, or the VPN instance is not configured with the VPN target, the PE discards all the received VPN IPv6 routes.

In Inter-AS VPN Option B, you do not need to configure VPN instances on the ASBRs. An ASBR must save all VPNv6 routes and advertises the VPNv6 routes to the remote ASBR. In this case, the ASBR should receive all the VPNv6 routing information without the VPN target filtering.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run bgp { as-number-plain | as-number-dot }

    The BGP view is displayed.

  3. Run ipv6-family vpnv6

    The BGP-VPNv6 address family is displayed.

  4. Run undo policy vpn-target

    The VPN IPv6 routes are not filtered by the VPN target.

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Updated: 2019-04-08

Document ID: EDOC1100065751

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