| Step 1 |
enable
|
Enables
privileged EXEC mode.
- Enter your password if
prompted.
|
| Step 2 |
configure
terminal
Device# configure terminal
|
Enters global
configuration mode.
|
| Step 3 |
router
bgp
autonomous-system-number
Device(config)# router bgp 65000
|
Enters router
configuration mode for the specified routing process.
|
| Step 4 |
neighbor
{ip-address
|
ipv6-address
|
peer-group-name}
peer-group
Device(config-router)# neighbor internal peer-group
|
Creates a BGP or multiprotocol BGP peer group.
|
| Step 5 |
neighbor
{ip-address |
ipv6-address
[% ]
peer-group }
Device(config-router)# neighbor FE80::1234:BFF:FE0E:A471% peer-group
|
Configures a
BGP neighbor to member of a peer group.
| Note
|
% keyword is
the IPv6 link-local address identifier. This keyword needs to be added whenever
a link-local IPv6 address is used outside the context of its interface.
|
|
| Step 6 |
neighbor
{ip-address
|
ipv6-address %|
peer-group-name}
remote-as
autonomous-system-number [
alternate-as
autonomous-system-number...]
Device(config-router)# neighbor internal remote-as 100
|
Adds an entry to the BGP or multiprotocol BGP neighbor table.
|
| Step 7 |
neighbor
{ip-address |
ipv6-address
[% ] |
peer-group-name }
remote-as
autonomous-system-number [alternate-as
autonomous-system-number ...]
Device(config-router)# neighbor FE80::1234:BFF:FE0E:A471% remote-as 64600
|
Adds the
link-local IPv6 address of the neighbor in the specified remote autonomous
system to the IPv6 multiprotocol BGP neighbor table of the local device.
| Note
|
% keyword is the IPv6 link-local address
identifier. This keyword needs to be added whenever a link-local IPv6 address
is used outside the context of its interface.
|
|
| Step 8 |
neighbor
{ip-address |
ipv6-address
[% ] |
peer-group-name }
update-source
interface-type
interface-number
Device(config-router)# neighbor FE80::1234:BFF:FE0E:A471% update-source Gigabitethernet 0/0
|
Specifies the
link-local address over which the peering is to occur.
- The optional
% keyword is
the IPv6 link-local address identifier. This keyword needs to be added whenever
a link-local IPv6 address is used outside the context of its interface.
- If there are multiple
connections to the neighbor and you do not specify the neighbor interface by
using the
interface-type and
interface-number arguments in the
neighbor
update-source command, a TCP connection cannot be
established with the neighbor using link-local addresses.
|
| Step 9 |
address-family
ipv6
[vrf
vrf-name ]
[unicast |
multicast |
vpnv6 ]
Device(config-router)# address-family ipv6
|
Specifies the
IPv6 address family, and enters address family configuration mode.
- The
unicast
keyword specifies the IPv6 unicast address family. By default, the device is
placed in configuration mode for the IPv6 unicast address family if the
unicast
keyword is not specified with the
address-family
ipv6 command.
- The
multicast
keyword specifies IPv6 multicast address prefixes.
|
| Step 10 |
neighbor
{ip-address |
peer-group-name |
ipv6-address
% }
activate
Device(config-router-af)# neighbor FE80::1234:BFF:FE0E:A471% activate
|
Enables the
neighbor to exchange prefixes for the IPv6 address family with the local device
using the specified link-local addresses.
- The optional
% keyword is
the IPv6 link-local address identifier. This keyword needs to be added whenever
a link-local IPv6 address is used outside the context of its interface.
|
| Step 11 |
neighbor
{ip-address |
peer-group-name |
ipv6-address
[% ]}
route-map
map-name
{in |
out }
Device(config-router-af)# neighbor FE80::1234:BFF:FE0E:A471% route-map nh6 out
|
Applies a
route map to incoming or outgoing routes.
- The optional
% keyword is
the IPv6 link-local address identifier. This keyword needs to be added whenever
a link-local IPv6 address is used outside the context of its interface.
|
| Step 12 |
exit
Device(config-router-af)# exit
|
Exits address
family configuration mode, and returns the device to router configuration mode.
|
| Step 13 |
exit
Device(config-router)# exit
|
Exits router
configuration mode, and returns the device to global configuration mode.
|
| Step 14 |
route-map
map-tag
[permit |
deny ] [sequence-number ]
Device(config)# route-map nh6 permit 10
|
Defines a
route map and enters route-map configuration mode.
|
| Step 15 |
match
ipv6
address
{prefix-list
prefix-list-name |
access-list-name }
Device(config-route-map)# match ipv6 address prefix-list cisco
|
Distributes
any routes that have a destination IPv6 network number address permitted by a
prefix list, or performs policy routing on packets.
|
| Step 16 |
set
ipv6
next-hop
ipv6-address
[link-local-address ] [peer-address ]
Device(config-route-map)# set ipv6 next-hop 2001:DB8::1
|
Overrides the
next hop advertised to the peer for IPv6 packets that pass a match clause of a
route map for policy routing.
- The
ipv6-address
argument specifies the IPv6 global address of the next hop. It need not be an
adjacent device.
- The
link-local-address argument specifies the IPv6
link-local address of the next hop. It must be an adjacent device. If you do
not specify this optional argument, the link-local address of the interface
specified with the
interface-type argument (in the
neighbor
update-source command in Step 5) is included as
the next-hop in the BGP updates. Therefore, only one route map that sets the
global IPv6 next-hop address in BGP updates is required for multiple BGP peers
that use link-local addresses.
- The route map sets the IPv6
next-hop addresses (global and link-local) in BGP updates. If the route map is
not configured, the next-hop address in the BGP updates defaults to the
unspecified IPv6 address (::), which is rejected by the peer.
|
| Step 17 |
exit
Device(config-router-map)# exit
|
Exits router
map configuration mode, and returns the device to router configuration mode.
|
| Step 18 |
end
Device(config-router)# end
|
Exits router
configuration mode, and enters privileged EXEC mode.
|
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