HP VPN Firewall Appliances Network Management Configuration Guide

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In a "third party next hop" network where the two IPv6 EBGP peers reside in a common broadcast subnet,
the router does not change the next hop for routes sent to the IPv6 EBGP peer or peer group by default,
unless the peer next-hop-local command is configured.
To perform this configuration:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view.
bgp as-number N/A
3. Enter IPv6 address family view
or IPv6 BGP-VPN instance
view.
ipv6-family [ vpn-instance
vpn-instance-name ]
N/A
4. Configure preference values
for IPv6 BGP external,
internal, local routes.
preference { external-preference
internal-preference
local-preference | route-policy
route-policy-name }
Optional.
The default preference values of
external, internal, and local routes are
255, 255, and 130, respectively.
5. Configure the default local
preference.
default local-preference value
Optional.
The value defaults to 100.
6. Advertise routes to an IPv6
peer or peer group with the
local router as the next hop.
peer { ipv6-group-name |
ipv6-address } next-hop-local
By default, IPv6 BGP specifies the
local router as the next hop for routes
sent to an IPv6 EBGP peer or peer
group, but does not change the next
hop for routes sent to an IPv6 IBGP
peer or peer group.
The IPv6 BGP-VPN instance view does
not support this command.
Configuring the MED attribute
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view.
bgp as-number N/A
3. Enter IPv6 address family view
or IPv6 BGP-VPN instance
view.
ipv6-family [ vpn-instance
vpn-instance-name ]
N/A
4. Configure a default MED
value.
default med med-value
Optional.
Defaults to 0.
5. Enable the comparison of
MED for routes from different
EBGP peers.
compare-different-as-med
Optional.
Not enabled by default.
The IPv6 BGP-VPN instance view
does not support this command.
6. Enable the comparison of
MED for routes from each AS.
bestroute compare-med
Optional.
Disabled by default.
The IPv6 BGP-VPN instance view
does not support this command.