Specifying The Local And Remote As - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

IP Routing—Configuring RIP, OSPF, BGP, and PBR
Configuring BGP
N o t e
Be aware that you must enter the address for the interface that the remote
router is using as its update source. For example, the neighbor may be using
a loopback interface as the update source for several connections. Your ISP
should provide you with the correct address.
The local router must be able to reach the IP address configured as the
neighbor ID. View the routing table and verify that it includes a route to this
address.

Specifying the Local and Remote AS

You must also specify the ISP's AS. You do so from the BGP neighbor config-
uration mode context:
Syntax: remote-as <AS>
For example:
ProCurve(config-bgp-neighbor)# remote-as 3
You can also set the local AS number:
Syntax: local-as <AS>
The router includes the local AS number in BGP routes that it receives from
your router and advertises to another peer. Often, the ISP prohibits its routers
from advertising routes with your AS in its path to external neighbors.
The local AS should be the same number, assigned to you by the ISP, that you
configured when you enabled BGP. For example:
ProCurve(config-bgp-neighbor)# local-as 1
Always enter the AS number assigned to you by your AS; do not enter a private
AS number. If you want to prepend a private AS number to a route, you must
do so in a route map. See "Prepending Private AS Numbers for Load Balancing"
on page 13-96.
Your router should now be able to connect to the neighbor and exchange
routes with it. You should read the following sections only if you want to learn
how to configure more complicated policies.
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