HCIP BGP lab report

Experiment requirements:

BGPEnvironment, the whole networkReachable; R3 enables IGP protocol for IGP, and BGP protocol is enabled for the rest

Experimental process:

1. Configure IP address

2ConfigurationIGPEnvironment

[R3]rip 1

[R3-rip-1]version 2

[R3-rip-1]network 23.0.0.0

[R3-rip-1]network 3.0.0.0

[R3-rip-1]network 34.0.0.0

Test:

4.EnableBGPAgreement to build neighbors with each other

Prerequisites for building neighborsIn order to reach each other, you need to configure static routing first

[R3]bgp 2
[R3-bgp]router-id 3.3.3.3
[R3-bgp]peer 2.2.2.2 as-number 2
[R3-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[R3-bgp]peer 2.2.2.2 next-hop-local
[R3-bgp]peer 4.4.4.4 as-number 2
[R3-bgp]peer 4.4.4.4 connect-interface LoopBack 0
[R3-bgp]peer 4.4.4.4 next-hop-local

Route announcement: BGP protocol itself does not calculate and generate routing entries; it is responsible for forwarding routing entries passed from other BGP neighbors;

At the same time, any route in the local routing table can be announced to the BGP protocol.;

When BGP announces the configuration, only the routing entries in the local routing table can be announced, and the network number mask in the announcement configuration must be exactly the same as the record in the routing table.

[R5]bgp 3

[R5-bgp]network 55.55.55.0 24

* means available   > means the entry is excellent - can be added to the table, can be passed (shared with other local neighbors)