A. for EBGP and IBGP lab you have to make correction to the configuration in a router R1.
You have only access to Router R1.
R1 and RA should be neighbors through EBGP.
in R1 you will find this command:
(config-router)#Neighbor 209.165.277.2 remote-as 64525
The ip address here is wrong , delete this command using :
And replace it with new command with right ip of RA E0/1 interface
by typing this command:
(config-router)#Neighbor 209.165.201.2 remote-as 64525
R1 and R2 and R3 are neighbors through IBGP, and R1 use the peer-group IBGP to form neighborship between R1 and R2, and between R1 and R3, but actually there issue with the IBGP peer-group commands in R1 You will find in R1 these following commands:
(config-router)#neighbor IBGP peer-group
(config-router)#neighbor IBGP update-source loopback 0
You must correct the Remote-AS for the Peer-Group IBGP to 64520 to form the neighborship correctly.
Watch Out! If you delete the config with "no neighbor IBGP remote-as 64550" you also will delete the following lines:
(config-router)#neighbor IBGP peer-group
So don't delete the line regarding the "remote-as".
Just replace it with:
(config-router)#neighbor IBGP remote-as 64520
In the Scenario regarding the Lab, they tell you how the routing-table should look if you have done everything right!
So if you routing-table on R1 looks like the one they posted in the scenario you have done everything right and can go on to the next topic.
You have to use the command "#show ip bgp " to show bgp routing table , don't use "#show ip route" command

B. for EBGP and IBGP lab you have to make correction to the configuration in a router R1.
You have only access to Router R1.
R1 and RA should be neighbors through EBGP.
in R1 you will find this command:
(config-router)#Neighbor 209.165.277.2 remote-as 64525
The ip address here is wrong , delete this command using :
(config-router)#No Neighbor 209.165.277.2 remote-as 64525
And replace it with new command with right ip of RA E0/1 interface
by typing this command:
(config-router)#Neighbor 209.165.201.2 remote-as 64525
R1 and R2 and R3 are neighbors through IBGP, and R1 use the peer-group IBGP to form neighborship between R1 and R2, and between R1 and R3, but actually there issue with the IBGP peer-group commands in R1 You will find in R1 these following commands:
(config-router)#neighbor IBGP peer-group
(config-router)#neighbor IBGP remote-as 64550
(config-router)#neighbor IBGP next-hop-self
(config-router)#neighbor IBGP update-source loopback 0
You must correct the Remote-AS for the Peer-Group IBGP to 64520 to form the neighborship correctly.
Watch Out! If you delete the config with "no neighbor IBGP remote-as 64550" you also will delete the following lines:
(config-router)#neighbor IBGP peer-group
(config-router)#neighbor IBGP next-hop-self
(config-router)#neighbor IBGP update-source loopback 0
So don't delete the line regarding the "remote-as".
Just replace it with:
(config-router)#neighbor IBGP remote-as 64520
In the Scenario regarding the Lab, they tell you how the routing-table should look if you have done everything right!
So if you routing-table on R1 looks like the one they posted in the scenario you have done everything right and can go on to the next topic.
You have to use the command "#show ip bgp " to show bgp routing table , don't use "#show ip route" command