I don't know what I should be using for this or how I should go about it.
In my lab where I am testing out the BGP configs that I've learned I want my ISP topology to have a summary prefix for the Customer to see. I am peering with eBGP to the customer with 3 links. 184.108.40.206 /30 1 - 20 are allocated to this Customer for their WAN links.
ISP has BGP built over an OSPF underlay and is peering with loopbacks
Customer is using EIGRP for IGP
On the Customer's ASBRs the only advertised address is 220.127.116.11 /24
The addresses is aggregated after being redistributed into BGP
These are my configs for BGP on the ISP CE device
router bgp 65001 bgp log-neighbor-changes network 18.104.22.168 mask 255.255.255.252 network 22.214.171.124 mask 255.255.255.252 network 126.96.36.199 mask 255.255.255.255 network 188.8.131.52 mask 255.255.255.252 neighbor 184.108.40.206 remote-as 65002 neighbor 220.127.116.11 remote-as 65001 neighbor 18.104.22.168 update-source Loopback0
I think I can remove the #network 22.214.171.124 command since I aggregated the route on another BGP device
When it comes to summarizing all my 126.96.36.199 /8 prefixes to AS65002 I can't figure out how. I'm pretty new to using route-maps and prefix lists and that's what I was trying to use for this project.