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. 126.96.36.199 /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 188.8.131.52 /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 184.108.40.206 mask 255.255.255.252 network 220.127.116.11 mask 255.255.255.252 network 18.104.22.168 mask 255.255.255.255 network 22.214.171.124 mask 255.255.255.252 neighbor 126.96.36.199 remote-as 65002 neighbor 188.8.131.52 remote-as 65001 neighbor 184.108.40.206 update-source Loopback0
I think I can remove the #network 220.127.116.11 command since I aggregated the route on another BGP device
When it comes to summarizing all my 18.104.22.168 /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.