02-04-2021 09:10 AM
I have a customer wishing to advertise a /24 PI subnet. They have 2 routers currently in an active/passive config with VRRP configured as a virutal gateway. They now wish to use BGP for the 2 routers, the currently go to the same ISP but they don't have an AS number. Is is possible for them to advertise this subnet with one ?
02-04-2021 09:21 AM - edited 02-04-2021 09:22 AM
Why not consider using IGP/iBGP between you and customer and redistribute to BGP, is this works ?
02-04-2021 09:41 AM
Hello,
--> They now wish to use BGP for the 2 routers, the currently go to the same ISP but they don't have an AS number.
Can you explain what you mean by that ? They run BGP but don't know the AS number of the ISP ? They don't have a public AS to configure on their routers ?
Either way, without a BGP AS, they cannot use BGP.
02-04-2021 12:16 PM - edited 02-04-2021 12:17 PM
Hello
If you have a requirement to interconnect towards multiple ISP's then you'll need to obtain to a public ASN, However if you only interconnect to a single ISP then you should be able to use a private ASN.
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