| author | duongau |
|---|---|
| ms.date | 07/16/2024 |
| ms.service | azure-expressroute |
| ms.topic | include |
| ms.author | duau |
| Private Peering | Microsoft Peering | |
|---|---|---|
| Max. # IPv4 prefixes supported per peering | 4000 by default, 10,000 with ExpressRoute Premium | 200 |
| Max. # IPv6 prefixes supported per peering | 100 | 200 |
| IP address ranges supported | Any valid IP address within your WAN. | Public IP addresses owned by you or your connectivity provider. |
| AS Number requirements | Private and public AS numbers. You must own the public AS number if you choose to use one. | You can set private and public AS numbers for peer ASN. However, you must prove ownership of public IP addresses. Note: If you use customer ASN, you can set public ASN only. |
| IP protocols supported | IPv4, IPv6 | IPv4, IPv6 |
| Routing Interface IP addresses | RFC1918 and public IP addresses | Public IP addresses registered to you in routing registries. |
| MD5 Hash support | Yes | Yes |