The BGP Announcement Policy of Hong Kong Internet eXchange (HKIX) is as follows,
a. IP address filtering
- Applicable to general HKIX members.
- Filtering by IP addresses.
- Update via Filter Update Agent for each announcement.
b. AS number filtering
- Applicable to HKIX members who have more than 5 Autonomous Systems (AS) connected and each AS contains at least one /20 or shorter prefix announced to the HKIX.
- Filtering by AS number orignated from the IAP's customer network.
- Update via Filter Update Agent for each announcement.
- Separate application is required, please make your application by e-mail to hkix-noc@cuhk.edu.hk.
HKIX members should check the integrity of the filters and submit only the IP address or AS number that require for update. HKIX may reject the applications if the IP addresses or AS numbers had already included in the filter.
The minimum IP block accepted by the HKIX route server is /24.
Closer Peering Arrangement (CPA) Scheme
- Applicable to HKIX members who are using AS filtering and advertising more than 2500 prefixes for 200+ different ASes to the HKIX.
- All routes will be accepted by the route servers.
- No need to submit filter update.
- Separate application is required, please read here for details.
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