AS55492 ASPA Check - DFN BD Dhaka Fiber Net Limited

DFN-BD Dhaka Fiber Net Limited🇧🇩 - ASPA check for AS55492: the upstream transit providers AS55492 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS55492 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

AS55492 has not published its own ASPA object, but 2 ASNs list it as an authorized upstream provider.

Listed as Upstream By
2 ASNs
Upstream Providers
-
Downstream Customers
2

Peering Topology

AS55492 peering topology: 0 upstream providers and 2 downstream customersNo upstreams. Downstreams: AS17644, AS154383.AS55492 - DFN-BD Dhaka Fiber Net LimitedAS55492DFN-BD Dhaka Fiber Ne…AS17644ZORN-AS-AP ZORN TECHN…AS17644 - ZORN-AS-AP ZORN TECHNOLOGIESAS154383ZWS-AS-AP ZORNTECH WE…AS154383 - ZWS-AS-AP ZORNTECH WEB SOLUTIONSUPSTREAMSDOWNSTREAMS

Downstream Customers(2)

These ASNs list AS55492 as an authorized upstream provider.

ASNName
AS17644🇧🇩ZORN-AS-AP ZORN TECHNOLOGIES
AS154383🇧🇩ZWS-AS-AP ZORNTECH WEB SOLUTIONS
About ASPA - what it is and why AS55492 should publish one

ASPA (Autonomous System Provider Authorization) is a cryptographically signed RPKI object specified in the IETF draft-ietf-sidrops-aspa-profile that lets an AS declare which upstream networks are its authorized transit providers. Together with route origin validation (ROV), ASPA enables BGP route leak detection: routers can reject AS-paths in which a network appears as a provider without being authorized. Route leaks are a frequent cause of large routing incidents, and ROV alone cannot detect them because the origin of a leaked route is correct.

AS55492 (DFN-BD Dhaka Fiber Net Limited) has not published an ASPA object. Hops through it are therefore "unknown" to ASPA validation - not invalid, but not protected either. An ASPA object lists every transit provider of the network (or AS0 if it has none) and is created in the RIR's hosted RPKI where ASPA is supported, or in a delegated RPKI setup. For most networks the record is a short list of their upstream ASNs.

Create an ASPA object: RIPE Portal · ARIN RPKI · APNIC MyAPNIC · ipctl.io RPKI & ROA tools

Related Tools and Guides

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