27 lines
802 B
Python
27 lines
802 B
Python
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import pybgpstream
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from collections import defaultdict
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def fetch_asn_ip_mappings():
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asn_ip_mappings = defaultdict(list)
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stream = pybgpstream.BGPStream(
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project="ris-live",
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filter="collector rrc00",
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)
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for rec in stream:
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for elem in rec:
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if elem.type == "A":
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origin_asn = elem.fields["as-path"].split()[-1]
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prefix = elem.fields["prefix"]
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if prefix not in asn_ip_mappings[origin_asn]:
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asn_ip_mappings[origin_asn].append(prefix)
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print(f'{origin_asn} - {prefix}')
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return asn_ip_mappings
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if __name__ == "__main__":
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mappings = fetch_asn_ip_mappings()
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for asn, prefixes in mappings.items():
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print(f"ASN: {asn}, Prefixes: {', '.join(prefixes)}")
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