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Posix Systems

Membership category: Large
Connected to JINX: Yes
Autonomous system number: 6083
IP address at JINX:
Prefixes accepted: /24 minimum
Contact person: Mark Elkins (mje @ and see below

Statement of interconnection policy:

Posix's peering policy is available on-line at:

Posix systems peering policy
1st JULY 2002 - Version 1.1

This document describes under what guidelines Posix Systems (Pty) Ltd ('POSIX') will peer with other organisations.


POSIX follows the ISPA default policy of exchanging traffic with all other participants on a no charge basis. Peering at an ISPA location is NOT a requirement - POSIX will peer with any organisation that is acting as an ISP (Internet Service Provider).


POSIX does not have a formal peering contract - however is usually willing to sign peering contract of other organisations who have such requirements.

Routing policy

POSIX prefers to use BGP V4 (Border Gateway Protocol) for the exchange of routing updates so peers should have their own ASN (Autonomous System Number) and IP Address space.

The usual permissible minimum on routes is for '/24' routes i.e. routed networks should be a minimum of a Class 'C' network.

About ASN 6083

POSIX uses ASN 6083. 'Home' networks to this ASN are:


Transit peering for Posix clientel

The following ASNs transit via POSIX

  • 17220 – GDS (tba)
  • 6968 – UniForum SA (206.223.136/24)
  • 25695 – Lesotho Office (
  • 26625 – Namibnet (


All peering queries should be addressed to:

  • Mark Elkins (mje @
  • Tel - 012 807 0590
  • Cell - 082 601 0496

Weekly JINX traffic for Posix Systems

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