Knowledgebase: Firewall / Security
ATO Firewall ports required for ELS application
Posted by on 20 January 2012 03:52 PM

IMPORTANT ! It is suggested that your LAN Administrator implements thisguide. Any variation to this information guide may result in unexpected errors.

In order to get ELS working through your firewall and /or the Network Address Translation (NAT) device, you will need to ensure that the following traffic be allowed through the following ports to the corresponding (IP) addresses:
______________________________________________
TCP transport mode:
Port: 10000 (Outbound)

UDP transport mode (with NAT device):
Port: 500 & 4500 (Outbound)

UDP transport mode (with no NAT device):
Port: 500 & 10000 (Outbound)
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VPN concentrators (TCP or UDP mode):
Mel/Ade (IP): 203.202.40.129
Syd/Bri (IP): 61.88.100.161
______________________________________________
Telnet (client and Server):
Port: 7586

Telnet to the CEG servers:
Melbourne (IP): 203.202.43.1
Adelaide (IP): 203.202.43.2
Brisbane (IP): 203.202.43.3
Sydney (IP): 203.202.43.4
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If you connect via the ISyd/Bri concentrator you will not be able to access the Melbourne (203.202.43.1) or Adelaide (203.202.43.2) telnet
sites and similarly, if you connect to the IMel/Ade concentrator you will not have access to Brisbane (203.202.43.3) or Sydney
(203.202.43.4).

A wide range of information, help and advice is also available online at
the following Internet sites:

Australian Taxation Office: http://www.ato.gov.au ATO Online Services:
http://ato.gov.au/onlineservices/ Free On-Site Support Visits :
http://ato.gov.au/assistancevisit Free Local Seminars and Workshops:
http://ato.gov.au/seminars

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