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Getting the IP range of the Active Update servers for firewall configuration

    • Updated:
    • 17 Oct 2016
    • Product/Version:
    • OfficeScan 10.6
    • OfficeScan 11.0
    • OfficeScan XG.All
    • Platform:
    • Others N/A
Summary

Learn to generate the IP range of the Active Update servers. The IP addresses can be used in firewall policies to allow OfficeScan servers to download pattern file and scan engine updates through network firewalls.

Details
Public

Akamai provides localized cache servers that are geographically located close to you. Since Akamai's server IP addresses changes depending on the country you are located and even under different network conditions, it is best to use the DNS name "trendmicro.georedirector.akadns.net" or "activeupdate.trendmicro.com.edgekey.net" as the basis for your firewall rule.

For example, you prefer an IP address and you are using OfficeScan 11.0, you have to perform the following:

  1. Ping "osce11-p.activeupdate.trendmicro.com".
    You should then be redirected to "a151.g.akamai.net", our third-party content provider.
  2. Change the last octet of the IP address you got to ".255".
    This should give you the address block for your servers. This works best if they are connecting using a single ISP.
 
The resolved IP addresses can change depending on network traffic and whether the servers fail. Akamai compensates for this by modifying their DNS to point to a different server set. If that is the case, the procedure above should be repeated again and add the new server IPs to the list.
Premium
Internal
Rating:
Category:
Troubleshoot
Solution Id:
1036768
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