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The following table explains the four types of proxy servers that TMWS provides.
Proxy Server Type
Proxy Address (FQDN)
Description
Global
proxy.iws-hybrid.trendmicro.com
Default proxy server
When configured, the system will automatically forward user requests to a lowest-latency regional proxy server.
Global (only for uniquely assigned port)
proxy-md.iws-hybrid.trendmicro.com
Default proxy server for the dedicated port assigned by TMWS in the case that you add a domain name under Directroy Services but it is already in use by another organization
When configured, the system will automatically forward user requests to a lowest-latency regional proxy server.
Regional
proxyst-<region>.iws-hybrid.trendmicro.com
<region> is a variable for regions, which includes:
  • uw2 for US West (Oregon)
  • ue for US East (N. Virginia)
  • se for Brazil (San Paulo)
  • ew2 for UK (London)
  • ew for Ireland (Ireland)
  • ec for Germany (Frankfurt)
  • as2 for Australia (Sydney)
  • as1 for India (Mumbai)
  • as for Singapore
  • an for Japan (Tokyo)
  • af for Africa (Cape Town)
Regional proxy server that serves a specific region only
When configured, the system will forward user requests to the specified regional proxy server.
Regional (only for uniquely assigned port)
proxyst-<region>-md.iws-hybrid.trendmicro.com
<region> is a variable for all the regions (as listed in the above row) except af.
Regional proxy server for the dedicated port assigned by TMWS in the case that you add a domain name under Directory Services but it is already in use by another organization
When configured, the system will forward user requests to the specified regional proxy server.
The following table explains the PAC servers that TMWS provides.
PAC Server Type
PAC Address (FQDN)
Description
Regional
pacst-<region>.iws-hybrid.trendmicro.com
<region> is a variable for regions, which includes:
  • uw2 for US West (Oregon)
  • as2 for Australia (Sydney)
  • ew2 for UK (London)
  • se for Brazil (San Paulo)
  • ec for Germany (Frankfurt)
  • as1 for India (Mumbai)
  • an for Japan (Tokyo)
  • as for Singapore
Note
Note
Only the US West, Germany, Australia, and Japan regions have real PAC servers, while the PAC address of the other regions will be routed to the US West region.
Static regional proxy server that serves a specific region only
When manually configured in the PAC file, the system will forward user requests to the specified static regional PAC server.
Note
Note
The address "pac-<region>.iws-hybrid.trendmicro.com" accesses dynamic IP addresses.
If you want to access static IP addresses, use the address "pacst-<region>.iws-hybrid.trendmicro.com" instead.
On the cloud, TMWS receives HTTP requests from user clients (inbound) and forwards them to the destination websites (outbound) using different IP addresses. The IP addresses for inbound transmission are static, while those for outbound transmission are dynamically allocated.
The following table explains the IP addresses that TMWS uses for proxy (inbound), for Direct Authentication, and for static PAC file servers.
Purpose
IP Addresses
Descriptions
For proxy (inbound)
52.29.191.208 - 52.29.191.223
54.171.190.128 - 54.171.190.143
52.56.127.240 - 52.56.127.247
52.35.63.176 - 52.35.63.191
52.90.127.240 - 52.90.127.255
52.68.255.224 - 52.68.255.255
52.65.255.240 - 52.65.255.255
54.233.255.240 - 54.233.255.255
13.126.23.128 - 13.126.23.135
18.141.66.240 - 18.141.66.247
13.244.176.40 - 13.244.176.47
The TMWS cloud proxy uses the IP address within these IP ranges to receive HTTP requests sent from a user's browser in your organization.
For Direct Authentication
54.93.44.160
54.93.40.172
50.112.157.207
54.201.83.195
54.76.190.176
54.72.187.231
52.56.76.254
52.56.96.164
52.4.56.161
52.0.26.116
54.199.160.153
54.250.181.139
54.252.137.220
54.79.89.127
54.232.197.232
54.207.109.120
35.154.252.243
35.154.70.163
18.136.191.209
52.220.233.54
13.244.188.220
13.244.164.245
If your organization uses the Direct authentication method, TMWS both on the cloud and on the premises uses one of these IP addresses to connect to your Active Directory servers for user authentication.
For static PAC file servers
52.29.191.208 - 52.29.191.223
54.171.190.128 - 54.171.190.143
52.56.127.240 - 52.56.127.247
52.35.63.176 - 52.35.63.191
52.90.127.240 - 52.90.127.255
52.68.255.224 - 52.68.255.255
52.65.255.240 - 52.65.255.255
54.233.255.240 - 54.233.255.255
13.126.23.128 - 13.126.23.135
18.141.66.240 - 18.141.66.247
13.244.176.40 - 13.244.176.47
The TMWS cloud proxy uses the IP addresses within these IP ranges as the IP address of the static PAC file server of the pacst-<region>.iws-hybrid.trendmicro.com type described in the table above.