Protected traffic is tunneled through the Symantec Web Security Service (WSS). You want to know which IP addresses traffic from WSS comes from.
The egress IP address seen by web servers is no longer the egress IP address of your own network.
Here are the egress IP addresses for the following locations as of August 21, 2019.
NOTE: If egress IP addresses are in use for identification or your vendor requires an IP address for security, remember that any customer that uses the Web Security Service (WSS) can use the same egress IP address as your traffic. If IP addresses are used as a security measure, please consider bypassing the WSS service when visiting those secure sites.
Link to egress IP addresses for APAC Link to egress IP addresses for EMEA