When using the Virtual Edition (VE) of Symantec Web Gateway (SWG) in Proxy only mode, users report that their Browse times have greatly increased for all web pages.
In the Console or /var/log/messages files for the Symantec Web Gateway you see the following messages:
localhost kernel: eth6: received packet with own address as source address
localhost kernel: eth6: received packet with own address as source address
To resolve this issue please perform the following steps
1. Open the vSphere client and in the left-hand pane, right-click on the Symantec Web Gateway (SWG) instance and select "Edit settings"
2. Scroll down to select "Network adapter 2 ", then in the right pane uncheck both "Connect" and "Connect at power on"
3. Do the same thing for "Network adapter 4"
4. Save these settings by clicking "OK"