Subject: Urgent notice for customers running IPS TOS 3.8.3 or earlier
Affected Devices: 660N, 1400N, 2500N, 5100N, 6100N, 2600NX, 5200NX, 6200NX, 7100NX, 7500NX
Affected Versions: TOS 3.8.3 and earlier
Date of Announcement: April 17, 2018
Summary: Distributing a profile with *all filters enabled* to a device running TOS 3.8.3 or earlier, will result in a memory allocation issue which will cause the device to enter into Layer 2 Fallback. Recovery from this condition will require the device to be reset to factory defaults, then reconfigured. This issue was addressed in 3.8.4 and later, and it is recommend that customers upgrade to a newer version of TOS at the earliest opportunity.
To avoid the memory allocation error when running TOS 3.8.3 and earlier, do not enable all filters via manual overrides or Category Settings. As the DV continues to grow the risk of hitting the memory allocation issue, with less than all filters enabled, increases.
If you have concerns or further questions regarding this issue, contact the Trend Micro TippingPoint Technical Assistance Center (TAC).
Trend Micro™ TippingPoint
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