Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

LTM: Configuring IP Forwarding

A basic change in internal routing architecture and functionality between BIG-IP 4.x and LTM 9.x has caused some confusion for customers whose v4.x deployment depended on IP forwarding. Here is an ex...
Published Feb 12, 2008
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Doug_24189's avatar
Doug_24189
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Mar 12, 2008
I generally only recommend that when creating a 0.0.0.0/0 IP forwarding Virtual Server that you only enable it on internal VLANs. Network Virtual Servers (i.e. 192.168.10.0/24) are better to enable on external VLANs since they will only forward traffic destined for that particular network.