: Dual-stack routing, 6in4/4in6 tunneling, and OSPFv3 configurations. 4. How to Deploy the Image in EVE-NG
When you see "patched" associated with this specific filename, it usually refers to a few common modifications made by the community to make the image more usable in home labs:
: Advanced Enterprise Services feature set (includes high-end security and routing features). 156-2.T : Software release version 15.6(2)T.