A while ago I wrote a blog post about remote ND attacks, which included the idea of having /120 prefixes on server LANs. As it turns out, it was a bad idea, and as nosx pointed out in his comment: “there is quite a long list of caveats in all vendor camps regarding hardware in the last 6-8 years that has some potentially painful hardware issues regarding prefix length. Classic issues include ACL construction and TCAM specificity.”
One would hope that the newly-release data center switches fare better. Fat chance!
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