Category: Firewalls

Daryll Swer posted a very informative response to my NAT Traversal Mess blog post, focusing on:

Punching holes through that firewall is equivalent to establishing NAT translations.

It would be a shame to let that response wither as small print at the bottom of a blog post; here it is:

Chinar Trivedi wanted to know what happens when you insert a firewall in the DHCP data path (original question.

TL&DR: Nothing much, but that does not mean you should.

Now for the details:

While I liked reading the Where to Stick the Firewall blog post by Peter Welcher, it bothered me a bit that he used microsegmentation to mean security groups.

I know that microsegmentation became approximately as well-defined as cloud or SDN¹, but let’s aim our shiny lance ² at the nearest windmill and gallop away…