Partial vs Full tables

Brian Johnson brian.johnson at
Thu Jun 11 18:34:15 UTC 2020

Wow. Full distorted vision of reality mode here…

uRPF doesn’t “break” anything. I stand by that. It’s not a religious position. It’s an operational experience. One that I have multitudes of real world examples of it working to SOLVE issues.

You seem to be willfully ignorant about how real networks use tools that you dislike to solve problems. This is way more of a problem with you disliking uRPF than me telling you that I like it for some applications.

Now I remember why I usually never post on this list now. I will just dismiss your opinions going forward instead of trying to point out that you aren’t the only measure of a network.

Thanks Bill.

> On Jun 11, 2020, at 1:11 PM, William Herrin <bill at> wrote:
> On Thu, Jun 11, 2020 at 9:35 AM Brian Johnson <brian.johnson at> wrote:
>> You are a dismissive little twit aren’t you. :/
> Someone stood up and said, "Nope, nothing I did could possibly have
> broken anything." I'm pretty sure that someone was you but feel free
> to call me on it if I'm mistaken.
> Look, at the risk of doing further offense, it's like I said: it's one
> thing to educate yourself about a topic and then make a judgement call
> about what's acceptable. It's quite another to remain willfully
> ignorant in service of your preferred view. I just got through
> describing specific scenarios where loose urpf fails when you
> responded that no, it doesn't break anything. If you'd said, "no, that
> breakage is a small price worth paying," I'd have debated the merits
> with you or simply let it stand as a contrary opinion. Refusing to
> acknowledge the breakage is worth only dismissal.
> Regards,
> Bill
> --
> William Herrin
> bill at

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