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Date:      Mon, 25 Jan 2016 13:30:01 -0800
From:      Colin Percival <cperciva@freebsd.org>
To:        Jeremiah Lott <jlott@averesystems.com>, freebsd-cloud@freebsd.org
Subject:   Re: EC2 Advanced Networking in HEAD
Message-ID:  <56A693D9.3010304@freebsd.org>
In-Reply-To: <CANG7ib83hRcYrUHFgS8uZqwhbqOi6t9hTooYYLUR-fC7%2B6CZ9Q@mail.gmail.com>
References:  <CANG7ib83hRcYrUHFgS8uZqwhbqOi6t9hTooYYLUR-fC7%2B6CZ9Q@mail.gmail.com>

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On 01/25/16 13:16, Jeremiah Lott wrote:
> I'm having very inconsistent results using the latest 11.0-CURRENT snapshot
> AMI "FreeBSD 11.0-CURRENT-amd64-2016-01-22 (ami-0b95716b)". A pretty high
> percentage of the time (I'd say at least 50%), networking does not work
> when I create an instance.

Just to rule out the obvious: Sometimes I accidentally launch instances into
VPC subnets which default to not assigning public IP addresses.

> I am using various r3 instance types in the
> us-west-2b AZ. Sometimes when I create an instance, everything works fine
> and I get a DHCP lease for my ixv0 device. Other times, ixv0 is probed, but
> I never get a DHCP offer (which was the broken behavior from before).
> Changing the instance type or stopping/stopping the instance can switch an
> instance's NIC from "working" to "non-working" and vice-versa. However, I'm
> not convinced it has to do with instance type per-se (changing instance
> type changes a lot of things about the underlying hardware). Anyone else
> successfully using this latest AMI? Since advanced networking is on by
> default now, I'd expect others who are using the AMI to see problems as
> well.

It worked in my tests, but they were far from exhaustive.  (This is why I
turned it on in HEAD -- so that everybody else can find the bugs!)

-- 
Colin Percival
Security Officer Emeritus, FreeBSD | The power to serve
Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid



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