Date: Fri, 24 Feb 2017 23:47:32 -0800 From: Doug Hardie <bc979@lafn.org> To: Adam Vande More <amvandemore@gmail.com> Cc: "freebsd-questions@freebsd.org Questions" <freebsd-questions@freebsd.org> Subject: Re: netstat interface output Message-ID: <26BD675C-79AE-410A-B26E-28528D13B52E@lafn.org> In-Reply-To: <CA%2BtpaK1j2pxzrrZ0y=9_geC94Yfd7_Oq4urnkQT7ud=D6G2Kjw@mail.gmail.com> References: <C4194CE3-F38A-48E6-8318-D3676C14F991@lafn.org> <CA%2BtpaK1j2pxzrrZ0y=9_geC94Yfd7_Oq4urnkQT7ud=D6G2Kjw@mail.gmail.com>
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> On 24 February 2017, at 20:43, Adam Vande More <amvandemore@gmail.com> = wrote: >=20 > On Wed, Feb 22, 2017 at 5:38 PM, Doug Hardie <bc979@lafn.org> wrote: > I am starting to develop a nagios check for errors on interfaces. = However, there are some issues with the entries in netstat that I don't = understand. Each interface has multiple entries: one for each address = and one for the link. It would seem to me that the link counts would be = the sum of the other address entries, but it is not. Often it is way = off. At first I thought it was possibly caused by overflows of the = counters since most systems have been running for months. However, = checking one system that was only up for one day, the ip4 count was = considerably larger than the link count. This is shown in one of the = examples below. >=20 > This is layer 2 vs layer 3 info. >=20 > To set static IP info see: >=20 > https://www.freebsd.org/doc/handbook/config-network-setup.html Thats how the static IPs are configured. They work fine after a reboot. = However, after awhile those addresses disappear. Therein lies the = problem. =E2=80=94 Doug
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