Date: Mon, 10 Jan 2011 11:18:21 +0100 From: Thomas Steen Rasmussen <thomas@gibfest.dk> To: Francisco Reyes <lists@stringsutils.com> Cc: freebsd-net@freebsd.org Subject: Re: Lagg questions Message-ID: <4D2ADCED.8060809@gibfest.dk> In-Reply-To: <cone.1294602157.25706.3413.1000@shelca> References: <cone.1294602157.25706.3413.1000@shelca>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 09-01-2011 20:42, Francisco Reyes wrote: > Found a couple of good lagg tutorials > http://www.cyberciti.biz/faq/freebsd-network-link-aggregation-trunking/ > http://wisekuma.net/linux-bsd/freebsd-lagg/ > > But there are a few things that I can't find so far... > > Does one need a third card to reach the machine where one runs lagg? > Say I have em0 and em1, do I assign actual IPs to the cards before > adding them to lagg or they can't have IPs of their own? > > Other than lacp protocol do the other options work without having to > change anything at the switch? > > My situation is as follows: > Have two connections, 1 T1 and a cable connection. > Need to, temporarily, allow outbound traffic between both. > Hello, I'm afraid you've misunderstood how lagg works. lagg is for bundling _layer 2_ links. This basically means you can use two or more physical cables to the same switch, to get better speed and/or redundancy. Using lagg to bundle two uplinks to two different providers will not work as you intend. You need to look into using pf or something similar to balance layer 3 traffic across two uplinks. I have had this running at home for years with pf, and it works great. Best regards Thomas Steen Rasmussen -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk0q3OwACgkQGjEBQafC9MB+4ACggVWVlUCFt25rJTUwBJewA/BA dswAnjVM0Bo84DBAWJila0+NlivtxOxo =B0j2 -----END PGP SIGNATURE-----
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