Date: Mon, 12 Mar 2018 11:04:28 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: Grzegorz Junka <list1@gjunka.com> Cc: freebsd-net@freebsd.org Subject: Re: Incorrect route interface Message-ID: <201803121804.w2CI4SPD079782@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <0abdf126-64f6-9e98-f109-b843ba333086@gjunka.com>
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> > On 11/03/2018 20:57, Marek Zarychta wrote: > > On Sun, Mar 11, 2018 at 05:46:52PM +0000, Grzegorz Junka wrote: > >> On 11/03/2018 06:04, Eugene Grosbein wrote: > >>> 11.03.2018 7:01, Grzegorz Junka wrote: > >>> > >>>>> Just do not assign addresses from same network 10.20.0.0/16 to different network interfaces > >>>>> and you will be fine. Assign them all to right interface: > >>>>> > >>>>> ifconfig_em0="inet 10.20.2.14 netmask 255.255.0.0" > >>>>> ifconfig_em0_alias0="inet 10.20.2.15/32" > >>>>> ifconfig_igb0_alias0="inet 10.20.2.16/32" > >>> Interfaces meant to be all equal, last line should be: > >>> > >>> ifconfig_em0_alias1="inet 10.20.2.16/32" > >>> > >> OK, I see. So this is in case I want many IPs assigned to the same > >> interface. What if I want one IP assigned to multiple interfaces (i.e. > >> so that the additional igb0-3 effectively work as a 4-port switch)? > >> > > Please consider bonding all NICs as one bridge(4) interface. Then > > multiple IPs could be assigned to such interface. > > > > Many thanks Eugene and Marek for your suggestions. I will now need to > decide if I want to fragment the network into subnets or bridge the > interfaces. > GregJ I believe some of the problem you are experincing is addressed in this differential: https://reviews.freebsd.org/D14547 Your original configuration was(is) valid, just not common, and I have not seen this done in more than a decade, but it seems as if rstone@ also has someone doing this "multiple IP's into same subnet on seperate interfaces". -- Rod Grimes rgrimes@freebsd.org
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