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marka at isc

Feb 15, 2012, 8:27 PM


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Re: Common operational misconceptions [In reply to]

In message <4F3C76D5.9040603 [at] necom830>, Masataka Ohta writes:
> Mark Andrews wrote:
>
> > This doesn't prove that IPv6 is not operational. All it proves is
> > people can misconfigure things.
>
> How do operators configure their equipments to treat
> ICMP packet too big generated against multicast and
> unicast?

Well you need to go out of your way to get a ICMP PTB for IPv6
multicast as the default is to fragment multicast packets at the
source at network minimum mtu (RFC3542 - May 2003). That's not to
say it won't happen.

As for generation of PTB you rate limit them the way you do for
IPv4.

> Note that, even if they do not enable inter-subnet
> multicast in their domains, the ICMP packets may
> still transit over or implode within their domains.
>
> Note also that some network processors can't efficiently
> distinguish ICMP packets generated against multicast and
> unicast.

And why do you need to distingish them? You look at the inner
packet not the ICMP source if you want to rate limit return traffic.

> Masataka Ohta
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka [at] isc

Subject User Time
Common operational misconceptions jtk at cymru Feb 15, 2012, 12:47 PM
    Re: Common operational misconceptions bhmccie at gmail Feb 15, 2012, 12:57 PM
    RE: Common operational misconceptions chipps at chipps Feb 15, 2012, 1:10 PM
        Re: Common operational misconceptions mark at pcinw Feb 15, 2012, 1:26 PM
    Re: Common operational misconceptions dwhite at olp Feb 15, 2012, 1:52 PM
        Re: Common operational misconceptions bhmccie at gmail Feb 15, 2012, 2:09 PM
            Re: Common operational misconceptions jbates at brightok Feb 15, 2012, 5:20 PM
    Re: Common operational misconceptions tias at netnod Feb 15, 2012, 1:59 PM
        Re: Common operational misconceptions lists at quux Feb 17, 2012, 9:37 AM
            Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 9:41 AM
    Re: Common operational misconceptions bicknell at ufp Feb 15, 2012, 2:06 PM
        Re: Common operational misconceptions dougb at dougbarton Feb 15, 2012, 2:14 PM
            Re: Common operational misconceptions marka at isc Feb 15, 2012, 5:32 PM
    Re: Common operational misconceptions cra at WPI Feb 15, 2012, 2:36 PM
        Re: Common operational misconceptions cabo at tzi Feb 15, 2012, 2:49 PM
            Re: Common operational misconceptions mike.lyon at gmail Feb 15, 2012, 2:53 PM
            Re: Common operational misconceptions phil at cluestick Feb 15, 2012, 6:27 PM
        Re: Common operational misconceptions tkapela at gmail Feb 15, 2012, 2:51 PM
    Re: Common operational misconceptions rsk at gsp Feb 15, 2012, 2:52 PM
        Re: Common operational misconceptions chris at ctcampbell Feb 16, 2012, 2:26 AM
    Re: Common operational misconceptions cra at WPI Feb 15, 2012, 3:02 PM
        Re: Common operational misconceptions jeff-kell at utc Feb 15, 2012, 3:18 PM
    Re: Common operational misconceptions algold at lncc Feb 15, 2012, 3:23 PM
    Re: Common operational misconceptions jsw at inconcepts Feb 15, 2012, 4:10 PM
    Re: Common operational misconceptions ler762 at gmail Feb 15, 2012, 4:17 PM
    Re: Common operational misconceptions mohta at necom830 Feb 15, 2012, 4:19 PM
        RE: Common operational misconceptions nathan at atlasnetworks Feb 15, 2012, 4:55 PM
        Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 6:25 PM
    Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 4:23 PM
        Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 4:31 PM
    Re: Common operational misconceptions michael at rancid Feb 15, 2012, 4:46 PM
        Re: Common operational misconceptions jeroen at mompl Feb 18, 2012, 1:22 AM
        Re: Common operational misconceptions mukom.tamon at gmail Mar 3, 2012, 12:33 AM
    Re: Common operational misconceptions dlc at lampinc Feb 15, 2012, 5:13 PM
    Re: Common operational misconceptions meirea at charterschoolit Feb 15, 2012, 6:07 PM
    Re: Common operational misconceptions shortdudey123 at gmail Feb 15, 2012, 6:12 PM
    Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 6:16 PM
        Re: Common operational misconceptions marka at isc Feb 15, 2012, 7:12 PM
            Re: Common operational misconceptions mohta at necom830 Feb 15, 2012, 7:24 PM
                Re: Common operational misconceptions w3yni1 at gmail Feb 15, 2012, 7:26 PM
                Re: Common operational misconceptions marka at isc Feb 15, 2012, 8:27 PM
                    Re: Common operational misconceptions mohta at necom830 Feb 15, 2012, 10:11 PM
            Re: Common operational misconceptions steve.bertrand at gmail Feb 15, 2012, 8:43 PM
            Re: Common operational misconceptions sthaug at nethelp Feb 16, 2012, 4:01 AM
                Re: Common operational misconceptions marka at isc Feb 16, 2012, 5:51 AM
                    Re: Common operational misconceptions jeroen at unfix Feb 16, 2012, 6:01 AM
                        Re: Common operational misconceptions marka at isc Feb 16, 2012, 6:50 AM
            Re: Common operational misconceptions regnauld at nsrc Feb 16, 2012, 5:44 AM
                Re: Common operational misconceptions marka at isc Feb 16, 2012, 6:28 AM
                    Re: Common operational misconceptions regnauld at nsrc Feb 16, 2012, 8:53 AM
                        Re: Common operational misconceptions marka at isc Feb 16, 2012, 12:22 PM
                        Re: Common operational misconceptions daniel at fx Feb 16, 2012, 1:23 PM
        Re: Common operational misconceptions owen at delong Feb 15, 2012, 11:45 PM
            Re: Common operational misconceptions prt at prt Feb 16, 2012, 12:21 AM
    Re: Common operational misconceptions antti.ristimaki at gmx Feb 15, 2012, 8:47 PM
        RE: Common operational misconceptions chipps at chipps Feb 15, 2012, 9:04 PM
            Re: Common operational misconceptions joelja at bogus Feb 15, 2012, 9:57 PM
                RE: Common operational misconceptions chipps at chipps Feb 15, 2012, 10:00 PM
                    Re: Common operational misconceptions aftab.siddiqui at gmail Feb 15, 2012, 10:20 PM
                    Re: Common operational misconceptions shuque at upenn Feb 16, 2012, 6:08 AM
                        Re: Common operational misconceptions owen at delong Feb 16, 2012, 11:25 AM
        Re: Common operational misconceptions mwlucas at blackhelicopters Feb 16, 2012, 4:03 AM
    Re: Common operational misconceptions owen at delong Feb 15, 2012, 11:34 PM
        Re: Common operational misconceptions michael at rancid Feb 16, 2012, 2:41 PM
            Re: Common operational misconceptions cabo at tzi Feb 16, 2012, 10:39 PM
    Re: Common operational misconceptions leigh.porter at ukbroadband Feb 16, 2012, 12:32 AM
    Re: Common operational misconceptions tim at pelican Feb 16, 2012, 1:58 AM
    Re: Common operational misconceptions lykinsbd at gmail Feb 16, 2012, 4:11 AM
    Re: Common operational misconceptions jared at puck Feb 16, 2012, 4:31 AM
    Re: Common operational misconceptions davidianwalker at gmail Feb 16, 2012, 5:01 AM
    Re: Common operational misconceptions owen at delong Feb 16, 2012, 5:03 AM
        Re: Common operational misconceptions rps at maine Feb 16, 2012, 5:17 AM
        Re: Common operational misconceptions jared at puck Feb 16, 2012, 5:25 AM
    Re: Common operational misconceptions jtk at cymru Feb 16, 2012, 5:12 AM
    Re: Common operational misconceptions jeff-kell at utc Feb 16, 2012, 5:27 AM
        Re: Common operational misconceptions cra at WPI Feb 16, 2012, 6:01 AM
    Re: Common operational misconceptions regnauld at nsrc Feb 16, 2012, 5:36 AM
    Re: Common operational misconceptions jeff-kell at utc Feb 16, 2012, 5:57 AM
    Re: Common operational misconceptions ttauber at 1-4-5 Feb 16, 2012, 7:51 AM
    Re: Common operational misconceptions jbates at brightok Feb 16, 2012, 9:08 AM
        Re: Common operational misconceptions cabo at tzi Feb 16, 2012, 10:30 PM
            Re: Common operational misconceptions paul at paulgraydon Feb 16, 2012, 10:50 PM
                Re: Common operational misconceptions cabo at tzi Feb 16, 2012, 11:05 PM
                    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 6:29 AM
                        Re: Common operational misconceptions jared at puck Feb 17, 2012, 7:36 AM
                        Re: Common operational misconceptions jtk at cymru Feb 17, 2012, 8:04 AM
                            Re: Common operational misconceptions jbates at brightok Feb 17, 2012, 8:09 AM
                    Re: Common operational misconceptions jbates at brightok Feb 17, 2012, 7:14 AM
                Re: Common operational misconceptions bicknell at ufp Feb 17, 2012, 6:29 AM
                    RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 6:51 AM
                    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 6:52 AM
                        RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 7:01 AM
                        RE: Common operational misconceptions meirea at charterschoolit Feb 17, 2012, 7:12 AM
                        Re: Common operational misconceptions gary.buhrmaster at gmail Feb 17, 2012, 9:00 AM
                        Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:35 AM
                            Re: Common operational misconceptions james.cutler at consultant Feb 17, 2012, 12:45 PM
                        Re: Common operational misconceptions rps at maine Feb 17, 2012, 11:42 AM
                    RE: Common operational misconceptions meirea at charterschoolit Feb 17, 2012, 6:57 AM
                    Re: Common operational misconceptions paul at paulgraydon Feb 17, 2012, 10:32 AM
                        RE: Common operational misconceptions chipps at chipps Feb 17, 2012, 10:43 AM
                            Re: Common operational misconceptions paul at paulgraydon Feb 17, 2012, 11:56 PM
                                Re: Common operational misconceptions tvhawaii at shaka Feb 18, 2012, 12:55 AM
                                    Re: Common operational misconceptions paul at paulgraydon Feb 18, 2012, 10:55 AM
                                        RE: Common operational misconceptions gbonser at seven Feb 18, 2012, 12:36 PM
                                        Re: Common operational misconceptions tvhawaii at shaka Feb 18, 2012, 1:15 PM
            Re: Common operational misconceptions lowen at pari Feb 17, 2012, 11:45 AM
    Re: Common operational misconceptions michael at rancid Feb 16, 2012, 11:10 AM
        Re: Common operational misconceptions streiner at cluebyfour Feb 18, 2012, 12:41 PM
    RE: Common operational misconceptions dholmes at mwdh2o Feb 16, 2012, 11:41 AM
    Re: Common operational misconceptions andreas at livejournalinc Feb 16, 2012, 12:27 PM
    Re: Common operational misconceptions web at typo Feb 16, 2012, 12:35 PM
        Re: Common operational misconceptions streiner at cluebyfour Feb 16, 2012, 1:02 PM
        Re: Common operational misconceptions ttauber at 1-4-5 Feb 16, 2012, 1:40 PM
    Re: Common operational misconceptions keegan.holley at sungard Feb 16, 2012, 1:18 PM
    Re: Common operational misconceptions marka at isc Feb 16, 2012, 2:40 PM
    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 5:11 PM
        Re: Common operational misconceptions josh.hoppes at gmail Feb 16, 2012, 5:16 PM
        Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 16, 2012, 5:43 PM
            Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 6:07 PM
                Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 16, 2012, 8:58 PM
                    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 10:24 PM
                        Re: Common operational misconceptions owen at delong Feb 16, 2012, 10:41 PM
                            Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 11:03 PM
        Re: Common operational misconceptions owen at delong Feb 16, 2012, 8:48 PM
            RE: Common operational misconceptions gbonser at seven Feb 16, 2012, 9:42 PM
            Re: Common operational misconceptions thegameiam at yahoo Feb 17, 2012, 7:20 AM
    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 5:37 PM
    Re: Common operational misconceptions rms2176 at columbia Feb 16, 2012, 6:35 PM
    Re: Common operational misconceptions mohta at necom830 Feb 16, 2012, 10:54 PM
        RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 8:10 AM
    Re: Common operational misconceptions sclark at netwolves Feb 17, 2012, 7:18 AM
        Re: Common operational misconceptions jbates at brightok Feb 17, 2012, 7:48 AM
            Re: Common operational misconceptions mike.lyon at gmail Feb 17, 2012, 8:46 AM
                Re: Common operational misconceptions mikea at mikea Feb 17, 2012, 9:00 AM
                    Re: Common operational misconceptions jra at baylink Feb 17, 2012, 10:26 AM
        Re: Common operational misconceptions khelms at ispalliance Feb 17, 2012, 8:23 AM
            RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 10:28 AM
        Re: Common operational misconceptions josmon at rigozsaurus Feb 17, 2012, 9:33 AM
            Re: Common operational misconceptions jjones at danrj Feb 17, 2012, 9:47 AM
    Re: Common operational misconceptions jra at baylink Feb 17, 2012, 7:33 AM
    Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 7:44 AM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 7:46 AM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 7:51 AM
        RE: Common operational misconceptions meirea at charterschoolit Feb 17, 2012, 8:13 AM
        Re: Common operational misconceptions marcelplug at gmail Feb 17, 2012, 9:01 AM
        Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:49 AM
            Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 17, 2012, 11:04 AM
                Re: Common operational misconceptions bonomi at mail Feb 17, 2012, 11:18 AM
                    Re: Common operational misconceptions gary.buhrmaster at gmail Feb 17, 2012, 11:29 AM
                Re: Common operational misconceptions tperrine at scea Feb 17, 2012, 11:19 AM
                    Re: Common operational misconceptions randy at psg Feb 17, 2012, 11:44 AM
                Re: Common operational misconceptions owen at delong Feb 17, 2012, 5:52 PM
                    Re: Common operational misconceptions mysidia at gmail Feb 17, 2012, 9:09 PM
            Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 11:16 AM
                Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 11:24 AM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 7:51 AM
        Re: Common operational misconceptions w3yni1 at gmail Feb 17, 2012, 7:56 AM
    Re: Common operational misconceptions eugen at leitl Feb 17, 2012, 8:36 AM
        Re: Common operational misconceptions sven at cb3rob Feb 17, 2012, 9:16 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 9:31 AM
    Re: Common operational misconceptions lists at quux Feb 17, 2012, 9:35 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 9:36 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 9:51 AM
    Re: Common operational misconceptions jeff-kell at utc Feb 17, 2012, 9:55 AM
        RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 10:06 AM
    Re: Common operational misconceptions jared at puck Feb 17, 2012, 10:04 AM
    Re: Common operational misconceptions bicknell at ufp Feb 17, 2012, 10:25 AM
        Re: Common operational misconceptions lists at quux Feb 17, 2012, 10:35 AM
    Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:45 AM
    Re: Common operational misconceptions owen at delong Feb 17, 2012, 10:59 AM
        Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 11:17 AM
        Re: Common operational misconceptions lists at quux Feb 17, 2012, 11:21 AM
            RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 11:26 AM
            Re: Common operational misconceptions jlewis at lewis Feb 26, 2012, 4:34 PM
    Re: Common operational misconceptions surfer at mauigateway Feb 17, 2012, 11:18 AM
    RE: Common operational misconceptions gbonser at seven Feb 17, 2012, 11:35 AM
    Re: Common operational misconceptions owen at delong Feb 17, 2012, 11:42 AM
    Re: Common operational misconceptions todd at borked Feb 17, 2012, 11:46 AM
    RE: Common operational misconceptions ralph.brandt at pateam Feb 17, 2012, 11:47 AM
    Re: Common operational misconceptions gary.buhrmaster at gmail Feb 17, 2012, 12:25 PM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 12:26 PM
        Re: Common operational misconceptions rps at maine Feb 17, 2012, 12:40 PM
    Re: Common operational misconceptions bhmccie at gmail Feb 17, 2012, 12:48 PM
    Re: Common operational misconceptions rms2176 at columbia Feb 17, 2012, 5:36 PM
    Re: Common operational misconceptions techie at w6yx Feb 17, 2012, 11:19 PM
        Re: Common operational misconceptions mysidia at gmail Feb 20, 2012, 6:07 PM
    Re: Common operational misconceptions mohta at necom830 Feb 18, 2012, 3:31 AM
        Re: Common operational misconceptions owen at delong Feb 19, 2012, 4:24 PM
            Re: Common operational misconceptions jgreco at ns Feb 19, 2012, 5:07 PM
                Re: Common operational misconceptions marka at isc Feb 19, 2012, 5:21 PM
                    Re: Common operational misconceptions owen at delong Feb 20, 2012, 2:04 AM
            Re: Common operational misconceptions mysidia at gmail Feb 19, 2012, 5:09 PM
            Re: Common operational misconceptions mohta at necom830 Feb 19, 2012, 6:17 PM
                Re: Common operational misconceptions aj at jonesy Feb 19, 2012, 8:09 PM
                    Re: Common operational misconceptions mysidia at gmail Feb 19, 2012, 8:40 PM
            Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 20, 2012, 5:33 AM
    Re: Common operational misconceptions alvarezp at alvarezp Feb 19, 2012, 5:33 PM
    Re: Common operational misconceptions kauer at biplane Feb 19, 2012, 6:06 PM
    Re: Common operational misconceptions mohta at necom830 Feb 19, 2012, 10:42 PM
        Re: Common operational misconceptions Valdis.Kletnieks at vt Feb 20, 2012, 6:42 AM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 8:47 AM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 2:53 PM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 3:27 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 4:16 PM
        Re: Common operational misconceptions smb at cs Feb 20, 2012, 5:40 PM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 6:11 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 6:42 PM
        RE: Common operational misconceptions gbonser at seven Feb 20, 2012, 7:08 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 7:27 PM
        Re: Common operational misconceptions smb at cs Feb 20, 2012, 7:44 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 7:37 PM
    Re: Common operational misconceptions mohta at necom830 Feb 20, 2012, 8:01 PM
    Re: Common operational misconceptions lowen at pari Feb 21, 2012, 4:24 AM
        Re: Common operational misconceptions bonomi at mail Feb 21, 2012, 4:46 AM
    Re: Common operational misconceptions nanog at vanwesten Feb 21, 2012, 6:32 AM
    Re: Common operational misconceptions jra at baylink Feb 21, 2012, 6:56 AM
    Re: Common operational misconceptions michael at rancid Mar 3, 2012, 10:55 AM

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