#arpnetworks 2010-11-05,Fri

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WhoWhatWhen
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toddfyou people surely have heard of traceroute6 [08:03]
coobrayes [08:04]
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dxtrtoddf: Yeah :P [08:22]
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wwww tries to remember the traceroute variant that would also show MPLS labels... [09:00]
kitkatbaripv6 configuration confuses me :( [09:01]
vcswhat about it [09:02]
kitkatbarim running debian, i enabled ipv6 forwarding and installed radvd [09:03]
wwkitkatbar: don't worry about mpls... nothing particularly to do with ipv6... [09:03]
kitkatbar:s
supposedly i have a /48 block of ipv6, just trying to figure out how to use them
[09:03]
vcskitkatbar: what confuses you [09:05]
wwyou shouldn't need radvd [09:05]
kitkatbaroh [09:05]
ww... i would be very surprised if arp's routers would listen to your advertisement packets [09:05]
vcskitkatbar: you dont need any extra software
you just need route and ifconfig
[09:05]
kitkatbarno wonder, i have been going in circles [09:06]
finkok, i just arped arp
and i think i broke the internets
[09:06]
vcslol
kitkatbar: have you requested your /48 block from support yet
[09:06]
kitkatbarno i havent, but it shows up under my control panel [09:07]
vcsare you sure its not a /64
normally you must request to have the /48 routed to you over link local
[09:07]
kitkatbarok i will open a support ticket
but im able to use myip:v6ya:know::2
:)
[09:07]
vcskitkatbar, i dont know if its helpful, but i made a wiki entry about setting up the /48 [09:08]
kitkatbaryea but wasn't it for fbsd? [09:08]
vcsIts on OpenBSD
http://wiki.arpnetworks.com/wiki/48%20IPv6%20on%20OpenBSD
but same principals apply
to any other os
[09:08]
kitkatbarill take a look, thx [09:08]
vcsbasically you enable packet fowarding
and use ifconfig to create a link local address
and add the link local address on the other side as your ipv6 gateway
then you can just add whatever ipv6 addresses you want
You fe80::2 <---------> fe80::1 Arp Networks
[09:11]
kitkatbari see [09:13]
vcsbasically for your subnet they add a route sending it to your ipv6 link local that you add
so they route the traffic to you, and you route it back to their link local
link local = local address that can only talk to things on the other side of the whatever it is connected to
so say you had two computers directly connected with an ethernet cable
they could talk over link local addresses
but could not talk to computers more than 1 level 2 hop away
[09:13]
kitkatbarinteresting [09:14]
vcsyes, but its very simple once you understand it
:)
[09:15]
kitkatbaryea i been reading tons of articles about it, not thoroughly though... but i see what your saying... thx :)
vcs will i need to request reverse delegation to be able to bind ipv6 addresses to domain names in bind & reverse?
[09:15]
vcsyes
you will need to setup a dns server to serve your reverse zone
and of course request reverse delegation
you will need to provide a hostname of your dns server (have it valid for both ipv6 and ipv4)
[09:18]
kitkatbarya i already run my own dns server but it is only valid for ipv4 atm [09:19]
coobrabhha
want my vps :(
[09:20]
vcskitkatbar: http://pastebin.com/XdcUv105 [09:20]
kitkatbar:P [09:20]
vcsexample of a reverse dns zone file
for ipv6
[09:20]
kitkatbarnice
you > google
[09:21]
vcsyeah it really is not difficult to set this up
its just there is very little info on ipv6 over link local out there :P
[09:21]
LTautomatic reverse zone builder for the truely lazy - http://www.fpsn.net/?pg=tools&tool=ipv6-inaddr [09:21]
vcsLT: yeah, hehe
but by default it includes absurd TTLs
like 3 days
[09:22]
LThmm.... I wouldn't think that matters too much on a v6 reverse, not like you have so few addresses you'd want to reuse one often? [09:23]
vcswell, true
but sitll, i leave all mine at 1 hour
why not :P
[09:23]
kitkatbaryea i thought i was going insane, reading nearly every ipv6 setup guide out there
guess the process of getting it over the local link was unknown to me :P
[09:28]
vcsthe thing most people don't understand is that you need to setup a link local address on your end
so they can route the packets through to you :P
its not just as easy as setting up their link local as a gateway
[09:29]
kitkatbarso i guess i should wait on the response email before i proceed with your guide, eh? [09:30]
vcsyes
ipv6 really is not that difficult to understand, there are just a few new things about it compared to ipv4 that trip most people up
and once they get that, they get ipv6
[09:31]
finkvcs: what are those things? [09:38]
vcslink local address for example of course
also the new ipv6 autoconfiguration
although dhcp still works fine i imagine
[09:38]
LTyou imagine wrong... dhcp can't hand out the default route
also slaac can't out the dns server address
which is all very ... useful
[09:41]
vcsahh [09:42]
LTwhen it comes to autoconfig I think the difficult part to understand is... what were they smoking [09:44]
vcshahaha
the same thing they were smoking when they decided to give ipv4 32bits of address space
[09:44]
toothit wasn't supposed to be what it is now. ;-) [09:45]
vcsyeah i know i have read into it
it was an "experiment"
[09:45]
toothmaybe if they WERE smoking something. we might have a bigger addresss space [09:46]
vcshahaha [09:46]
tooth"dude man. can you see it? a working net of all.... devices and shit.... connected... treated as equals..."
*puff*cough* yeahdude.
[09:46]
vcslol [09:47]
finkheh [09:48]
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[09:50]
toddfrtsol/rtadvd can do dns, its just an extension that is 'newer' than the origin of v6 [09:53]
jpalmervcs: I read your comment about absurd TTL's. in general TTL's are best set to the longest time you can reasonably get away with. considering most ISP's would give you a few days (or weeks) of notice before re-IP'ing your netblock.. AND, you likely know in advance when you are going to move a server/service, 1d is not an 'absurd' TTL. in fact, it a really reasonable TTL.
with the obvious understanding that, when you know a change is pending, you lower it accordingly (temporarily)
[09:55]
vcsyeah
i understand how it works
and some some isps dont like it less than one day especially for reverse dns
and will add you to spam blacklasts for doing it
[09:58]
jpalmerwell, that and.. many DNS servers will set an aritrary TTL, instead of honoring those that are extremely low. [09:59]
vcsyeah [10:00]
jpalmerso you might set it for 1 hour, but it's very possible that by doing so, you're actually telling many NS's to cache it for 4, 6, 12, or whatever that admin chose. (personally, I think that is an absurd practice. the caching NS should honor whatever TTL the zone admin dictates, but thats another conversation.)
jpalmer </rant>
[10:00]
toddfsetting an arbitrary TTL violates rfc, best common practice, and worse common sense. yes people do it, but I make it clear to any client who is moving domains around etc that if people are having issues beyond the TTL lag should permit, someone is doing something wrong, so they get what they deserve. [10:01]
jpalmertoddf: I agree wholeheartedly. but, if someone else doing something wrong impacts your ability to offer a service.. even though it's not "your issue" it's still percieved by consumers who aren't as technically oriented.. as "your problem" [10:03]
toddfyeah, doing things last minute per customer demand vs planning things to take the time to permit idiot arbitrary ttl seettings is another discussion entirely though; I was focusing on the 'last minute per customer demand' scenarios [10:04]
jpalmeroh, misunderstood. Yeah, I refuse to be held accountable when someone wants a last second change, without proper preparation. heh
you want cowboy style admin? thats fine. but don't bitch at me when you can't hang on to that bucking bull.
[10:05]
coobrahow offen are this up_the_irons on ? [10:06]
jpalmercoobra: a couple times a day usually [10:07]
toddfjpalmer: ;-) [10:08]
coobraok [10:08]
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BarberRonnyevening folks [10:39]
up_the_ironsmornin [10:41]
jpalmermorning [10:42]
up_the_ironscoobra: i will make your VPS tonight; sorry for the delay, i was at a going away party last night, drank a lot, and then slept ;) [10:42]
coobraheh nice :D
up_the_irons: did you get some :p
[10:42]
up_the_ironscoobra: haha, no i'm married [10:43]
coobrahahhaa
:D
[10:43]
IPv6Freelylol [10:44]
finkfink is not getting married! [10:44]
jpalmerjpalmer is getting marriedin march [10:45]
vcsvcs almost got married and then realized what a crazy mistake he was making [10:46]
coobraohh nice
happy for you
[10:46]
jpalmerShe'll be out of school by then, and we're already got the entire wedding and honeymoon paid for, save for any expenses we incur while on the honeymoon. (room service, dining out, etc.) [10:48]
BarberRonnyBarberRonny is married to two lovely Yemeni girls [10:50]
kitkatbarlol [10:50]
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BarberRonnyoh i suck so much at webdesign :-/
time for a new hobby
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finkRandalSchwartz: http://i.imgur.com/1OgT0.jpg [13:36]
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toothis that a model M? [13:54]
coobra:D [13:56]
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jdoeYOUR MOM IS A MODEL M
(heavy, noisy, and generally built like a tank)
[14:39]
toothyou'd still do her [14:40]
finktooth: yea, like zfs on root
it sounded good in my head
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richardquisumbinany schedule on the provisioning? [15:57]
up_the_ironsrichardquisumbin: i'm doing a round tonight [15:57]
richardquisumbinthanks [15:58]
up_the_ironsnp [15:59]
coobralets sleep some :D [16:11]
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[18:48]
azmarcoanyone play w ubiquiti networks gear before? [19:13]
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azmarcowow. after an hour or so, it is really nice stuff [20:04]
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jazz57Anyone on kvr12? [22:15]
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jazz57Anyone experiencing connectivity issues? [22:19]
My vps lost connectivity between roughly 10:00 - 10:15 pm local
Looks like it's back up now.
[22:26]
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up_the_ironsjazz57: i see an 800 mbps burst to hit kvr12
the vm hosts have 100 mbps links, so that definitely saturated it
[22:53]
jazz57Possibly a DDOS attack?
Any idea where that came from?
[22:54]
up_the_ironsjazz57: possible. if it was, it would surely be spoofed, so finding out the src IP(s) is not useful [22:56]
jazz57Well I'm glad it didn't last longer than it did. [23:00]
up_the_ironssame here :) [23:05]
jazz57up_the_irons: While I have you here, any updates on your carriers? I noticed XeeX is out and I believe I read you were thinking of changing out MZIMA for Level3. Is that still the plan? [23:06]
up_the_ironsjazz57: PacketExchange (formerly Mzima) seem to have got their act together, so I am keeping them for the time being. [23:15]
jazz57Ping times are great, so I have no complaints. [23:23]
up_the_ironsjazz57: I'm going to be joining PacketExchange's private peering network, so I'll grab like 120 peers all at once. Probably won't matter much if you live in the US, but I'm excited about this b/c one peer I will get is China Telecom, which is huge. I can't peer with them directly, despite my best efforts (i'm too small for them to care)
time to provision some VPS'.. man i'm tired though
[23:27]
jazz57That's really cool. You have a very nice network. My other VPS provider is single homed with TWTC and they route most of their traffic through SJC.
Good luck and thanks for the info!
[23:29]
up_the_ironsThanks!
Glad you like it
[23:32]
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finkhave you guys used openvpn with ip6 [23:58]

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