#arpnetworks 2011-01-10,Mon

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WhoWhatWhen
coobrahow do i add the ips ?
freebsd was a longtime ago
there is no /etc/network/interfaces
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coobraifconfig_em0_alias0="inet 174.136.101.147 netmask 255.255.255.248"
is that how i add the ips ?
[02:05]
merkyi'm unfamiliar with freebsd
maybe try it?
[02:15]
coobrahttp://pastebin.com/3emmwQcZ
is that how
dont rember ?
[02:16]
merkythat looks like first response on google
oh hangon
set additionals ips to netmask 255.255.255.255
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-virtual-hosts.html
[02:19]
coobrahmms ok [02:20]
merkynot the first one in subnet thoguh
fconfig_fxp0_alias4="inet 202.0.75.17 netmask 255.255.255.240"
ifconfig_fxp0_alias5="inet 202.0.75.18 netmask 255.255.255.255"
ifconfig_fxp0_alias6="inet 202.0.75.19 netmask 255.255.255.255"
ifconfig_fxp0_alias7="inet 202.0.75.20 netmask 255.255.255.255"
like see how they added a seperate subnet
so first one has netmask of 240
then next ones 255
so if the extra ips are on diff subnet to your main ip
[02:21]
coobrathis have the same subnet [02:21]
merkyok [02:22]
coobra255.255.255.255 <-- is one ip ? [02:22]
merkyyaeh
so the non alias oen has 248
and the next ones have 255
[02:22]
coobraahha [02:23]
merkyifconfig_em0="inet 174.136.101.146 netmask 255.255.255.248"
ifconfig_em0_alias0="inet 174.136.101.147 netmask 255.255.255.248"
ifconfig_em0_alias1="inet 174.136.101.148 netmask 255.255.255.248"
ifconfig_em0_alias2="inet 174.136.101.149 netmask 255.255.255.248"
ifconfig_em0_alias3="inet 174.136.101.150 netmask 255.255.255.248"
so in that example
change all the alias ones to have 255.255.255.255
[02:23]
coobraifconfig_em0="inet 174.136.101.146 netmask 255.255.255.248"
ifconfig_em0_alias0="inet 174.136.101.147 netmask 255.255.255.255"
ifconfig_em0_alias1="inet 174.136.101.148 netmask 255.255.255.255"
ifconfig_em0_alias2="inet 174.136.101.149 netmask 255.255.255.255"
ifconfig_em0_alias3="inet 174.136.101.150 netmask 255.255.255.255"
like that then
[02:23]
merkyyip
cross your fingers
:)
[02:24]
coobraok i try then :D [02:25]
merkycool [02:25]
coobrahmms
i dont think it works
[02:33]
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coobrahttp://pastebin.com/3RXhREV2
that is wierd :/
[02:41]
merkywhat's it do?
PING 174.136.101.150 (174.136.101.150) 56(84) bytes of data.
64 bytes from 174.136.101.150: icmp_req=2 ttl=57 time=127 ms
--- 174.136.101.150 ping statistics ---
2 packets transmitted, 1 received, 50% packet loss, time 1008ms
rtt min/avg/max/mdev = 127.759/127.759/127.759/0.000 ms
wtf it missed the first packet?
but anyway it can ping
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coobraok [03:13]
hmms
its like i need to ping the ip one time then it works heh
:D
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RandalSchwartzmerky - first packet might be missed because arp didn't reply fast enough.
that's arp, not ARP :)
if you ping an IP for which you don't have the MAC, you have to arp first.
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merkyhmm
then the same thing would happen with syn packets
and you'd get delayed connections..
[05:42]
RandalSchwartzand that does happen
oh wait
it doesn't even *send* the syn until it has a MAC
it can't
wait wait
[05:43]
merkywell router doesn't forward it along [05:44]
RandalSchwartzit uses the local mac of the router
the packet has the destination IP, but the local MAC
[05:44]
merkyi'm getting more confused not less [05:44]
RandalSchwartzso in general, there's no delay
and it always has the MAC of the router, since otherwise it wouldn't have a default route
[05:44]
merkyno it doesn't. [05:45]
RandalSchwartzin general, you won't have the MAC of the destination IP, unless it's on the same segment [05:45]
merkya default route is an ip not a mac
mac's get cached
[05:45]
RandalSchwartzyes - and you have the mac of the ip
except maybe if the cache flushes
[05:45]
merkybut it asks for them again and again [05:45]
RandalSchwartzgenerally not
macs are long-cached
I've had problems with that before
[05:45]
merkythere was a cable isp here who used to have a really big arp domain
and routers used to fail from all the arps.
so if you used a shit router then the router would become unresponsive.
[05:46]
RandalSchwartzwell, in that case, the caches would get flushe dmore [05:46]
merkyit took them ages to fix it
so that there was multiple arp domains
but really this whole arp thing seems really lame to me
[05:46]
RandalSchwartzbut anyway, the reason that syn works is that most of the time, you're talking to a remote IP
and to talk to them, you first have to know your local router's mac
and that's typically cached
if something about that needs retry, it happens transparently
on the other hand, ping insists on reporting that first timeout
since that timeout really happened
[05:47]
merkyyeah
well hopefully he got his ip's working
[05:48]
RandalSchwartzby the way, setting up a range of IPs is easy if you use the advanced setup
I have: ipv4_addrs_em0=208.79.95.2-14/28
[05:48]
merkyoh i didn't know that, i'm not acutally a customer yet. [05:49]
RandalSchwartzand that sets up all 12 aliases [05:49]
merkyand i don't use freebsd. [05:49]
RandalSchwartzin other words, just show the range, and the netmask [05:49]
merkyi know how it works in openbsd [05:49]
RandalSchwartzand that takes care of everything [05:49]
merkythat's actually kind of cool
well ijust told him to check the freebsd handbook
cos whitefang was saying everything is documented in there
[05:49]
RandalSchwartzso it basically directly interprets the type of numbers you'd be given
yeah - this isn't documented well yet
and I discovered it in some blog
then verified that it worked that way
[05:50]
merkyoh yip [05:50]
RandalSchwartzit's like perl docs or apache docs
early tutorials had to use primitive stuff
[05:51]
merkyi hate perl docs [05:51]
RandalSchwartzbut then the tool got more advanced [05:51]
merkyand everyone still uses the old ways [05:51]
RandalSchwartzI hate tutorials from the mid-90's still being treated as modern [05:51]
merkywell i kind of knew about the netmask stuff
but for some reason it skipped my mind
heh
openbsd hasn't changed a lot
you have hostname.em0
then inet blah blah
then inet alias blah blah
[05:52]
RandalSchwartzgotta start getting ready for work [05:53]
merkyheh
i should get to bed
it's 3 am here
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[16:16]
crazedhm ports for php5 seems to be broken
can't fetch the file anywhere
[16:21]
azmarcoi asked about that earlier on silc
lemme see if they figured it out
nothing. but, packages appear to be back on ftp3
[16:22]
crazedhm [16:24]
azmarcowhat mirror are you trying? [16:24]
crazed*.php.net it seems [16:25]
azmarcooh. now i gotcha
i automatically s/ports/packages/
[16:25]
crazedslightly frustrating, just got my vps and wanted to start using it lol
oh well i'll spend time migrating my home dir instead
[16:26]
azmarcouse packages [16:26]
crazeddoes the php5 package come with fpm ? [16:26]
azmarcono idea [16:27]
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