Skip to main content

linux - IPv6 prefix management

So, my SiXXS' POP seems to be in trouble and I was
thinking in changing to HE. The idea is connect to HE, change radvd setup and... lots of
other
thinks:




  • UFW,
    specially in laptops, which only allows access to some development services from some
    RFC1918 addresses and to my global IPV6 addresses


  • My servers have fixed IPv6 addresses
    to easily DNS setup



  • Some
    software needs some type of reference to the "local" addresses in setup (like squid acls
    or libvirt
    networks)


  • etc.




So
my question is: what is the best way to deal with this?, let's suppose that tomorrow I
need to change my tunnel broker, or for whatever reason I need to change my prefix and
use another provider as a backup, do I really need to review all my setup? The only
solution I can think of is ULAs and NAT which I dislike (or ULAs plus global addresses
but I think this setup is not recommended)



(A
possible solution if I understand correctly would be Mobile IPv6, but is this really an
option today?, how many providers work with
it?)



Summarizing: what options do I have to
simplify the administrative task of changing IPv6 prefix of a
network?




UPDATE



Thank
you very much for your answers but I think that I have left some things unexplained that
are important for this question: href="https://en.wikipedia.org/wiki/IPv6_address#Default_address_selection"
rel="nofollow
noreferrer">https://en.wikipedia.org/wiki/IPv6_address#Default_address_selection
gives a table of the selection preference in case you have more than one address. As
both SiXXS and HE use 2001:: prefixes, this means that (if I read the table correctly)
the global addresses will always be selected and never the ULAs. So if I setup squid to
limit access based on ULAs, it will not work because all clients will identify
themselves with the global address. There's another href="https://serverfault.com/questions/349950/ipv6-without-nat-but-what-about-an-isp-change">question
about the same issue but the answer, using both ULAs and global addresses works because
the public prefix is 2000:: in this case.



I am
right?, or I'm wrong about address preference?

Comments

Post a Comment

Popular posts from this blog

linux - iDRAC6 Virtual Media native library cannot be loaded

When attempting to mount Virtual Media on a iDRAC6 IP KVM session I get the following error: I'm using Ubuntu 9.04 and: $ javaws -version Java(TM) Web Start 1.6.0_16 $ uname -a Linux aud22419-linux 2.6.28-15-generic #51-Ubuntu SMP Mon Aug 31 13:39:06 UTC 2009 x86_64 GNU/Linux $ firefox -version Mozilla Firefox 3.0.14, Copyright (c) 1998 - 2009 mozilla.org On Windows + IE it (unsurprisingly) works. I've just gotten off the phone with the Dell tech support and I was told it is known to work on Linux + Firefox, albeit Ubuntu is not supported (by Dell, that is). Has anyone out there managed to mount virtual media in the same scenario?
Post a Comment
Read more

hp proliant - Smart Array P822 with HBA Mode?

We get an HP DL360 G8 with an Smart Array P822 controller. On that controller will come a HP StorageWorks D2700 . Does anybody know, that it is possible to run the Smart Array P822 in HBA mode? I found only information about the P410i, who can run HBA. If this is not supported, what you think about the LSI 9207-8e controller? Will this fit good in that setup? The Hardware we get is used but all original from HP. The StorageWorks has 25 x 900 GB SAS 10K disks. Because the disks are not new I would like to use only 22 for raid6, and the rest for spare (I need to see if the disk count is optimal or not for zfs). It would be nice if I'm not stick to SAS in future. As OS I would like to install debian stretch with zfs 0.71 as file system and software raid. I have see that hp has an page for debian to. I would like to use hba mode because it is recommend, that zfs know at most as possible about the disk, and I'm independent from the raid controller. For us zfs have many benefits, ...
Post a Comment
Read more

linux - Awstats - outputting stats for merged Access_logs only producing stats for one server's log

I've been attempting this for two weeks and I've accessed countless number of sites on this issue and it seems there is something I'm not getting here and I'm at a lost. I manged to figure out how to merge logs from two servers together. (Taking care to only merge the matching domains together) The logs from the first server span from 15 Dec 2012 to 8 April 2014 The logs from the second server span from 2 Mar 2014 to 9 April 2014 I was able to successfully merge them using the logresolvemerge.pl script simply enermerating each log and > out_putting_it_to_file Looking at the two logs from each server the format seems exactly the same. The problem I'm having is producing the stats page for the logs. The command I've boiled it down to is /usr/share/awstats/tools/awstats_buildstaticpages.pl -configdir=/home/User/Documents/conf/ -config=example.com awstatsprog=/usr/share/awstats/wwwroot/cgi-bin/awstats.pl dir=/home/User/Documents/parced -month=all -year=all...
Post a Comment
Read more