Re: IPv6, ULAs and FreeBSD

2016-05-28 Thread Mark Tinka
On 28/May/16 20:40, Niklaas Baudet von Gersdorff wrote: > As I wrote, I only got a /112 form my ISP. This still exceeds the amount > of addresses that I need but I decided to go for ULAs for flexibility. > > Anyway, it's working. :-) I'd suggest going back to your ISP and asking for at least a

Re: IPv6, ULAs and FreeBSD

2016-05-28 Thread Niklaas Baudet von Gersdorff
Mark Tinka [2016-05-28 14:11 +0200] : > Why don't you have GUA IPv6 address space? > > Your ISP should be able to assign you a /48 or /56 prefix for you to > use on your LAN. That's more than plenty of space. As I wrote, I only got a /112 form my ISP. This still exceeds the amount of addresses t

Re: IPv6, ULAs and FreeBSD

2016-05-28 Thread Mark Tinka
On 28/May/16 08:38, Niklaas Baudet von Gersdorff wrote: > Thanks for repeating that. That's how I understood it as a novice too. > :-) And that's why I thought I should not go for them. Because I don't > have many GUAs available, I thought I should go for ULAs then. Why don't you have GUA IPv6

Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread Niklaas Baudet von Gersdorff
Mark Tinka [2016-05-27 23:57 +0200] : > On 27/May/16 21:02, Kevin Oberman wrote: > > > This is fine, but why not use link-local for the VPN links? That's > > the primary reason for them. > > That's really not good advice. > > I'd caution against using link-local addresses for any type of > serv

Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread Mark Tinka
On 27/May/16 21:02, Kevin Oberman wrote: > This is fine, but why not use link-local for the VPN links? That's the > primary reason for them. That's really not good advice. I'd caution against using link-local addresses for any type of service. Link-local addresses are used for host-to-host co

Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread Mark Tinka
On 27/May/16 21:30, Niklaas Baudet von Gersdorff wrote: > Is it? I didn't know that I can use link-local addresses for the VPN > too. How do I decide between link-local or unique-local addresses for > the VPN? What do I make the decision dependent on? Don't do it! For any service, use GUA's. A

Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread Niklaas Baudet von Gersdorff
Kevin Oberman [2016-05-27 12:02 -0700] : > This is fine, but why not use link-local for the VPN links? That's the > primary reason for them. (N.B. I am not aware of your architectural > details, and ULAs for the VPNs might be appropriate.) Is it? I didn't know that I can use link-local addresses

Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread Kevin Oberman
On Fri, May 27, 2016 at 12:09 AM, Niklaas Baudet von Gersdorff < nikl...@box-fra-01.niklaas.eu> wrote: > Kevin Oberman [2016-05-26 21:11 -0700] : > > > The most valid use is when you can only get a /64 from your provider. > > I got a /112 for each of my virtual servers... So, I decided to go for >

Re: IPv6, ULAs and FreeBSD,Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread sthaug
> > I don't see any problem using ULA with for instance /124 netmask: > [...] > > 96 bit works too: > [...] > > FreeBSD version? Mine is 10.3-RELEASE-p3. lab1 is 10.3-PRERELEASE r297313M lab2 is 10.2-STABLE r288601M Steinar Haug, Nethelp consulting, sth...@nethelp.no

Re: IPv6, ULAs and FreeBSD,Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread Niklaas Baudet von Gersdorff
sth...@nethelp.no [2016-05-27 08:53 +0200] : > I don't see any problem using ULA with for instance /124 netmask: [...] > 96 bit works too: [...] FreeBSD version? Mine is 10.3-RELEASE-p3. Dunno. Could be that I made some mistake but I also tried the setup with /96 and adding the route to the tap0

Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread Niklaas Baudet von Gersdorff
Kevin Oberman [2016-05-26 21:11 -0700] : > There are a lot of excellent reasons to avoid ULAs. There are a very > few good, or even so-so reasons to use them. The most commonly cited > reason is security which is almost always wrong. In almost 20 years of > working with IPv6 I have yet to see any

Re: IPv6, ULAs and FreeBSD,Re: IPv6, ULAs and FreeBSD

2016-05-27 Thread sthaug
> > Here lies the first problem. It seems that it's not legitimate to assign > > /96 subnets when using unique local addresses (ULAs). I was right > > getting some /48 subnet for my local IPv6 network; some easy way to get > > one generated randomly is http://unique-local-ipv6.com/ . But instead of

Re: IPv6, ULAs and FreeBSD

2016-05-26 Thread Mark Tinka
On 27/May/16 06:11, Kevin Oberman wrote: > There are a lot of excellent reasons to avoid ULAs. There are a very few > good, or even so-so reasons to use them. The most commonly cited reason is > security which is almost always wrong. In almost 20 years of working with > IPv6 I have yet to see any

Re: IPv6, ULAs and FreeBSD

2016-05-26 Thread Mark Tinka
On 26/May/16 21:36, Niklaas Baudet von Gersdorff wrote: > Here lies the first problem. It seems that it's not legitimate to assign > /96 subnets when using unique local addresses (ULAs). I was right > getting some /48 subnet for my local IPv6 network; some easy way to get > one generated randoml

Re: IPv6, ULAs and FreeBSD

2016-05-26 Thread Kevin Oberman
On Thu, May 26, 2016 at 12:36 PM, Niklaas Baudet von Gersdorff < st...@niklaas.eu> wrote: > I was eventually able to solve this issue. I asked for help on several > mailing lists. So, for reference, here are links to the relevant > threads: > > https://lists.freebsd.org/pipermail/freebsd-questions

Re: IPv6, ULAs and FreeBSD

2016-05-26 Thread Niklaas Baudet von Gersdorff
I was eventually able to solve this issue. I asked for help on several mailing lists. So, for reference, here are links to the relevant threads: https://lists.freebsd.org/pipermail/freebsd-questions/2016-May/271810.html https://lists.freebsd.org/pipermail/freebsd-net/2016-May/045349.html https://w