Robert Moskowitz
2008-May-29 11:23 UTC
[CentOS] Learning some sad things about the state of IPv6
We have kernel support for IPv6 in Centos, but not stateful firewall support. That requires at least the 2.6.20 kernel, which means Fedora Core 6 or some other Linux distro. None of the various free Linux firewalls have IPv6 support. Supposedly FWBuilder can manage Netfilters for a Linux Kernel, but that seems to be the extent of it. More sad facts as I uncover them.....
Christopher Chan
2008-May-30 03:43 UTC
[CentOS] Learning some sad things about the state of IPv6
Robert Moskowitz wrote:> We have kernel support for IPv6 in Centos, but not stateful firewall > support. > > That requires at least the 2.6.20 kernel, which means Fedora Core 6 or > some other Linux distro. > > None of the various free Linux firewalls have IPv6 support. Supposedly > FWBuilder can manage Netfilters for a Linux Kernel, but that seems to be > the extent of it. > > More sad facts as I uncover them.....Just use openbsd. We cannot expect Linux to rule everything. Use what best fits the job.
Robert Moskowitz
2008-May-30 13:38 UTC
[CentOS] Learning some sad things about the state of IPv6
Matt Shields wrote:> On Fri, May 30, 2008 at 6:23 AM, Karanbir Singh <mail-lists at karan.org> wrote: > >> Christopher Chan wrote: >> >>> The OP is not saying there is no ipv6 netfilter support. He said that >>> there is no ipv6 state netfilter module or something like that. >>> >> In which case either you dont know what the OP is talking about, or he >> doesnt know what he asked :D >> >> > Exactly!!! What he's complaining about is the lack of lazy-man's GUI > tool to configure ip6tables. >Not so much as complaining, but looking at easy-of-use and time allocation. I have done iptables by hand and have used a few tools. One thing I like about the tools I have found helpful is they have been good 'quick starts' for learning what to do by hand! But my source is: guug.de/veranstaltungen/ecai6-2007/slides/2007-ECAI6-Status-IPv6-Firewalling-PeterBieringer-Talk.pdf Peter, who has been involved with IPv6 for a long time, covers NetFilter on slide 8 and claims stateful support added in 2.6.20. Elsewhere I found a reference that RHel would get this end-of-year 2008, and Fedora Core 6 has it now. I looked in my /boot and saw that Centos is using 2.6.18, and I concluded from all this that I would have to work with FC6 for the next half year. Seems this conclusion is mis-informed if this NetFilter feature got backported already....> Are you absolutely sure that FWBuilder doesn't support IPv6? Because > here there a release note > fwbuilder.org/docs/firewall_builder_release_notes.html > referring to ip6tables. >I also saw that FWBuilder supports IPv6. But if the kernel only supports stateless, then that is all you can do with FWBuider, I would think. My one review of FWBuilder was that it was more than I needed at the time and Shorewall would handle my needs for my one VoIP firewall. Well I learned a lot using Shorewall. And Shorewall does NOT have IPv6 support, I asked on their list. So now I go and build a box and see if I got enough to get the job done.