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OpenBSD General Other questions regarding OpenBSD which do not fit in any of the categories below. |
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Any info on OpenBSD 5.6's new default IPv6 to off change?
Hi, good morning everyone.
I am interested in understanding the bit about OpenBSD 5.6's networking stack change to have IPv6 disabled by default on new interfaces. I would like to know the reason for the change and also how will it affect a OpenBSD installation setup as a firewall gateway for both IPv4 and IPv6 (IPv4 makes use of NAT in PF, but IPv6 is just raw router with basic firewalling)? I currently make use of Dibbler IPv6 client to pull relevant DHCPv6 info from my ISP (Comcast HSI), because one cannot use pure IPv6 Router Advertisements because once you enable IPv6 routing, that is disabled. I then make use of radvd to advertise out the prefix I am delegated from Comcast obtained previously in Dibbler client (I do not make use of the Dibbler server as that's functionality I do not need). So my question is...will having IPv6 disabled on all interfaces by default break my setup, and what can I do to prevent that? Midnight |
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I realized I didn't answer your first question.Henning Brauer (henning@) wrote about this in the OpenBSD Journal.
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Thank you for the reason why. Now if only I could figure out why after upgrading to 5.6 my IPv6 access is broken.
I narrowed it down to the ifconfig command I run to plumb up the main IPv6 address even with prefixlen set to 64, no route is added to route the whole subnet through that interface. And no command I try with route add and every version ifconfig command will not add the appropriate route for the local subnet. What am I doing wrong? Let me see if I can copy output to show what I'm talking about. |
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ipv6, rtsol |
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