disable IPv6?
Chris Adams
cmadams at hiwaay.net
Fri Jan 25 23:17:39 UTC 2013
Once upon a time, Wolfgang S. Rupprecht <wolfgang.rupprecht at gmail.com> said:
> The ISP's that give you IPv6 addresses (Comcast for one) will also use
> dhcp to give you a whole 64-bit network of addresses via DHCP-PD.
That's typically to a router though, not a host.
> I'm curious how many of the people that are disabling their IPv6
> actually have painless access to IPv6 and are ignoring it.
I have IPv6 at my home, but with the more common config using RAs. If I
don't disable the DHCPV6C option in the ifcfg-eth0 file, bringing up an
interface with "traditional" network scripts (e.g. ifup) takes 66
seconds. With DHCPV6C=no, it takes 3 seconds (DHCP for IPv4). Given
the very small percentage of environments that are using DHCPv6 today,
adding over a minute per interface startup to the default config is
wrong.
Oddly, it appears that nothing is taking the DNS information from the
RAs and adding it to /etc/resolv.conf. IIRC that used to work with ifup
(but maybe I'm remembering wrong).
--
Chris Adams <cmadams at hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.
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