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List:       freebsd-hackers
Subject:    Re: how to force all packets to be ipv4 not v6
From:       Kimmo Paasiala <kpaasial () gmail ! com>
Date:       2013-03-31 20:07:02
Message-ID: CA+7WWSdE=refEcw64YLeZGep9BC7+tjJ5qkSveB3ayQGk9bPHw () mail ! gmail ! com
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If it's just for ssh(1) and scp(1) you can use ssh_config(5) to force the
use of IPv4 based on the destination hostname.

-Kimmo


On Sun, Mar 31, 2013 at 10:43 PM, Lowell Gilbert <
freebsd-lists@be-well.ilk.org> wrote:

> Mario Lobo <lobo@bsd.com.br> writes:
>
> > On Sun, 31 Mar 2013 01:20:17 -0400
> > Aryeh Friedman <aryeh.friedman@gmail.com> wrote:
> >
> >> I have a host that for ISP reasons must have a ipv6 addr as well as
> >> the ipv4 but the ISP does not offer external ipv6 routing but all the
> >> commanes (ssh, ftp, etc.) default to ipv6 and need special options to
> >> use 4 is there anyway to force them to always use 4?
> >> _______________________________________________
> >> freebsd-hackers@freebsd.org mailing list
> >> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> >> To unsubscribe, send any mail to
> >> "freebsd-hackers-unsubscribe@freebsd.org"
> >
> > A kick and dirty way would be to comment the line:
> >
> > options       INET6   # IPv6 communications protocols
> >
> > from your kernel config and recompile.
>
> That breaks the "must have a ipv6 addr" requirement.
>
> The way to do this without completely disabling IPv6 used to be to
> configure ipv6_prefer, but that appears to have been superseded by
> ip6addrctl_policy.
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>
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