how to force all packets to be ipv4 not v6

[Kimmo Paasiala]

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 at be-well.ilk.org> wrote:

> Mario Lobo <lobo at bsd.com.br> writes:
>
> > On Sun, 31 Mar 2013 01:20:17 -0400
> > Aryeh Friedman <aryeh.friedman at 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?
> >> _______________________________________________
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> >
> > 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 configure ipv6_prefer, but that appears to have been superseded by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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