Sylvain Rochet 30c89310a6 PPP, CORE, IPv6, if_up flag used instead of if6_up for outgoing IPv6 packets, fixed
We can have an IPv6 only PPP interface, checking if6_up instead of if_up fixes
IPv6 only setup.

ppp_netif_output() which were only used for common code between
ppp_netif_output_ip4() and ppp_netif_output_ip6() is not necessary
anymore, removed, reducing call stack by one.
2015-02-21 23:34:45 +01:00
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