#17510: /60 rather than /64 IPv6 'interface' route created on LAN interface
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Reporter: markzzzsmith@… | Owner: developers
Type: defect | Status: reopened
Priority: normal | Milestone:
Component: base system | Version: Barrier Breaker 14.07
Resolution: | Keywords:
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Comment (by markzzzsmith@…):
I also noticed that IPv6 on the WAN interface isn't enabled by default, at
least with PPP/PPPoE. That should be safe to do (and I'd encourage it),
because there are two mechanisms that will should prevent it causing
trouble.
Firstly, the ISP's BRAS/BNG/NAS should generate an PPP LCP Protocol Reject
if the client attempts to start a Network Control Protocol (like IPV6CP or
IPCP for IPv4) that the BRAS/BNG/NAS doesn't support. This would cause
further negotiation of IPv6 to cease.
Secondly, there have been issues with CPEs locking up when the
BRAS/BNG/NAS has pro-actively attempted to bring up IPv6 and the CPE
doesn't support it. In that case the CPE was broken, it should have been
generating PPP LCP Protocol Rejects. However, as a work around, ISPs can
make their BRAS/BNG/NAS 'passive' regarding NCP negotation. For these
broken CPEs, they would only attempt to bring up IPCP and therefore would
not cease up.
I can lodge another ticket for this feature if it would be better.
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Ticket URL: <https://dev.openwrt.org/ticket/17510#comment:6>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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