On 03/07/12 13:35, Denis Ovsienko wrote:
Does anybody know where this difference comes from?
The difference comes from NetworkManager. Its efforts in reproducing
high-metric RTPROT_KERNEL routes with low-metric RTPROT_STATIC ones are
effectively hiding the kernel issue outside of CeroWrt runtime. Would it be
better to add a watchdog shell script, which does the same, or patch the kernel?
Isn't the main issue that IPv4 cannot autoconfigure routes? For IPv4,
you *need* to set default routes either manually or via DHCP. In IPv6
this all tends to be done via RA announcements and autoconfiguration.
In fact, I think the NetworkManager static route only comes from
DHCPv6. I have a router here (WNR2000v2) that only handles 6to4 traffic
and dishes out addresses via DHCPv6. To get proper conectivity, I also
have a separate gogoc tunnel that is advertised only via RA packets.
NetworkManager adds a static default route, but only for the 6to4
router. The gogc machine only gets a kernel-derived route.
I cannot see that a kernel patch that reports kernel-derived routes as
static would be accepted upstream. I think it is more likely that
quagga will need patching to obtain the autoconfigured routes from the
kernel somehow.
--
Robert Bradley
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