default route via SLAAC not working ? (solved)

Mike Tancsa mike at
Sun Aug 6 16:11:18 UTC 2017

On 7/31/2017 3:37 PM, Mike Tancsa wrote:
> On 7/31/2017 2:13 PM, Trond Endrestøl wrote:
>> That's strange. I've never seen such behaviour before.
>> Maybe a packet capture can provide more clues.
> Not sure whats going on from the pcap. I dont see any values in there
> that would tell the kernel to expire a setting in less than 5min

OK, I think I found it!  quagga was enabling ipv6 forwarding in its
config.  So it seems when that is enabled, SLAAC will not pick up the
default route or at least nuke it. That sort of makes sense actually!


Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike at
Providing Internet services since 1994
Cambridge, Ontario Canada

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