The LTE Modem Gave Every IPv6 Prefix an Infinite Lifetime
Repeated malformed router advertisements filled an LTE interface with permanent SLAAC addresses until the current routed prefix no longer had a reliable source.
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Reliability
The Probe Timed Out After It Had Already Succeeded
A three-second wrapper killed partially successful ICMP probes, and the failover supervisor converted exit 124 into a false LTE outage.
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When the WAN Failover Script Tripped Over Its Own Lock
This morning r3 in Leipzig started producing the sort of alert storm which makes a dual-WAN setup look much less reassuring than it did on the diagram. Both WANs appeared to flap. The local platform behind the router …
Continue readingPreventing Registry Read Failures From Withdrawing Every ROA
A failed registry read must not be interpreted as an instruction to withdraw every ROA.
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