PIX says "no route" even though there is

In a fully meshed VPN of several PIXen, I see log messages like this:

%PIX-6-110001: No route to 10.1.212.254 from 10.1.213.251

with a disquieting frequency, but of course always when I'm not in the office. The network uses static routing exclusively, and by the time I log in to the PIX in question "show route" invariably shows the route is there as it should. Nor do I see any correlation with other log messages such as the occasional bursts of "%PIX-7-702205: ISAKMP Phase

2 retransmission" probably caused by line problems.

What might lead a PIX to temporarily deny the existence of a static route, and how can I diagnose that?

TIA

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Posted 5 years ago by Tilman Schmidt in Cisco Systems

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