VPN Down Syslog Messages

[jwalker]

Does anyone know the correct syslog messages that will let me know if my site-to-site VPN is down? Thanks.

[b.hsu]

site-to-site vpn can go down for a lot of reasons.The messages depends on the type of devices which you are using.

[jwalker]

The VPN is built from a PIX 515E to an ASA 5520. Let me know if this helps.

Thanks.