i have problem with timeout ipsec L2L tunell. We have two routers for example i'll call tham router A and router B. Router A is in main office and B is in branch office. Detail information about configuration and version is attached down [1.]. So when i generate interesting traffic VPN tunell establish and everything works fine, but approximately twice a day tunell broke down. I checked out standard command and found errors [2.] on router B. Then a turned out debugging [3.] on both sides and forward messages to syslog, but there are no interesting warring or alerts just everything looks OK. Could be bug in IOS or is anything wrong in configuration. Can you help me guys?