Hello
Have An ASA with the following statements:
ASA Version 7.2(4)9
route Inside 10.1.1.50 255.255.255.255 Y.Y.Y.Y 1
route Inside 10.1.1.51 255.255.255.255 Y.Y.Y.Y 1
route Outside 10.1.0.0 255.255.0.0 X.X.X.X 1
Made a Change and only add The rule:
route Outside 10.1.1.0 255.255.255.0 X.X.X.X 1
About 30m after the change The folowing messages started appeared in Syslog:
%ASA-4-419002: Duplicate TCP SYN from Outside:Z.Z.Z.Z/Z to Outside:10.1.1.50/Z with different initial sequence number
And Outside Users cant go to 10.1.1.50 and 10.1.1.51
It was a loop possibly in the outside.
after Checking the config:
the Inside entries have disappeared from the Configuration:
route Inside 10.1.1.50 255.255.255.255 Y.Y.Y.Y 1
route Inside 10.1.1.51 255.255.255.255 Y.Y.Y.Y 1
Inserting the missing statements again in config solved the problem, no more disappearing routes after that:
route Inside 10.1.1.50 255.255.255.255 Y.Y.Y.Y 1
route Inside 10.1.1.51 255.255.255.255 Y.Y.Y.Y 1
Has anyone seen this behavior?
Seems very strange that route statements simply had disappeared from config.
Thanks in advance
TG