I have an ISR 4331 Router (positioned as the internet edge) running on the latest stable version of IOS XE i.e. (16.12.03).
For some reason, at unspecific intervals all internet traffic stops working. The only way to resolve the issue is to issue the command:
INET-RTR# clear ip nat translations *
after issuing this command, everything seems to be working perfectly for a while and then I have to run it again few hours later. For now i had to implement a kron (schedule) to run the command every hour to keep services running but am looking for a permanent fix.
The router is not doing anything complex, just a few NAT and a few VPN sessions. RAM and CPU are more than fine when I check them at issue occurence.
Is it a bug? Has anyone encountered this before? Any fix you may think about is welcome.
Thanks in advance.
Regards,
Elom
