12
Create a Global Access
Class
ip access-list restrict-ssh
remark “allow ssh only to the
loopback address”
permit ssh any <your loopback IP
address> 255.255.255.255
deny ssh any any
exit
configure access-list restrict-ssh permit
tcp any eq 22 <your loopback IP address>
0.0.0.0
configure access-list restrict-ssh deny tcp
any eq 22 any
apply the ACL as an access
class
access-class in restrict-ssh
Diagnosing NSI Interface
Issues
diagnose interface issues
show controller eth
show controller upstream
show controller qam
show controllers ethernet
show controllers cable-upstream
show controllers cable-downstream
show cpu-memory process list
show gigabit-rx-cpu-rate
diagnose High Availability
issues
show ha hardware qam 8x96
recovery
show ha switch fault monitor status
obtain System Information
show image committed
show environment
Processes
show dmesg
show log
show tech
show logging
show tech-support