Save the configuration on both routers.
Save the running configuration to the startup configuration from the privileged EXEC prompt.
Configure SNMPv3 Security using an ACL.
Simple Network Management Protocol (SNMP) enables network administrators to monitor network performance, mange network devices, and troubleshoot network problems. SNMPv3 provides secure access by authenticating and encrypting SNMP management packets over the network. You will configure SNMPv3 using an ACL on R1.
Configure an ACL on R1 that will restrict access to SNMP on the 192.168.1.0 LAN.
Create a standard access-list named PERMIT-SNMP.
R1(config)# ip access-list standard PERMIT-SNMP
Add a permit statement to allow only packets on R1’s LAN.
R1(config-std-nacl)# permit 192.168.1.0 0.0.0.255
R1(config-std-nacl)# exit
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