SNMPv2c and SNMPv3 Polling and Traps Configuration in Cisco (IOS-XR)

SNMPv2c

community: snmpcomm123

management IP address: 192.168.10.100

SNMP Polling Server: 192.168.20.199

SNMP Trap Server: 192.168.20.200

SNMPv2c Polling Configuration:

ipv4 access-list SNMP-ALLOW

 10 permit ipv4 host 192.168.20.199 any

snmp-server contact DC-ADMIN

snmp-server location Datacentre

snmp-server trap-source Loopback0

snmp-server community snmpcomm123 RO SystemOwner IPv4 SNMP-ALLOW

SNMPv2c Traps Configuration:

configure

snmp-server traps

snmp-server host 192.168.20.200 traps snmpcomm123  

Verify:

/usr/bin/snmpwalk -M /usr/local/snmp/mibs -v2c -c snmpcomm123 192.168.10.100:161 sysDescr.0 

SNMPv2-MIB::sysDescr.0 = STRING: Cisco IOS XR Software (Cisco ASR9K Series),  Version 6.2.3[Default]

Copyright (c) 2018 by Cisco Systems, Inc.

SNMPv3

user: snmpuser

Security Level: Authpriv with SHA authentication and AES 128bit Privacy

management IP address: 192.168.10.100

AuthPass: authpass123!

PrivPass: privpass123!

View Name: ALLVIEW
Username:

Group Name: SNMPGROUP

SNMP Polling Server: 192.168.20.199

SNMP Trap Server: 192.168.20.200

SNMPv3 Polling Configuration:

ipv4 access-list SNMP-ALLOW

 10 permit ipv4 host 192.168.20.199 any

snmp-server view ALLVIEW 1.3 included

snmp-server group SNMPGROUP  v3 priv notify ALLVIEW read ALLVIEW IPv4 SNMP-ALLOW

snmp-server user SNMPUSER SNMPGROUP v3 auth sha authpass123! priv aes 128 privpass123! IPv4 SNMP-ALLOW

SNMPv3 Traps Configuration:

snmp-server host 192.168.20.200 traps version 3 priv SNMPUSER

Additional Tip: (Manual trigger of SNMP traps)

#snmp test trap interface link-down
#snmp test trap interface link-up

Here's the Juniper version for SNMPv2c and SNMPv3 configuration --> SNMP Configuration in Juniper