SNMP
{Simple Network Management Protocol}
Ø
Used
to communicate between a Network Management System(NMS) and managed devices(e.g. PCs, routers, or switches)
Ø
A
protocol used to monitor , configure and receive alerts from managed network devices

SNMPv3 Terms:-
Ø
SNMP View:-define
the what you able to see on cisco device
Ø
SNMP Group:- we
associate the view with group that identify the type of access like read-only or read-write and also what
kind of security of enabled
Ø
SNMP user:- we
associate that with user that defined the what the username is what the
password
Internet (ISP) interfaces Configuration
Ø
internet(config)#interface
serial 1/0
Ø
internet(config-if)#description
CONNECTED WITH R1
Ø
internet(config-if)#ip
address 100.100.100.1 255.255.255.252
Ø
internet(config-if)#clock
rate 64000
Ø
internet(config-if)#no
shut
Ø
internet(config-if)#exit
Ø
internet(config)#ip
route 192.168.2.0 255.255.255.0 serial1/0
Ø
R1(config)#interface
Serial2/0
Ø
R1(config-if)#description
CONNECTED WITH INTERNET
Ø
R1(config-if)#ip
address 100.100.100.2 255.255.255.252
Ø
R1(config-if)#no
shut
Ø
R1(config-if)#exit
Ø
R1(config)#interface
Ethernet1/1
Ø
R1(config-if)#
description CONNECTED WITH SW1
Ø
R1(config-if)#
ip address 192.168.2.1 255.255.255.0
Ø
R1(config-if)#no
shut
Ø
R1(config-if)#exit
SNMPv3 Configuration:-
Ø
R1(config)#snmp-server
view FULL-ACCESS iso included
ü
view:- Define
an SNMP MIB view
ü
FULL-ACCESS:
- Name of the view
ü
iso:- MIB
view family name (meaning Full Access)
ü
included:- MIB
family is excluded from the view
Ø
R1(config)#snmp-server
group CCNP-GROUP v3 priv match exact write FULL-ACCESS
ü
group:- Define
a User Security Model group
ü
CCNP-GROUP:
- Name of the group
ü
v3:- group
using the User Security Model (SNMPv3)
ü
priv:-
using authentication and encryption security level
ü
write:- specify
a write access for the group
Ø
R1(config)#snmp-server
user SHUBHAM CCNP-GROUP v3 auth sha cisco123 priv des56 cisco12345
ü
SHUBHAM:
- username which we authenticate
ü
CCNP-GROUP:
- Group to which the user belongs
ü
v3:- user
using the v3 security model
ü
auth:- authentication
parameters for the user
ü sha:- Use
HMAC SHA algorithm for authentication
ü
cisco123:- authentication
password for user
ü
priv:- encryption
parameters for the user
ü
des56:- Use
56 bit DES algorithm for encryption
ü
cisco12345:- privacy
password for user
Troubleshooting &
Verification Commands:-
Ø
show
ip route
Ø show ip interface brief
Ø show snmp {shows the snmp
statistics}
ü
To Monitor the Router through SNMP
ü
Download PRTG (trial 30 days) Software to monitor the Router
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