Hi,
Does your SNMP config allow full read/write access? You may want to post the relevant SNMP configs and LMS logs to verify.
Some (I hope) helpful notes:
Enabling SNMP v3 on Cisco IOS devices
To enable SNMP v3 on Cisco IOS devices, follow these steps:
* Create a View
snmp-server view iso included
* Set the Security Model (if there is no ACL then please ignore access access-list )
snmp-server group v3 auth read write < LMSView > access access-list
* Create a user and authentication protocol to be used
snmp-server user v3 auth md5
* Create a context for every vlan that you have the end host
snmp-server group netset v3 auth context
Enabling SNMP Traps on Switch Ports
Admin > Collection Settings: User Tracking > Device Trap Configuration
You must configure the Cisco switches for sending SNMPv1/SNMPv2 MAC Notification Traps when a host is connected to or disconnected from that port. Even if the device is managed with SNMPv3, LMS processes only SNMPv1/SNMPv2 traps.
Configuring SNMP Trap Listener
Admin > Collection Settings: User Tracking > Trap Listener Configuration
LMS receives SNMP traps directly from the switches if you configure the port to direct the traps through primary listeners such as HP OpenView (HPOV) or Cisco Prime Device Fault Manager (DFM) applications.
Understanding Dynamic Updates
Admin > Collection Settings: User Tracking > Dynamic Update Process Status
User Tracking generates reports on various functions and attributes of the end hosts and devices connected to your network that are managed by LMS. These reports are generated by polling the network at intervals set by the network administrator.
In addition to polling the network at regular intervals, LMS tracks changes about the end hosts and users on the network to provide real-time updates.
Dynamic Updates are asynchronous updates that are based on SNMP MAC notifications traps.
Using SNMP Walk
SNMP Walk allows you to trace the MIB tree of a device starting from a given
OID for troubleshooting, or gathering information about a certain device.
You should have System Administrator privileges to use this feature.
To use SNMP Walk:
1. Select Inventory > Tools > Device Center.
2. Select a type of problem from the Problem Type drop-down list.
3. Follow the steps mentioned in Troubleshooting Device Diagnostics to
proceed with diagnosing devices.
The troubleshooting information for a device appears in a new tab in the
form of portlets under the respective panes.
4. Click the Device Status pane.
5. Click SNMP Walk from the list of Quick Links.
The SNMP Walk dialog box appears.
6. Enter the IP address or DNS name.
7. Select the SNMP Version to be used.
For SNMP Version 1 and 2c (if it is a 64-bit counter, use SNMPv2):
1. Enter the Read community string.
For SNMP Version 3 (NoAuthNoPriv and AuthNoPriv security levels):
2. Enter the SNMPv3 Username.
3. Enter the SNMPv3 Auth Password.
4. Specify the SNMP v3 Auth Protocol. Select either the MD5 radio button
or the SHA radio button.
5. Enter the SNMP Context Name. This is optional.
For SNMP Version 3 (AuthPriv Security level):
1. Enter the SNMPv3 Username.
2. Enter the SNMPv3 Auth Password.
3. Specify the SNMP v3 Auth
Protocol. Select either the MD5 radio button or the SHA radio button.
4. Enter the Privacy Password.
5. Select a Privacy Protocol from the drop-down list. The available items are:
* DES
* 3DES
* AES128
* AES192
* AES256
6. Enter the SNMP Context Name. This is optional.
8. Enter the starting OID (optional). If you leave this field blank, the tool will
start from 1.
9. Enter the SNMP Timeout. The default value is 10 seconds.
10. Select the Output OIDs Numerically check box to print the output OIDs
numerically. This is optional.
By default, the corresponding name of the OID is printed in the output window.
11. Select the Output Indexes Numerically check box to show the output index
numerically. This is optional.
12. Select the Debug check box to enable the debugging option. This is optional.
Note: All the fields are case-sensitive.
13. Click OK to get the results.
The results will be based on the parameters you entered. When the walk is complete,
you can save it as text. A full walk may take a long time.
The read/write username and password for SNMPv3 and the read/write community string
for SNMP v1/v2c are case sensitive. The SNMP walk dialog box displays the credentials
(SNMP v1/v2c/v3) for the device from Device Credential Repository, if these are
available. Otherwise, the default values for the respective SNMP versions are displayed.
If you launch SNMP Walk feature with Network Operator/Help Desk privilege, device
credential fetching fails and the fields of read/write community strings of SNMP
v1/v2c, read/write SNMPv3 credentials are set to default values. You have to manually
enter SNMP 1/v2c/v3 credentials.
