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The first step is to enable SNMPv3 on in the /etc/snmp/snmpd.conf file, then restart the daemon.
Required Linux SNMPD Configuration for SNMPv3 communication to
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NMIS9
Add the following configuration to the top, edit the /etc/snmp/snmpd.conf file as the root user, e.g.
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| Code Block |
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/usr/local/nmis9/bin/admin/testtests.pl act=snmp node=NODENAME |
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Update NMIS GUI to show new options
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# Make a copy of original incase you have customization and forget to add it # If command says it doesnt exisit you can skip to next command sudo cp /usr/local/nmis9/contribconf/perl-Table-Nodes.nmis /usr/local/nmis9/conf/Table-Nodes.nmis.bak # Adding in new SNMPv3 Options sudo cp /usr/local/nmis9/contrib/perl-net-snmp-256/Table-Nodes.nmis /usr/local/nmis9/conf |
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| Vendor / Operating System | SHA | AES | NMIS Considerations |
|---|---|---|---|
| Cisco IOS | SHA1 | AES256 | aes256c needs to be configured as the entry.configuration.privprotocol value in NMISvalue |
| SHA1 | AES192 | aes192c needs to be configured as the entry.configuration.privprotocol value in NMIS | |
| SHA1 | AES128 | ||
| Cisco NX-OS | SHA1 | AES128 | |
| SHA256 | AES128 | ||
| Fortinet | SHA1 | AES | |
| SHA224 | AES256 Cisco | sha224 needs to be configured as the entry.configuration.authprotocol value in NMIS value AND aes256c needs to be configured as the entry.configuration.privprotocol value in NMISvalue | |
| SHA256 | AES256 Cisco | sha256 needs to be configured as the entry.configuration.authprotocol value in NMIS value AND aes256c needs to be configured as the entry.configuration.privprotocol value in NMISvalue | |
| SHA384 | AES256 Cisco | sha384 needs to be configured as the entry.configuration.authprotocol value in NMIS value AND aes256c needs to be configured as the entry.configuration.privprotocol value in NMISvalue | |
| SHA512 | AES256 Cisco | sha512 needs to be configured as the entry.configuration.authprotocol value in NMIS value AND aes256c needs to be configured as the entry.configuration.privprotocol value in NMISvalue | |
| Palo Alto | SHA1 | AES128 | |
| SHA224 | AES128 | ||
| SHA256 | AES128 | ||
| SHA384 | AES128 | ||
| SHA224 | AES192 | aes192c needs aes192c needs to be configured as the entry.configuration.privprotocol value in NMIS | |
| SHA256 | AES192 | aes192c needs aes192c needs to be configured as the entry.configuration.privprotocol value in NMISvalue | |
| SHA256 | AES256 | aes256c needs to be configured as the entry.configuration.privprotocol value in NMIS | |
| SHA384 | AES192 | aes192c needs to be configured as the entry.configuration.privprotocol value in NMIS | |
| SHA384 | AES256 | aes256c needs aes256c needs to be configured as the entry.configuration.privprotocol value in NMISvalue | |
| NET-SNMP (Tested on v5.8 with Ubuntu 20.04) | SHA512 | AES128 | sha512 needs to be configured as the entry.configuration.authprotocol value |
You may notice that when configuring SNMPv3 on a (for example) Cisco IOS device that there is not an explicit AES192C/AES256C in the command, rather it is needed to be defined as AES 192 and/or AES 256.
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