RE: Network interfaces rename

Hi Andreas,
 
On Tuesday, November 03, 2015 11:39 PM, Andreas Haralambopoulos wrote:
> Is it possible to change the network interfaces names ( or to create
> ‘aliases’) ?
> 
> for example
> 
> snmpwalk -v2c -c password 127.0.0.1
> 
> 
> replacing  these names
> 
> IF-MIB::ifDescr.6 = STRING: vlan10
> IF-MIB::ifDescr.7 = STRING: vlan172
> IF-MIB::ifDescr.8 = STRING: vlan11
> IF-MIB::ifDescr.9 = STRING: vlan12
> 
> to
> 
> IF-MIB::ifDescr.6 = STRING: Internet
> IF-MIB::ifDescr.7 = STRING: dmz
> IF-MIB::ifDescr.8 = STRING: guest_lan
> IF-MIB::ifDescr.9 = STRING: wifi

Not exactly what you're suggesting above but I use the agent's "override" configuration capability to override the entry's ifAlias value. See this thread for details/caveats: https://sourceforge.net/p/net-snmp/mailman/net-snmp-users/?viewmonth=201504&viewday=14.

The equivalent in your situation would be something like:
override IF-MIB::ifAlias.6 octet_str "Internet"
override IF-MIB::ifAlias.7 octet_str "dmz"
override IF-MIB::ifAlias.8 octet_str  "guest_lan"
override IF-MIB::ifAlias.9 octet_str "wifi"

I find this a nice alternative because it leaves the read-only values as-is (ifDescr and ifName) while also allowing you specify a user-defined alias for the interface. See also this post for a good summary of the inter-relationship between ifDescr, ifName, and ifAlias:
http://www.irobert.info/display/IRINFO/Understanding+ifDescr,+ifName+and+ifAlias.

Regards,
-David
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