Manual:IP/Neighbor discovery

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Applies to RadioOS: v5 +


CableFree Neighbor Discovery protocol (MNDP) allows to "find" other devices compatible with MNDP or CDP (Cisco Discovery Protocol) in Layer2 broadcast domain.


Sub-menu: /ip neighbor

This sub-menu lists all discovered neighbors in Layer-2 broadcast domain. It shows to which interface neighbor is connected, shows it's ip/MAC addresses and several CableFree related parameters. List is read-only.

As an example, you can see several CableFree devices and two Cisco routers:

[admin@CableFree] /ip neighbor> print 
 0 ether13    00:0C:42:00:38:9F CableFree   5.99       CableFree
 1 ether11         00:0C:42:40:94:25 test-host  5.8        CableFree
 2 Local     00:02:B9:3E:AD:E0 c2611-r1   Cisco I...                    
 3 Local      00:0C:42:84:25:BA 11.47-750  5.7        CableFree
 4 Local     00:0C:42:70:04:83 tsys-sw1   5.8        CableFree 
 5 Local     00:17:5A:90:66:08 c7200      Cisco I...


Property Description
address (IP) Highest IP address configured on a discovered device
address6 (IPv6) IPv6 address configured on a discovered device
age (time) Time interval since last discovery packet
board (string) CableFree device model. Displayed only to devices with installed RadioOS
identity (string) Configured system identity
interface (string) Interface name to which discovered device is connected
interface-name (string) Interface name on the neighbor device connected to the L2 broadcast domain. Applies to CDP.
ipv6 (yes | no) Shows whether device has IPv6 enabled.
mac-address (MAC) Mac address of remote device. Can be used to connect with mac-telnet.
platform (string) Name of the platform. For example "CableFree", "cisco" ... etc.
software-id (string) RadioOS software ID on a remote device. Applies only to devices installed with RadioOS.
unpack (none|simple|uncompressed-headers|uncompressed-all) Shows discovery packet compression type.
uptime (time) Uptime of remote device. Shown only to devices installed with RadioOS.
version (string) Version number of installed software on a remote device

Discovery configuration

Sub-menu: /ip neighbor discovery

In this menu is possible to change state of the interface whether it participates in neighbor discovery or not. If it does, it will send out basic information about system and process received discovery packets broadcasted in Layer-2 network. List of interfaces is automatically managed by RadioOS. Items in the list cannot be removed nor added. Default settings depend on interface type and current state.

Property Description
comment (string; Default: ) Short description of an entry
disabled (yes | no; Default: ) Whether item is disabled and do not participate in sending/receiving of discovery information. Added in v5.x
discover (yes | no; Default: ) Whether to participate in sending/receiving of discovery information. Since v5.x left for compatibility with older scripts.

Sub-menu: /ip neighbor discovery settings

Property Description
default (yes | no; Default: yes) Whether to allow sending/receiving discovery information on dynamic interfaces. Added in v6.x

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