Slarp

alxx

sh ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.3 YES DHCP up up
Serial0/0 1.10.10.2 YES SLARP up up
Serial0/1 unassigned YES unset administratively down down
Serial1/0 unassigned YES unset administratively down down
Serial1/1 unassigned YES unset administratively down down

Method SLARP ???

So its

Serial Line Address Resolution Protocol

I haven't seen it mentioned in any of the CCNA or other books I have and haven't come across it before.

So it picks an ip based on the /30 subnet from the ip you have set on the other end of the serial connection
and only if the router doesn't have a valid config file. So its like dhcp for serial ?

https://learningnetwork.cisco.com/thread/12801

https://en.wikipedia.org/wiki/Cisco_HDLC#SLARP_address_request.E2.80.93response_frame_structure

https://learningnetwork.cisco.com/thread/9428

Serial Line Address Resolution Protocol (SLARP) | David Sudjiman

Configuring Address Resolution Protocol Options* [Networking Software (IOS & NX-OS)] - Cisco Systems

Is it ever used in the realworld ?

Roguetadhg

That's just an awesome name though.