<show ip int brief> command

[ekwokonline]

the <show ip int brief> command I always use, but I dont know what does the column "OK?" and "Method" mean?

I can't find the related information in cisco.com

Router>sh ip int brie

Interface IP-Address OK? Method Status Protocol

Dialer0 203.1.231.62 YES BOOTP up up

Ethernet0 192.168.1.201 YES NVRAM up up

Ethernet1 unassigned YES manual up up

[s.conway · Accepted solution]

I think the 'OK' column gives the condition of the interface. The 'method' column shows how that interface was configured. For example, NVRAM would be from when the router was powered up and the interface was configured from the config file that was stored in NVRAM.

The method field has the following possible

values:

•RARP or SLARP—Reverse Address Resolution Protocol (RARP) or SLARP request

•BOOTP—Bootstrap protocol

•TFTP—Configuration file obtained from Trivial File Transfer Protocol (TFTP) server

•manual—Manually changed by CLI command

•NVRAM—Configuration file in nonvolatile RAM (NVRAM)

•IPCP—ip address negotiated command

•DHCP—ip address dhcp command

•unassigned—No IP address

•unset—Unset

•other—Unknown

[ekwokonline]

Thanks,

your information is very useful.

Where do you find these information? is it from cisco.com? If you don't mind can you tell me the information source so that I can study more and deeper about it.

For the "OK?" I still don't understand the condition you mention is the physical condition or the logical configuration condition. It is OK even though the interface is down in both line protocol and status

Interface IP-Address OK? Method Status Protocol

Ethernet0 10.0.0.1 YES manual administratively down down

[s.conway · Accepted solution]

Most info I get from this link

http://www.cisco.com/univercd/home/home.htm

This answer specifically is here

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipras_r/1rfipadr.htm#wp1020814

The OK column is a bit of a guess. I know it always shows OK when the interface is up/up, down/down or admin down.

sh ip int brie

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 10.160.16.97 YES NVRAM up up

Hssi4/0 unassigned YES NVRAM administratively down down

Hssi4/1 unassigned YES NVRAM up up

Hssi4/1.2 192.168.25.37 YES NVRAM up up

Hssi4/1.4 192.168.25.73 YES NVRAM up up

Hssi4/1.5 192.168.25.133 YES NVRAM up up

Hssi4/1.6 192.168.25.185 YES NVRAM up up

Hssi4/1.7 10.164.16.22 YES NVRAM up up

Hssi4/1.9 192.168.25.34 YES manual up up

Hssi4/1.10 10.164.16.1 YES NVRAM up up

FastEthernet5/0 unassigned YES NVRAM administratively down down

Loopback0 10.159.254.243 YES NVRAM up up

I think it is a physical status of the interface, not just weather the interface is up or not.

[ekwokonline]

Many thanks.

really appriciate all you've done.