Cisco problem configuring IP on interface

Sleipnir

Hi,

Just wondering if anyone could shed some light on this problem. When I go to configure an ip on an interface, there's no "address" setting?

SWITCH1>enable
SWITCH1#config
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
SWITCH1(config)#interface fastethernet0/48
SWITCH1(config-if)#ip ?
Interface IP configuration subcommands:
access-group Specify access control for packets
dhcp DHCP
igmp IGMP interface commands
igmp IGMP interface commands

SWITCH1(config-if)#

When I do the same on another switch

SWITCH1#config
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
SWITCH1(config)#interface fastethernet0/24
SWITCH1(config-if)#ip ?
Interface IP configuration subcommands:
access-group Specify access control for packets
accounting Enable IP accounting on this interface
address Set the IP address of an interface
broadcast-address Set the broadcast address of an interface
cef Cisco Express Fowarding interface commands
dhcp Configure DHCP parameters for this interface
directed-broadcast Enable forwarding of directed broadcasts
helper-address Specify a destination address for UDP broadcasts
irdp ICMP Router Discovery Protocol
load-sharing Style of load sharing
local-proxy-arp Enable local-proxy ARP
mask-reply Enable sending ICMP Mask Reply messages
mtu Set IP Maximum Transmission Unit
probe Enable HP Probe support
proxy-arp Enable proxy ARP
rarp-server Enable RARP server for static arp entries
redirects Enable sending ICMP Redirect messages
rip Router Information Protocol
route-cache Enable fast-switching cache for outgoing packets
security DDN IP Security Option
split-horizon Perform split horizon
summary-address Perform address summarization
unnumbered Enable IP processing without an explicit address
unreachables Enable sending ICMP Unreachable messages
verify Enable per packet validation
vrf VPN Routing/Forwarding parameters on the interface

SWITCH1(config-if)#

I've reset the switch etc and even when I do the initial setup and setup the management IP and save the config, it says
"invalid input detected" at the "address"

Can commands be removed/deleted from IOS?

NullZer0

Okay, how much Cisco experience do you have? - I don't want to sound mean (im no expert but you need to do a bit of reading about this).

What IOS you running?
Can you do a show version and paste here?

Eitherway the IP configuration options on Cisco gear has always remained pretty much the same (at the basic level at least).


I assume that you want the IP address of interface fastethernet0/48 ?

Here you go:

enable

show ip int fa0/48

If I misunderestood you question please elaborate a little more.

Cheers,

iRock

NullZer0

If you want to configure an IP address on that interface (for example 192.168.1.10/24) you would do this:

enable

config t

int fa0/48

ip address 192.168.1.10 255.255.255.0

no shut

exit

wr

I sleep with this next to my bed:
http://www.cisco.com/en/US/products/ps6350/prod_command_reference_list.html



iRock

Sleipnir

HI iRock, thanks for the response.

I am by no means an expert but I can find my way around the IOS, configure an IP etc. It's IOS 12.1.19.

What I mean is the "address" sub-command seems to be actually missing from the IP command e.g. when I enter the commands in the just same way as you suggested, here's what's returned;

SWITCH1>enable
Password:
SWITCH1#config t
Enter configuration commands, one per line. End with CNTL/Z.
SWITCH1(config)#int fa0/48
SWITCH1(config-if)#ip address 192.168.1.253 255.255.255.0
^
% Invalid input detected at '^' marker.

(The marker actually appears under "address")
If I use the help command after "IP" it only returns the following subcommands.

SWITCH1(config-if)#
SWITCH1(config-if)#ip ?
Interface IP configuration subcommands:
access-group Specify access control for packets
dhcp DHCP
igmp IGMP interface commands
igmp IGMP interface commands

Am I doing something stupid? Usually when something odd like this happens, it's because I'm doing something stupid.

NullZer0

Thats weird... at least for me (but then again I've only worked with 12.3 up!

I'd do a show run and analyze it. Do a show ip int bri and see what IP addresses are assigned if any.

Try doing a show IP route... just incase its corrupt IOS.

Other than that... I'd try the Cisco learning network to post... alot of CCIE's over there that may be more familiar with your IOS version.

https://cisco.hosted.jivesoftware.com/main-threads.jspa


HTH,

iRock

rmacm

Depending on the model of the switch and the IOS you have there can be differences in the command sets e.g. on a 2960 I get the same thing when I go to configure an interface.

But if I do something like the below I do have access to the ip address command.

Switch>enable
Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#interface vlan 1
Switch(config-if)#ip ?
  address  Set the IP address of an interface
Switch(config-if)#ip 

I tested this with a simulator that was running IOS 12.2....might have a 12.3 image somewhere but I'm too hungover to look now.

Sleipnir

I have another 3560 with the same image on it and I can configure IP's on the interface on it! Same again on a 3550.
This is driving me mental.

NullZer0

Corrupt IOS? - Unlikely... maybe a stupid suggestion.

Can you delete the flash and load the IOS again from TFTP?

NullZer0

I want to know what the problem is now... if this still isn't working later, post back and I'll load the IOS on some of my gear.

Sleipnir

Hi IRock, had a couple of Chimay blue and i can't face that switch now.

(Oh, there you are switch. How long have to been standing there. Me? Nothing. Just....on boards. Please don't look at me like that. Please......I can....still...feel THE BURNINGS!!!!!

Corrupt IOS, well maybe but if I go to configure the VLAN1 interface, I do have the option to set an IP address, but still not on the physical interfaces. So, were my interfaces not in VLAN1? Nope, they're in there alright.
Deleted vlan.dat off the flash anyway, recreated VLAN info (which re-writes the file), no joy.
I just can't figure it but I still think it's some simple settings. Something that's turned on...or isn't.

NullZer0

Sleipnir wrote: »

Corrupt IOS, well maybe but if I go to configure the VLAN1 interface, I do have the option to set an IP address, but still not on the physical interfaces. So, were my interfaces not in VLAN1? Nope, they're in there alright.
Deleted vlan.dat off the flash anyway, recreated VLAN info (which re-writes the file), no joy.

I would have said delete the vlan.dat next ..... according to the book thats what you should do :eek:

Anyway, can you load that IOS with the same config in Dynamips? I know its not "identical" but do you have the same problem?

Highly unlikely its corrupt, if it was corrupt you'd be having plain stupid issues with it - my imagination runs away with me sometimes.

Sleipnir

HI iRock, thanks for the suggestion. I think I'll do that next and see what it shows.

Cheers.

NullZer0

Sleipnir wrote: »

HI iRock, thanks for the suggestion. I think I'll do that next and see what it shows.

Cheers.

I need to wake up... this is a switch. you cant do that in dynamips

Sleipnir

Simple, therefore, as I said before, I was doing something stupid i.e. "no switchport" Layer2..Layer3...:o

I ain't kidding when I say that this has affected my relationship with my girlfriend.
"I'm reading a book cos you're still dicking around with that ****ing doohickey. Nevermind the noise it makes........"
I have my eye on a fanless HP Procurve now but I'll keep the Cisco cos I'm getting to like it.

I won't get into the problems I had with DHCP due to the fact that I need a wireless DHCP on the same subnet as well but I've learned more about IOS in the last month than in the last 10 years.
Now all I need is that 20m satellite cable and I can get my ethernet-wired house on the net!

Guys, can't overestimate the help you've given me. Thank you:)

NullZer0

I've had some serious torture over

"switchport trunk nonegotiate"

and other L2 stuff like that - I know the feeling!
It cracks me up!