Coverting Lightweight AP to Autonomous using switch

[Jason Bassett]

Hello All, 

I need to convert a lightweight AP to an Autonomous AP using a switch between my PC and the AP.

I've placed both switch ports on the same vlan and of course changed my computers IP address to 10.0.0.2. However after entering recovery mode and attempting to reload the IOS via TFTP, I get a connection timeout error. The AP never even reaches the TFTP server running on my PC. 

Anyone have any advice or tips? Perhaps the vlan configuration isn't correct? 

Thanks for your time. 

- Jason

[Leo Laohoo]

I've placed both switch ports on the same vlan and of course changed my computers IP address to 10.0.0.2. However after entering recovery mode and attempting to reload the IOS via TFTP, I get a connection timeout error. The AP never even reaches the TFTP server running on my PC. 

Firewall? 

Console into the AP and repeat the process.  I want to see the entire process happening including the error message(s) generated.

[Jason Bassett]

Nope, no firewall at all. 

I seriously think it may be the vlan configuration. I did nothing special other than create the vlan, set the vlan to acquire an IP address via DHCP. And then add both switchports, one for my PC, and one for the AP, to the vlan. 

[Leo Laohoo]

%Error opening tftp://255.255.255.255/ap3g2-k9w7-tar.default (connection timed out)

The AP can't see the TFTP server.  

What is the subnet mask of the TFTP server?

You could try "hosting" the IOS in the switch.  Make sure to give the switch the right IP address.

[Jason Bassett]

Hmmm yeah I just tried pinging the AP from my PC and it's not able to reach it. 

The subnet mask of the TFTP server is 255.255.255.0, as well as AP. I've assigned the 10.0.0.2 IP address to my computer so I'm unsure how this isn't working... Both the AP and my PC are on the same vlan. I've assigned the vlan an IP address of 10.0.0.3, just so they're all on the same subnet. 

[Leo Laohoo]

The subnet mask of the TFTP server is 255.255.255.0,

Bingo!  

Change the subnet mask to 25.0.0.0.

[Jason Bassett]

Here is the full console process -- 

 
IOS Bootloader - Starting system.
flash is writable
FLASH CHIP:  Macronix Mirrorbit (00C2)
Xmodem file system is available.
flashfs[0]: 5 files, 3 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 31997952
flashfs[0]: Bytes used: 5191168
flashfs[0]: Bytes available: 26806784
flashfs[0]: flashfs fsck took 13 seconds.
Reading cookie from SEEPROM
Base Ethernet MAC address: e4:c7:22:cd:ac:90
Ethernet speed is 100 Mb - FULL Duplex
Mode button pressed.
Mode button held for at least 20 seconds.
process_config_recovery: set IP address and config to default 10.0.0.1
process_config_recovery: image recovery
image_recovery: Download default IOS tar image tftp://255.255.255.255/ap3g2-k9w7-tar.default
 
examining image...
DPAA Set for Independent Mode
DPAA_INIT = 0x0
 
%Error opening tftp://255.255.255.255/ap3g2-k9w7-tar.default (connection timed out)ap: 
ap: 
ap: