Where is this coming from?
xenodamus
Member Posts: 758
in CCNA & CCENT
I'm playing with one of the extra switches from the closet here at work. I just erased the startup-config to use it for some practice and after doing so I'm getting TFTP errors periodically on my screen:
%Error opening tftp://10.147.90.2/ciscortr.cfg (Timed out)
I'm assuming its got a line somewhere telling it to load a config from a server on our network that doesn't exist anymore. Where is this coming from, though, and how do I get rid of it?
%Error opening tftp://10.147.90.2/ciscortr.cfg (Timed out)
I'm assuming its got a line somewhere telling it to load a config from a server on our network that doesn't exist anymore. Where is this coming from, though, and how do I get rid of it?
CISSP | CCNA:R&S/Security | MCSA 2003 | A+ S+ | VCP6-DTM | CCA-V CCP-V
Comments
-
Bl8ckr0uter Inactive Imported Users Posts: 5,031 ■■■■■■■■□□I'm playing with one of the extra switches from the closet here at work. I just erased the startup-config to use it for some practice and after doing so I'm getting TFTP errors periodically on my screen:
%Error opening tftp://10.147.90.2/ciscortr.cfg (Timed out)
I'm assuming its got a line somewhere telling it to load a config from a server on our network that doesn't exist anymore. Where is this coming from, though, and how do I get rid of it?
Use the no service config command to kill that. I believe that is all you need to do (along with a copy run start) -
xenodamus Member Posts: 758Aha...much thanks. That seems to have stopped it. I didn't get that message on the last switch I wiped out, though. What exactly is causing it?CISSP | CCNA:R&S/Security | MCSA 2003 | A+ S+ | VCP6-DTM | CCA-V CCP-V
-
Bl8ckr0uter Inactive Imported Users Posts: 5,031 ■■■■■■■■□□Aha...much thanks. That seems to have stopped it. I didn't get that message on the last switch I wiped out, though. What exactly is causing it?
Basically the device tries to go out and grap the config from a TFTP server on your network.
Cisco says it better
"%Error opening tftp://255.255.255.255/network config" Error Message Prevention - Cisco Systems -
CiskHo Member Posts: 188Aha...much thanks. That seems to have stopped it. I didn't get that message on the last switch I wiped out, though. What exactly is causing it?My Lab Gear:
2811(+SW/POE/ABGwifi/DOCSIS) - 3560G-24-EI - 3550-12G - 3550POE - (2) 2950G-24 - 7206VXR - 2651XM - (2) 2611XM - 1760 - (2) CP-7940G - ESXi Server
Just Finished: RHCT (1/8/11) and CCNA:S (Fall 2010)
Prepping For: VCP and CCNP SWITCH, ROUTE, TSHOOT -
Bl8ckr0uter Inactive Imported Users Posts: 5,031 ■■■■■■■■□□Could it be due to the config register being set to load a file from tftp?
I am curious to. Can you post your running config? -
CiskHo Member Posts: 188Run "sh vers" and make note of the last line displayed for the config reg info. Not sure where else that could be coming from if the config in flash had really been deleted.My Lab Gear:
2811(+SW/POE/ABGwifi/DOCSIS) - 3560G-24-EI - 3550-12G - 3550POE - (2) 2950G-24 - 7206VXR - 2651XM - (2) 2611XM - 1760 - (2) CP-7940G - ESXi Server
Just Finished: RHCT (1/8/11) and CCNA:S (Fall 2010)
Prepping For: VCP and CCNP SWITCH, ROUTE, TSHOOT -
Bl8ckr0uter Inactive Imported Users Posts: 5,031 ■■■■■■■■□□Run "sh vers" and make note of the last line displayed for the config reg info. Not sure where else that could be coming from if the config in flash had really been deleted.
This happened to me as well and I know my flash was fine. I just recall that service became activate somehow but I can't remember how. -
xenodamus Member Posts: 758That's probably it. Config register is 0xF. I've used a boot statement before, but how do you look at or delete the ones already in there?CISSP | CCNA:R&S/Security | MCSA 2003 | A+ S+ | VCP6-DTM | CCA-V CCP-V
-
CiskHo Member Posts: 188That's probably it. Config register is 0xF. I've used a boot statement before, but how do you look at or delete the ones already in there?
Seems that you just need to change the config register back to the default.
"Refer to the documentation for your platform for the default configuration register value. For many newer platforms, the default is 0x2102, which causes the router to boot from Flash memory and the Break key to be ignored."
From priv exec run: "config-register 0x2102" (for a 2950 at least).My Lab Gear:
2811(+SW/POE/ABGwifi/DOCSIS) - 3560G-24-EI - 3550-12G - 3550POE - (2) 2950G-24 - 7206VXR - 2651XM - (2) 2611XM - 1760 - (2) CP-7940G - ESXi Server
Just Finished: RHCT (1/8/11) and CCNA:S (Fall 2010)
Prepping For: VCP and CCNP SWITCH, ROUTE, TSHOOT -
Dilbert65 Member Posts: 73 ■■□□□□□□□□It also depends on the router itself. None of mine did that until I bump up the IOS to 12 then my 26xx now always give that error after a
write erase/erase startup.
conf t
no service config
wr and then I have to do a reload and poof messages gone.