[NBLUG/talk] SIOCSUFFLAGS: Device or resource busy

[Jeff Hemminger]

ME wrote:

>Is this a PCMCIA NIC?
>
[jeff]: no this is a pc nic, more specifically a trendnet TE100-pciwn

>
>You can get this error when trying to down an interface if an application
>still has open connections.
>
>You can sometimes get an error like this if the interface is already up
>
>ifup and ifdown are applications / scripts that do many of the tedious
>network things for you. Try doing it all by hand:
># ifconfig eth0 down
>(now see if it is there:)
># ifconfig | grep eth0
>(if you do not see it, that is good news so far.)
>
[jeff]: yes it's good to here, I brought down eth0 and I couldn't see 
anything w/ ifconfig | grep eth0

># ifconfig eth0 up
>(now see if it is in the list)
>
[jeff]: I get SIOCSIFFLAGS: Device or resource busy when I type this

># ifconfig | grep eth0
>(if you see it, then good news)
>
[jeff]: nothing here
[jeff]: I'm using DHCP

>#### If you use DHCP to get network information:
># dhclient eth0
>(or if you use pump, then)
># pump -i eth0
>(or if you use another dhcp client then try it)
>
[jeff]: neither of these commands are recognized. I looked through 
/usr/bin quickly, but I didn't see anything similar.

>#### Now, if you used staticly assigned IP or DHCP assigned IP, see the
>results:
># ifconfig eth0
>(Do you see the IP address and Subnet mask included in the list?)
># route -N
>
[jeff]: The only thing I see from route -N is this:
Destination            Gateway            Genmask         Flags   
Metric   Ref      Use Iface
127.0.0.0               0.0.0.0             255.0.0.0         U         
0            0         0     lo

>
>Perhaps if we see where it is failing, we can make more suggestions.
>
[jeff]: let me know if I can provide more info. I really appreciate the 
help! Haven't seen this one before.

Jeff

>
>-ME
>
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