[Samanoske]

Hi,

Could somebody please help out me with a script. It should

1) Check if DHCP is up (not 169.xx.xx.xx), if not release and re-init the DHCP, if IP has changed ->2

2) Report IP to a FTP.server

well here is why ...

The problem with my ISP (Cable) is that from time to time (weekly) they shutdown a router or something so my DCHP connection is dropped and OS X is assigning an ip itself (169.xx.xx.xx). No Problem if I am around. But what if I am away ? Even-worse they changed afterwards my IP to something different ...

[Samanoske]

Ok I know how to renew the DHCP,

sudo ipconfig set en0 BOOTP
sudo ipconfig set en0 dhcp

but I have no idea how to compare the ip

[Samanoske]

Ok .. after a small fight with the csh shell, and I have to admit the Manuals on the net are very helpful - I succeeded

what do you think to my little script ...

#!/bin/csh

ipconfig getifaddr en0 > IP
set uno = `awk -F . '{print $1}' IP`
echo $uno" as first IP Numba"

if ( $uno == '192') then
echo "We Are Laned"
else if ( $uno == '169') then
echo "We don't have a DHCP Connection"
echo "tryin to re-establish"
while ( $uno == '169')
sudo ipconfig set en0 BOOTP
echo "tryin to reach DHCP Server in few sex"
sleep 3
sudo ipconfig set en0 DHCP
sleep 12
ipconfig getifaddr en0 > IP
set uno = `awk -F . '{print $1}' IP`
end
echo "We have a Connection back"
echo "Copying IP to FTP Server"
ncftpput -E -u <Login> -p <Password> <Ftp.Server> <ServerFolder:/IP/> <File:IP>
endif


ofcorse I get rid of the echos for the the final-cron-job-script but they helped to script it










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[melman101]

i know this is a little off-topic of unix, but why dont you use something like dyndns.org. Check it out

Mel

[Samanoske]

Originally posted by melman101:
i know this is a little off-topic of unix, but why dont you use something like dyndns.org. Check it out

Mel

Originally posted by Samanoske:
The problem with my ISP (Cable) is that from time to time (weekly) they shutdown a router or something so my DCHP connection is dropped and OS X is assigning an ip itself (169.xx.xx.xx).

Well if the connections is dropped and I have a selfassigned IP, I can not report any IP.