write a program to the given ip is valid private address or not(192.168.1.1)?
Answer Posted / amarnath
#10.0.0.0 through 10.255.255.255
#169.254.0.0 through 169.254.255.255
#172.16.0.0 through 172.31.255.255
#192.168.0.0 through 192.168.255.255
set ip 192.168.10.1
if {[regexp {^(10|169|172|192).([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5]).([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5]).([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])} $ip match 1st 2nd 3rd 4th]} {
puts $match
puts "$1st
$2nd
$3rd
$4th" }
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