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I am writing some scripts on Kamikaze, but there is not 'ipcalc' on the busybox.
Could someone help me to work out network number given IP address
and netmask ( in the notation as show in /etc/config/network ) ?
This is what I will do if there is 'ipcalc' :-
$ ipcalc -n 192.168.128.115 255.255.192.0
NETWORK=192.168.128.0
How to do it in the absence of 'ipcalc' ?
;-)
OpenWrt Kamikaze uses a seperate ipcalc shell script (/bin/ipcalc.sh). Here is a example with UCI. The shell script below reads the LAN IP address and the netmask from /etc/config/network, calculates and finally prints the network number.
/ipcalc-test.sh
#!/bin/sh
. /etc/functions.sh
config_load "network"
local section="lan"
config_get "ipaddr" "$section" "ipaddr"
config_get "netmask" "$section" "netmask"
eval "$(/bin/ipcalc.sh $ipaddr $netmask)"
echo "Network: $NETWORK"Test it
root@OpenWrt:/# ./ipcalc-test.sh
Network: 192.168.178.0
root@OpenWrt:/#My configuration (uci show network.lan):
network.lan=interface
network.lan.type=bridge
network.lan.ifname=eth0.0
network.lan.proto=static
network.lan.ipaddr=192.168.178.3
network.lan.netmask=255.255.255.0
network.lan.dns=192.168.178.1
network.lan.gateway=192.168.178.1Have fun 
(Last edited by forum2006 on 25 Sep 2007, 17:03)
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