Use rsync to sync Casper distribution points and restrict packages to specific subnets.

selective-caspershare-sync.sh

#!/bin/bash
##########################################
### Script to rsync Caspershare points 
### Name site based packages SB-###-Package name
### All pacakges with SB-* will be ignored and SB-<matching octet>-filename will be synced 
### Author B. Schmidt 12-31-2012      
##########################################

# Get IP Subnet
ipsub=$(ifconfig | grep 10. | grep inet | cut -f2 -d " " | cut -f2 -d "." | head -1)

# Get Caspershare location if it is not on the boot drive.
cd /Volumes/*/Caspershare
cd ..
csloc=$(pwd)

# Randomize timing so cron/launchd can be the same time. 
sleep $(echo $RANDOM*10%25200 | bc)

# Do the rsync exluding other site based packgaes but included own subnet
/usr/bin/rsync -avx --delete-before --include=*SB-$ipsub* --exclude=*Temporary* --exclude=SB-* --exclude=*Deleted* -e ssh sync@server.com:/Volumes/Data/CasperShare "$csloc"

exit 0