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# more /etc/dhcp/dhclient-exit-hooks
#!/bin/bash

FIRST=`/sbin/ifconfig eth0|grep -i global|cut -d ":" -f2,3,4,5`
SECOND=`/sbin/ifconfig eth0|grep -i global|cut -d ":" -f6,7,8,9|cut -d "/" -f1`
IPV6=$FIRST:a$SECOND

for SUFFIX in `echo {0..9}`;do ifconfig eth0 inet6 add $IPV6$SUFFIX/64 > /dev/null 2>&1; done;
for SUFFIX in `echo {a..f}`;do ifconfig eth0 inet6 add $IPV6$SUFFIX/64 > /dev/null 2>&1; done

exit 0