2 # Sample udhcpc renew script
4 RESOLV_CONF="/etc/udhcpc/resolv.conf"
6 [ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
7 [ -n "$subnet" ] && NETMASK="netmask $subnet"
9 /sbin/ifconfig $interface $ip $BROADCAST $NETMASK
13 echo "deleting routers"
14 while /sbin/route del default gw 0.0.0.0 dev $interface
21 if [ "$subnet" = "255.255.255.255" ]; then
22 # special case for /32 subnets:
23 # /32 instructs kernel to always use routing for all outgoing packets
24 # (they can never be sent to local subnet - there is no local subnet for /32).
25 # Used in datacenters, avoids the need for private ip-addresses between two hops.
26 /sbin/ip route add $i dev $interface
28 /sbin/route add default gw $i dev $interface metric $((metric++))
32 # Only replace resolv.conf if we have at least one DNS server
35 echo -n > $RESOLV_CONF
36 [ -n "$domain" ] && echo domain $domain >> $RESOLV_CONF
40 echo nameserver $i >> $RESOLV_CONF