43 lines
1.0 KiB
Bash
Executable File
43 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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# Sample udhcpc renew script
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RESOLV_CONF="/etc/udhcpc/resolv.conf"
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[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
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[ -n "$subnet" ] && NETMASK="netmask $subnet"
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ifconfig $interface $ip $BROADCAST $NETMASK
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if [ -n "$router" ]
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then
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echo "deleting routers"
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while route del default gw 0.0.0.0 dev $interface
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do :
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done
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metric=0
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for i in $router
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do
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if [ "$subnet" = "255.255.255.255" ]; then
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# special case for /32 subnets:
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# /32 instructs kernel to always use routing for all outgoing packets
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# (they can never be sent to local subnet - there is no local subnet for /32).
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# Used in datacenters, avoids the need for private ip-addresses between two hops.
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ip route add $i dev $interface
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fi
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route add default gw $i dev $interface metric $((metric++))
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done
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fi
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# Only replace resolv.conf if we have at least one DNS server
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if [ -n "$dns" ]
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then
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echo -n > $RESOLV_CONF
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[ -n "$domain" ] && echo domain $domain >> $RESOLV_CONF
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for i in $dns
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do
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echo adding dns $i
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echo nameserver $i >> $RESOLV_CONF
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done
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fi
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