Hayes Microcomputer Products ADSL Ethernet Modem - Manual (Page 85)

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NETDEV_0="eth0"
IFCONFIG_0="dhcpclient"
Reboot with this command: /sbin/shutdown -r now.
For Debian
Add this line to the file /etc/network/interfaces: iface eth0 inet
dhcp.
Reboot with this command: /sbin/shutdown -r now.
Now return to Establishing Communication on page 7.