TDC 375 Winter 2002 John Kristoff DePaul University jtk depaul edu 1 312 362 5878 DePaul University Chicago IL 60604 John Kristoff 1 Dynamic Host Configuration Protocol DHCP TDC 375 Winter 2002 DHCP John Kristoff DePaul University ICMP Information Request BOOTP RARP Bootstrapping diskless workstations Overview 2 TDC 375 Winter 2002 John Kristoff DePaul University And a DNS server or two would be nice Subnet mask A default router IP address Station needs minimally 3 Station only knows its hardware address info Station needs to know its own IP address Host loads boot image and or config from net Bootstrapping and configuration Old methods TDC 375 Winter 2002 John Kristoff DePaul University What is my IP config and maybe loader file BOOTP What is my IP subnet default router etc ICMP info mask router queries What is IP for h w address xx xx xx xx xx xx RARP 4 TDC 375 Winter 2002 John Kristoff DePaul University 5 BOOTP leased IPs and other parametersf Enter DHCP TDC 375 Winter 2002 Server DHCPACK DHCPOFFER John Kristoff DePaul University DHCPRELEASE DHCPREQUEST DHCPDISCOVER Client Typical discovery process 6 TDC 375 Winter 2002 John Kristoff DePaul University Security authentication issues DHCP versus BOOTP versus RARP UDP protocol ports 67 and 68 DHCP parameters Leases Notes 7
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