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DHCP

DHCP. Dynamic Host Configuration Protocol. DHCP. Dynamic Host Configuration Protocol mengkonfigurasi Pemberian IP ke jaringan secara dinamis Konfigurasi ke PC Ip address Mask Gateway DNS ( jika ada ) Konfigurasi DHCP Scope: jangkauan IP Address Gateway: IP Address.

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DHCP

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  1. DHCP Dynamic Host Configuration Protocol

  2. DHCP • Dynamic Host Configuration Protocol • mengkonfigurasiPemberian IP kejaringansecaradinamis • Konfigurasike PC • Ip address • Mask • Gateway • DNS (jikaada) • KonfigurasiDHCP • Scope: jangkauan IP Address • Gateway: IP Address

  3. DimanaPenempatanDHCP • Server • Windows 2000 server, • Windows 2003 server • Mikrotik • Linux, dll • Router • Cisco • Mikotikdll

  4. Cara Kerja

  5. How does it work? (1) (0) IP scope DHCP discover DHCP SERVER DHCP CLIENT MAC address DHCP offer DHCP DATABASE IP#, lease time (2) DHCP request DHCP CLIENT IP#, MAC address MAC address, IP#, lease time DHCP ack IP#, lease time

  6. KonfigurasiDHCP Server • Secara default, CISCO IOStelahmengaktifkanfiturDHCP server dan relay agent pada router. • Akantetapi, untukcontohkasusbila service tersebutbelumaktifmakaharusmemasukkanperintah "service dhcp" pada global configuration mode.

  7. Untuk Router • Tentukanalamat IP yang akandi-lease (diberikansecaradinamiskenetwork devices) danalamat IP apasaja yang tidakakandi-lease. • Alamat IP yang tidakakandi-lease • alamatinterface router yang berfungsisebagaidefaultgateway-nyanetwork devices dalamjaringankomputer • alamat server misalnya FTP server, • HTTP server dsb.

  8. Perintah Perintahuntukmeng-exclude-kanalamat IP adalah • "ipdhcp excluded-address x.x.x.x“ • ipdhcp excluded-address 192.168.20.81 • ipdhcp excluded-address 192.168.20.65 • ipdhcp excluded-address 192.168.20.1 • "ip dhcp pool xxx". (xxx = nama pool) Dilanjutkandenganmengisi network yang akandi-lease-kan: • " network x.x.x.xy.y.y.y" (x = alamat network, y = network mask) Dan diakhiridenganpemberian default-gateway padadhcp client: • "default-router x.x.x.x " (x = alamat IP interface router yang dijadikan default-gateway)

  9. Contoh ipdhcp pool PC0 • Memberinama pool dhcp network 192.168.20.0 255.255.255.192 • Menentukan ip untuk jaringan dari 192.168.20.1 s.d192.168.20.63 default-router 192.168.20.1 • alamat IP interface router yang dijadikan default-gateway

  10. Contoh R1#conf t R1#(config)host R1 R1#(config)int fa0/0 R1#(config-if)ip add 192.168.10.1 255.255.255.0 R1#(config-if)no shut R1#(config-if)exit R1#(config)ipdhcp pool IP10 R1#(dhcp-config)net 192.168.10.0 255.255.255.0 R1#(dhcp-config)default 192.168.10.1 R1#(dhcp-config)exit R1#(config)ipdhcpexc 192.168.10.1 192.168.10.10 R1#(config)exit R1#copy run start

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