networking:cisco:dhcp-relay

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networking:cisco:dhcp-relay [2026/02/02 11:30] – created ilyasanetworking:cisco:dhcp-relay [2026/02/02 12:03] (current) – ilyasa
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-==== DHCP Relay (Cisco) ====+{{indexmenu_n>021}} 
 +====== Cisco : DHCP Relay ======
  
 Dynamic Host Configuration Protocol (DHCP) relay adalah fitur penting pada router dan switch Cisco yang membantu mengelola dan mendistribusikan alamat IP di berbagai jaringan. Dalam jaringan dengan banyak subnet, DHCP relay memungkinkan perangkat pada satu subnet mendapatkan alamat IP dari server DHCP yang berada di subnet lain. Dynamic Host Configuration Protocol (DHCP) relay adalah fitur penting pada router dan switch Cisco yang membantu mengelola dan mendistribusikan alamat IP di berbagai jaringan. Dalam jaringan dengan banyak subnet, DHCP relay memungkinkan perangkat pada satu subnet mendapatkan alamat IP dari server DHCP yang berada di subnet lain.
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 === Router R1 === === Router R1 ===
- +<code console> 
-<code> hostname R1 ! interface GigabitEthernet0/0 ip address 192.168.1.1 255.255.255.0 ! interface GigabitEthernet0/1 ip address 10.0.0.1 255.255.255.0 ! </code>+hostname R1 
 +! 
 +interface GigabitEthernet0/0 
 + ip address 192.168.1.1 255.255.255.0 
 +! 
 +interface GigabitEthernet0/1 
 + ip address 10.0.0.1 255.255.255.0 
 +! 
 +</code>
  
 === DHCP Server === === DHCP Server ===
  
-<code> hostname DHCP_SERVER ! ip dhcp excluded-address 192.168.1.1 192.168.1.10 ! ip dhcp pool LAN1 network 192.168.1.0 255.255.255.0 default-router 192.168.1.1 dns-server 8.8.8.8 ! interface GigabitEthernet0/0 ip address 10.0.0.67 255.255.255.0 ! ip route 0.0.0.0 0.0.0.0 10.0.0.1 ! </code>+<code> 
 +hostname DHCP_SERVER 
 +! 
 +ip dhcp excluded-address 192.168.1.1 192.168.1.10 
 +! 
 +ip dhcp pool LAN1 
 + network 192.168.1.0 255.255.255.0 
 + default-router 192.168.1.1 
 + dns-server 8.8.8.8 
 +! 
 +interface GigabitEthernet0/0 
 + ip address 10.0.0.67 255.255.255.0 
 +! 
 +ip route 0.0.0.0 0.0.0.0 10.0.0.1 
 +! 
 +</code>
  
-=== Konfigurasi DHCP Relay ==== +=== Konfigurasi DHCP Relay Pada R1 ==== 
- +<code> 
-<code> R1(config)# interface GigabitEthernet0/0 R1(config-if)# ip helper-address 10.0.0.67 </code>+interface GigabitEthernet0/0 
 + ip helper-address 10.0.0.67 
 +</code>
  
 ==== Verify ==== ==== Verify ====
  
-=== VPC1 ===+=== VPCs===
  
-<code> VPC1> ip dhcp DORA IP 192.168.1.11/24 GW 192.168.1.1 </code>+<code> 
 +VPC1> ip dhcp 
 +DORA IP 192.168.1.11/24 GW 192.168.1.1 
 +</code>
  
-=== VPC2 === +<code> 
- +VPC2> ip dhcp 
-<code> VPC2> ip dhcp DORA IP 192.168.1.12/24 GW 192.168.1.1 </code>+DDORA IP 192.168.1.12/24 GW 192.168.1.1 
 +</code>
  
 === DHCP_SERVER === === DHCP_SERVER ===
  
-<code> DHCP_SERVER# show ip dhcp binding Bindings from all pools not associated with VRF: +<code class="console"> 
- +DHCP_SERVER#show ip dhcp binding 
-IP address Client-ID / Hardware address Lease expiration Type +Bindings from all pools not associated with VRF: 
-192.168.1.11 0100.5079.6668.66 Nov 05 2024 01:04 PM Automatic +IP address          Client-ID/         Lease expiration        Type 
-192.168.1.12 0100.5079.6668.67 Nov 05 2024 01:05 PM Automatic +            Hardware address/ 
 +            User name 
 +192.168.1.11        0100.5079.6668.66       Nov 05 2024 01:04 PM    Automatic 
 +192.168.1.12        0100.5079.6668.67       Nov 05 2024 01:05 PM    Automatic
 DHCP_SERVER# DHCP_SERVER#
 </code> </code>
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  • Last modified: 2026/02/02 11:30
  • by ilyasa