H3C Router Connecting to Core Switch

H3C routers and core switches can be configured by setting management IPs, creating VLANs, configuring interfaces, enabling DHCP, and establishing routing for inter-department and internet connectivity. Step 1: Access and Management SetupConnect to the H3C device via console, SSH, or Telnet using a terminal emulation program. Configure a management VLAN (avoid using VLAN 1) and assign an IP address to the management interface.

For switches with a management Ethernet interface, use the M-GigabitEthernet 0/0/0 IP; otherwise, assign the IP to the VLAN interface.

Enable Telnet or SS

H access and create a local user with administrative privileges using the local-user and class manage commands. Step 2: VLAN and Interface ConfigurationCreate VLANs for different departments or network segments: CodeCopy vlan 10[Switch-vlan10] description DepartmentA[Switch-vlan10] quit Assign IP addresses to VLAN interfaces on the core switch to allow inter-VLAN communication: CodeCopy interface Vlan-interface 10[CoreSwitch-Vlan-interface10] ip address 192. 168.

10. 1 255. 255.

255. 0[CoreSwitch-Vlan-interface10] quit Configure access ports on edge switches and trunk or hybrid ports on uplinks to the core switch, allowing the necessary VLANs to pass. Step 3: Link Aggregation and TrunkingAggregate multiple physical links between access and core switches for higher bandwidth and redundancy: CodeCopy interface Eth-Trunk 1[Switch-Eth-Trunk1] mode lacp[Switch-Eth-Trunk1] trunkport GigabitEthernet 1/0/1[Switch-Eth-Trunk1] trunkport GigabitEthernet 1/0/2 Set trunk ports to allow all required VLANs and configure the default VLAN if needed.

Step 4: DHCP Configuration on Core SwitchConfigure DHCP pools for each department: CodeCopy dhcp server ip-pool pool1[CoreSwitch-dhcp-pool1] network 192. 168. 10.

0 255. 255. 255.

0[CoreSwitch-dhcp-pool1] gateway-list 192. 168. 10.

1[CoreSwitch-dhcp-pool1] quit Repeat for additional VLANs or departments. Step 5: Routing ConfigurationConfigure a default route on the core switch pointing to the egress router for internet access: CodeCopy ip route-static 0. 0.

0. 0 0. 0.

0. 0 192. 168.

100. 1 Ensure VLAN interfaces for each department are properly routed to allow inter-department communication. Step 6: Optional FeaturesEnable STP to prevent loops and configure priorities if needed: CodeCopy stp enable stp priority 24576 Configure 802.

1X authentication for port security and add local access users for network management. Step 7: Save ConfigurationSave the configuration to ensure persistence after reboot: CodeCopy saveAre you sure to save the configuration? (y/n),: y By following these steps, you can establish a stable H3C network with proper VLAN segmentation, DHCP services, inter-VLAN routing, and secure management access, suitable for a small to medium-sized campus network.