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ManualsBrandsPLANET Technology ManualsLAN SwitchesLayer 3 48-Port 10G SFP+ + 2-Port 40G QSFP+ + 4-Port 100G QSFP28 Managed Switch
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Configuring Switch
Enable DHCP snooping in VLAN 1 which connects private network A.
Switch_config#ip dhcp-relay snooping
Switch_config#ip dhcp-relay snooping vlan 1
Enable DHCP snooping in VLAN 2 which connects private network B.
Switch_config#ip dhcp-relay snooping
Switch_config#ip dhcp-relay snooping vlan 2
Sets the interface which connects the DHCP server to a DHCP-trusting interface.
Switch_config_g0/1#dhcp snooping trust
Configure option82 instance manually
interface GigaEthernet0/1
dhcp snooping information circuit-id hex 00-01-00-05
dhcp snooping information remote-id hex 00-e0-0f-13-1a-50
dhcp snooping information vendor-specific hex 00-00-0c-f8-0d-01-0b-78-69-61-6f-6d-69-
6e-37-31-31-34
dhcp snooping information append
dhcp snooping information append first-subop9-param hex 61-62-63-61-62-63
!
interface GigaEthernet0/2
dhcp snooping trust
arp inspection trust
ip-source trust
!
!
!
ip dhcp-relay snooping
ip dhcp-relay snooping vlan 1-100
ip arp inspection vlan 1