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Figure 7-7: L3 Relay Network Diagram
This example assumes that multiple VLAN routing interfaces have been created and configured with IP
addresses.
To configure the switch:
1.
Enable IP helper on the switch.
(QCT) #config
(QCT) (Config)#ip helper enable
2.
Relay DHCP packets received on VLAN 10 to 192.168.40.35
(QCT) (Config)#interface vlan 10
(QCT) (if-vlan10)#ip helper-address 192.168.40.35 dhcp
3.
Relay DNS packets received on VLAN 10 to 192.168.40.43
(QCT) (if-vlan10)#ip helper-address 192.168.40.35 domain
(QCT) (if-vlan10)#exit
4.
Relay SNMP traps (port 162) received on VLAN 20 to 192.168.23.1
(QCT) (Config)#interface vlan 20
(QCT) (if-vlan20)#ip helper-address 192.168.23.1 162
5.
The clients on VLAN 20 have statically-configured network information, so the switch is configured to
drop
DHCP packets received on VLAN 20
Summary of Contents for QuantaMesh QNOS5
Page 1: ...QuantaMesh Ethernet Switch Configuration Guide QNOS5 NOS Platform ...
Page 209: ...209 Table 7 8 IPv6 Neighbor Discovery Settings ...
Page 226: ...226 Table 8 2 L3 Multicast Defaults ...
Page 254: ...254 Appendix A Term and Acronyms Table 9 5 Terms and Acronyms ...