Extreme Networks ExtremeSwitching VDX 6740 - Using the VDX 6740 T as a DHCP Server

Using the VDX 6740T as a DHCP server
You can connect the VDX 6740T to the management port on any Extreme Networks switch (DHCP client) and use the VDX 6740T as a
DHCP server to support DHCP Automatic Deployment (DAD), DHCP zero touch provisioning (ZTP), obtaining switch IP addresses, and
other services.
The following steps provide an example for connecting a VDX 6740T as a DHCP server to a VDX 6740 functioning as the DHCP client.
• Connect the VDX 6740T Ethernet management port to any of the VDX 6740T inband 10 GbE BaseT ports using a CAT5
cable.
• Connect the VDX 6740 Ethernet management port to any of the 10 GbE ports on the VDX 6740T using a CAT5 cable.
FIGURE 1 Connecting VDX 6740T as DHCP server to VDX 6740
1. Ethernet management port (RJ45)
2. CAT5 cable from management port to an VDX 6740T inband port
3. CAT5 cable from VDX 6740T inband port to VDX 6740 Ethernet
management port
4. VDX 6740T
5. VDX 6740
Following are general steps to congure the VDX 6740T as a DHCP server. For detailed procedures and Fabric OS commands, refer to
the Extreme Network OS Management Conguration Guide.
• Set up the DHCP pool address and other parameters in the dhcp.conf le.
• Congure a static IP address for the management port (DHCP must be disabled), then enable DHCP on the port.
• Congure the VDX 6740T inband ports that you are using for DHCP server connections into a VLAN so that the client
switches can obtain DHCP IP addresses from the server.
• Download the dhcpd.conf le to the VDX 6740T. A valid dhcpd.conf le must be copied into the device before enabling the
DHCP server.
Following are requirements and considerations for this feature:
• VDX 6740T is supported as the DHCP server and connected Extreme Networks switch is supported as a DHCP client.
• DHCP server must run as a standalone switch; it cannot be enabled when the switch is part of a VCS cluster.
• DHCPv6 is not supported.
• DHCP server can support up to 20 clients.
• DHCP server is not supported on inband ports without IP loopback and DHCP server support on the management port.
• DHCP conguration with a multiple subnet is not supported.
• DHCP only runs on the active CP. HA failover is supported.
Product features
ExtremeSwitching VDX 6740 Hardware Installation Guide
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