Extreme Networks ExtremeWare XOS 11.3, Manual

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Configuring DHCP/BOOTP Relay
ExtremeWare XOS 11.3 Concepts Guide
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IP Multinetting Examples
The following example configures a switch to have one multinetted segment (port 5:5) that contains
three subnets (192.168.34.0/24, 192.168.35.0/24, and 192.168.37.0/24).
configure default delete port 5:5
create vlan multinet
configure multinet ipaddress 192.168.34.1/24
configure multinet add secondary-ipaddress 192.168.35.1/24
configure multinet add secondary-ipaddress 192.168.37.1/24
configure multinet add port 5:5
enable ipforwarding
The following example configures a switch to have one multinetted segment (port 5:5) that contains
three subnets (192.168.34.0, 192.168.35.0, and 192.168.37.0). It also configures a second multinetted
segment consisting of two subnets (192.168.36.0 and 172.16.45.0). The second multinetted segment spans
three ports (1:8, 2:9, and 3:10). RIP is enabled on both multinetted segments.
configure default delete port 5:5
create vlan multinet
configure multinet ipaddress 192.168.34.1
configure multinet add secondary-ipaddress 192.168.35.1
configure multinet add secondary-ipaddress 192.168.37.1
configure multinet add port 5:5
configure default delete port 1:8, 2:9, 3:10
create vlan multinet_2
configure multinet_2 ipaddress 192.168.36.1
configure multinet_2 add secondary-ipaddress 172.16.45.1
configure multinet_2 add port 1:8, 2:9, 3:10
configure rip add vlan multinet
configure rip add vlan multinet_2
enable rip
enable ipforwarding
Configuring DHCP/BOOTP Relay
After IP unicast routing has been configured, you can configure the switch to forward Dynamic Host
Configuration Protocol (DHCP) or BOOTP requests coming from clients on subnets being serviced by
the switch and going to hosts on different subnets. This feature can be used in various applications,
including DHCP services between Windows NT servers and clients running Windows 95. To configure
the relay function:
1 Configure VLANs and IP unicast routing.
2 Enable the DHCP or BOOTP relay function, using the following command:
enable bootprelay {vr <vrid>}
3 Configure the addresses to which DHCP or BOOTP requests should be directed, using the following
command:
configure bootprelay add <ip_address> {vr <vrid>}
To delete an entry, use the following command:
configure bootprelay delete [<ip_address> | all] {vr <vrid>}