HP ProCurve Management And Configuration Manual page 185

N o t e s
ProCurve(config)# interface loopback 1
ProCurve (lo1)# ip address 10.1.1.1
Figure 8-6. Example of a Loopback Interface Configuration
■ You can configure a loopback interface only from the CLI; you cannot
configure a loopback interface from the web management or Menu inter­
face.
Loopback interfaces share the same IP address space with VLAN config­
■
urations. The maximum number of IP addresses supported on a switch is
2048, which includes all IP addresses configured for both VLANs and
loopback interfaces (except for the default loopback IP address
127.0.0.1).
■ Each IP address that you configure on a loopback interface must be
unique in the switch. This means that the address cannot be used by a
VLAN interface or another loopback interface.
For example, if you configure a VLAN with IP address 172.16.100.8/24, you
cannot configure a loopback interface with IP address 172.16.100.8. In the
same way, if you configure a loopback interface (lo1) with IP address
172.16.101.8, you cannot configure another loopback interface (lo2) with
IP address 172.16.101.8.
■ You can configure multiple IP addresses on a loopback interface (lo0 to
lo7). Up to thirty-two IP addresses are supported on a loopback interface.
The following example shows valid IP address configurations on two
loopback interfaces.
ProCurve(config)# interface loopback 0
ProCurve (lo0)# ip address 172.16.101.8
ProCurve (lo0)# ip address 172.16.101.9
ProCurve (lo0)# exit
ProCurve (config)# interface loopback 1
ProCurve (lo1)# ip address 172.16.102.1
ProCurve (lo1)# ip address 172.16.102.2
Configuring IP Addressing
Loopback Interfaces
8-17