D-Link xStack DGS-3610 Series User Manual

Chapter 19 IP Address and Service Configuration DGS-3610 Series Configuration Guide
19-4
Note
Theoretically, bits of subnet masks can be any bits of the host addresses.
Our product only supports continuous subnet masks from left to right
which is started from network portion.
For the feature configuration related to the interface IP address, refer to the following tasks
list. These tasks are taken as optional configuration and you can determine whether they are
need to be configured according to the practical requirement.
 Configuring Multiple IP Addresses to the Interfaces
19.1.2.1.1 Configuring Multiple IP Addresses to the Interfaces
Our product supports multiple IP addresses configured on one interface. One of them is the
primary IP address and others are secondary addresses. The secondary IP addresses can
be theoretically configured to be unlimited, which can be configured freely. But between the
secondary IP addresses and the primary IP, among the secondary IP addresses, the
addresses must located in different networks. Secondary IP address is used frequently
during the period of network building. For the following cases, it is considered that secondary
IP address could be used.
 There might not be enough host addresses for a network. For example, a generally LAN
needs a Category C network, which allows up to 254 hosts. However, when there are
more than 254 hosts in the LAN, another category C network address is necessary
since one category C network is not enough. Therefore, the router should be connected
to two networks and multiple IP addresses should be configured.
 Many older networks were built using Level 2 bridges, and were not subnetted. The use
of secondary addresses can make it easier to upgrade the network to a router-based
network of IP layer. One IP address is configured in the equipment for each subnet.
 Two subnets of a single network might be separated by another network. You can
create a subnets for the isolated network. By configuring secondary IP addresses, the
separated subnets can be re-connected. Note that a subnet cannot be appeared on two
or more than two interfaces in the router.
Note
Before configuring secondary IP addresses, you need to confirm that the
primary IP address has been configured. If the secondary IP address is
configured for a router in the network, the secondary IP address for the
same network must be configured for other routers. If other devices have
not been configured an IP address yet, you can configure the primary IP
address for them.
To configure the secondary IP addresses to a network interface, use the following command
in interface configuration mode:
Command
Function
DGS-3610(config-if)# ip address ip-address
mask
secondary
Set secondary IP addresses to an interface.

D-Link xStack DGS-3610 Series Specifications

General

Brand	D-Link
Model	xStack DGS-3610 Series
Category	Switch
Language	English