Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 617
53-1002269-02
Configuring IP parameters – Layer 2 Switches
21
Devices support both classical IP network masks (Class A, B, and C subnet masks, and so on) and
Classless Interdomain Routing (CIDR) network prefix masks:
• To enter a classical network mask, enter the mask in IP address format. For example, enter
“209.157.22.99 255.255.255.0” for an IP address with a Class-C subnet mask.
• To enter a prefix network mask, enter a forward slash ( / ) and the number of bits in the mask
immediately after the IP address. For example, enter “209.157.22.99/24” for an IP address
that has a network mask with 24 significant bits (ones).
By default, the CLI displays network masks in classical IP address format (example:
255.255.255.0). You can change the display to prefix format. Refer to “Changing the network
mask display to prefix format” on page 623.
To assign an IP address to a Layer 2 Switch, enter a command such as the following at the global
CONFIG level.
PowerConnect(config)# ip address 192.45.6.110 255.255.255.0
Syntax: ip address <ip-addr> <ip-mask>
or
Syntax: ip address <ip-addr>/<mask-bits>
You also can enter the IP address and mask in CIDR format, as follows.
PowerConnect(config)# ip address 192.45.6.1/24
To specify the Layer 2 Switch default gateway, enter a command such as the
following.
PowerConnect(config)# ip default-gateway 192.45.6.1 255.255.255.0
ip default-gateway <ip-addr>
or
ip default-gateway <ip-addr>/<mask-bits>
NOTE
When configuring an IP address on a Layer 2 switch that has multiple VLANs, make sure the
configuration includes a designated management VLAN that identifies the VLAN to which the global
IP address belongs. Refer to “Designated VLAN for Telnet management sessions to a Layer 2
Switch” on page 863.
Configuring Domain Name Server (DNS) resolver
The Domain Name Server (DNS) resolver feature lets you use a host name to perform Telnet, ping,
and traceroute commands. You can also define a DNS domain on a Layer 2 Switch or Layer 3
Switch and thereby recognize all hosts within that domain. After you define a domain name, the
Layer 2 Switch or Layer 3 Switch automatically appends the appropriate domain to the host and
forwards it to the domain name server.
For example, if the domain “newyork.com” is defined on a Layer 2 Switch or Layer 3 Switch and you
want to initiate a ping to host “NYC01” on that domain, you need to reference only the host name in
the command instead of the host name and its domain name. For example, you could enter either
of the following commands to initiate the ping.