Dhcp and bootp, Bootp database, Dhcp and bootp bootp database – GarrettCom Magnum MNS-6K User Manual

Page 37: Igure, Checking the ip settings

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M A G N U M 6 K S W I T C H E S , M N S - 6 K U S E R G U I D E

36


To verify the IP address settings, the ‘show ipconfig’ command can be used.

Magnum6K25>

show ipconfig

IP Address : 192.168.1.150
Subnet Mask : 255.255.255.0
Default Gateway : 192.168.1.10
Magnum6K25>

F

IGURE

19

-

Checking the IP settings

Besides manually assigning IP addresses, there are other means to assign an IP address
automatically. The two most common procedures are using DHCP and bootp.

DHCP and bootp

DHCP is commonly used for setting up addresses for computers,

users and other user devices on the network. bootp is the older

cousin of DHCP and is used for setting up IP addresses of

networking devices such as switches, routers, VoIP phones and more. Both of them can

work independent of each other. Both of them are widely used in the industry. It’s best to

check with your network administrator as to what protocol to use and what the related

parameters are. DHCP and bootp require respective services on the network. DHCP and

bootp can automatically assign an IP address. It is assumed that the reader knows how to

setup the necessary bootp parameters (usually specified on Linux/UNIX systems in

/etc/boopttab

1

).

Bootp Database

Bootp keeps a record of systems supported in a database – a simple text file. On most
systems, the bootp service is not started as a default and has to be enabled. A sample entry
by which the bootp software will look up the database and update the IP address and
subnet mask of the switch would be as follows

M6k25switch:\
ht=ether:\
ha=002006250065:\
ip=192.168.1.88:\
sm=255.255.255.0:\
gw=192.168.1.1:\
hn:\
vm=rfc1048

where
M6k25switch: is a user-defined symbolic name for the switch

1

Note – on Windows systems – the location of the file will vary depending on which software is being used.

j

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