Dynamic host configuration protocol, Figure 359: showing entries in the dns cache – LevelOne GTL-2691 User Manual

Page 601

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C

HAPTER

17

| IP Services

Dynamic Host Configuration Protocol

– 601 –

client can try each address in succession, until it establishes a

connection with the target device.

P

ARAMETERS

These parameters are displayed:

No. – The entry number for each resource record.

Flag – The flag is always “4” indicating a cache entry and therefore

unreliable.

Type – This field includes CNAME which specifies the host address for

the owner, and ALIAS which specifies an alias.

IP – The IP address associated with this record.

TTL – The time to live reported by the name server.

Host – The host name associated with this record.

W

EB

I

NTERFACE

To display entries in the DNS cache:

1.

Click IP Service, DNS, Cache.

Figure 359: Showing Entries in the DNS Cache

D

YNAMIC

H

OST

C

ONFIGURATION

P

ROTOCOL

Dynamic Host Configuration Protocol (DHCP) can dynamically allocate an

IP address and other configuration information to network clients when

they boot up. If a subnet does not already include a BOOTP or DHCP server,

you can relay DHCP client requests to a DHCP server on another subnet, or

configure the DHCP server on this switch to support that subnet.

When configuring the DHCP server on this switch, you can configure an

address pool for each unique IP interface, or manually assign a static IP

address to clients based on their hardware address or client identifier. The

DHCP server can provide the host’s IP address, domain name, gateway

router and DNS server, information about the host’s boot image including

the TFTP server to access for download and the name of the boot file, or

boot information for NetBIOS Windows Internet Naming Service (WINS).

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