Configuring dns, Ip tools, System administration – 3Com ADSL Modem Ethernet User Manual

Page 23: Setting date and time, Deleting a packet filter

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System Administration

3-7

The route will appear as destination 0.0.0.0 in the IP routing table.

To delete an IP Static route, use the command:

delete ip route <ip network address>

Configuring DNS

You can configure the 3Com HomeConnect ADSL Modem Ethernet to access a
DNS server to resolve host names. This facility is used by the ping, telnet, rlogin
and update software ftp commands.

DNS server entries are stored in the DNS Server Table.

To add a DNS server use the command:

add dns server <domain_name>

primary <ip_addr>

secondary <ip_addr>

The <domain_name> parameter can be a specific domain (i.e., 3com.com) or it
can be the wildcard character ’*’, representing all domains. You can specify
different DNS servers for different domains. When searching for the appropriate
DNS server, the modem first searches the local DNS server table for a entry for the
specific domain of the host name you are attempting to resolve. If no specific
entry is found, the wildcard entry is used.

To list the entries in the DNS Server Table use the command:

list dns servers

To delete an entry from the DNS Server Table use the command:

delete dns server <domain_name>

where domain name is the specific domain or the wildcard character ’*’.

IP Tools

The 3Com HomeConnect ADSL Modem Ethernet CLI provides a standard set of IP
utility programs including Ping, TELNET and RLOGIN.

System

Administration

This section provides details and examples for performing the following system
administration tasks:

Setting Date and Time

Setting System Identification

Configuring TELNET Login Access

Providing TFTP Access

Setting Password Protection

Configuration Scripting

Remember to save your configuration using the save all command before
rebooting your 3Com HomeConnect ADSL Modem Ethernet so that your changes
will be written to permanent FLASH memory.

Setting Date and Time

You can obtain the current date, time and system uptime using the command:

show date

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