Mitel SME Server V5 with ServiceLink Guia do Utilizador descarregar pdf (Página 53)

Chapter 11. Conﬁguration

11.5.2. Reserving IP Addresses Through DHCP

Another task you can perform through this panel is to reserve an IP address for a given system based on its Ethernet address. For instance, you might

have another intranet web server within your company that you want to always have the same IP address. One method of assigning that address is to

manually conﬁgure the client machine to have a static IP address. The negative aspect of doing this is that if you later want to change the network

settings for that machine, you must manually go and conﬁgure that machine. An example would be if one of your DNS servers changed its IP

address. Additionally, you have to keep track somewhere of the fact that you have assigned a speciﬁc IP address to that machine.

Rather than conﬁguring the machine manually, you can reserve an IP address from the DHCP server for that speciﬁc machine. This has the same

result as manually conﬁguring a static IP address, but offers two beneﬁts. First, you have one location to keep track of all assigned static address.

Second, through the DHCP server you will provide network settings. If you wish to change those settings, the change can be simply done on your

server. All DHCP clients will then receive those updated changes when they renew their DHCP-provided addresses.

To reserve an IP address, you must ﬁrst determine the Ethernet address of your client system. Windows NT/2000 users can type the command

ipconfig /all. Windows 95/98 users can run the command winipcfg. Linux/UNIX users can type ifconfig.

Once you have determined the client’s Ethernet address, click on the link to create a new hostname for a local host. Add the hostname of the target

system, the Ethernet address along with the desired IP address into the web panel. From this point on speciﬁed IP address will only be provided to a

client system with the matching Ethernet address.

11.6. E-mail Retrieval

As shown below, this section of the server manager allows you to specify the protocol used to retrieve e-mail from your ISP and conﬁgure other

settings regarding the retrieval of e-mail.

Your choice of e-mail retrieval mode will depend on the arrangements you made with your Internet service provider:

• If you have a dedicated connection, set E-mail retrieval mode to "Standard".

• If you arranged "ETRN" support with your ISP, choose that setting and then scroll down to the ﬁeld that asks for the IP address or hostname

of your ISP’s secondary mail server. This secondary mail server will provide temporary e-mail storage when your server is not connected to the

Internet.

• If you arranged "multidrop" mail service from your ISP, choose "multidrop" and then scroll down to the ﬁeld that asks for the IP address or

hostname of your ISP’s secondary mail server. This secondary mail server will receive all e-mail for your domain and store it in a single POP

mailbox. Further down the screen, you will need to specify the user account and password assigned by your ISP for this POP mailbox. Your server

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Mitel SME Server V5 with ServiceLink Guia do Utilizador Página 53