summaryrefslogtreecommitdiffstats
path: root/Bachelor/CCNA4/en_CCNA4_v30/ch1/1_2_3/content.html
blob: bad1b35941b385fc399b451313e289e31e1b9d89 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
<html>



<head>

<meta http-equiv="Content-Language" content="en-us">

<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">

<title>Content</title>

<base target="_self">

</head>



<body background="../../images/bg.gif" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0" onLoad="window.focus();" link="#808080" vlink="#808080" alink="#808080">



<table border="0" cellpadding="0" cellspacing="0" width="100%">

  <tr>

    <td bgcolor="#336666" width="18" valign="top">

    <img border="0" src="../../images/content_lines.gif" width="16" height="25">

    <img border="0" src="../../images/transdot.gif" width="2" height="1"></td>

    <td bgcolor="#336666"><font face="Arial" size="2" color="#FFFFFF"><b>1.2</font></b></td>

    <td bgcolor="#336666"><img border="0" src="../../images/transdot.gif" width="10" height="1"></td>

    <td bgcolor="#336666" width="100%"><b>

    <font face="Arial" size="2" color="#FFFFFF">DHCP</font></b></td>

    <td width="9" bgcolor="#336666">&nbsp;</td>

  </tr>

  <tr>

    <td bgcolor="#669999" height="25" width="18">&nbsp;</td>

    <td bgcolor="#669999" height="25"><b><font face="Arial" size="2" color="#FFFFFF">

    1.2.3</font></b></td> 

    <td bgcolor="#669999"><img border="0" src="../../images/transdot.gif" width="10" height="1"></td>

    <td bgcolor="#669999" height="25" width="100%"><b>

    <font face="Arial" size="2" color="#FFFFFF">Major DHCP features</font></b></td>

    <td bgcolor="#669999" height="25" width="9">&nbsp;	</td>

  </tr></table>



<table border="0" cellpadding="0" cellspacing="0" width="95%" bordercolor="#111111">

      <tr>

        <td width="15"></td>

        <td>



        <p><font face="Arial" size="2">There are three mechanisms used to assign 

        an IP address to the client: </font>

          <ul>

            <li><font face="Arial" size="2"><b>Automatic allocation</b> � DHCP 

            assigns a permanent IP address to a client.</font></li>

            <li><font face="Arial" size="2"><b>Manual allocation</b> � The IP 

            address for the client is assigned by the administrator. DHCP 

            conveys the address to the client.</font></li>

            <li><font face="Arial" size="2"><b>Dynamic allocation</b> � DHCP 

            assigns, or leases, an IP address to the client for a limited period 

            of time.</font></li>

            </ul>

        <p><font face="Arial" size="2">The focus of this section is the dynamic 

        allocation mechanism. Some of the configuration parameters available are 

        listed in IETF RFC 1533:</font><ul>

              <li><font face="Arial" size="2">Subnet mask</font></li>

              <li><font face="Arial" size="2">Router</font></li>

              <li><font face="Arial" size="2">Domain Name</font></li>

              <li><font face="Arial" size="2">Domain Name Server(s)</font></li>

              <li><font face="Arial" size="2">WINS Server(s)</font></li>

              </ul>

        <p><font face="Arial" size="2">The DHCP server creates pools of IP 

        addresses and associated parameters.

        <img border="0" src="../../images/1.gif" align="absmiddle" width="12" height="12"> 

        Pools are dedicated to an individual logical IP subnet. This allows 

        multiple DHCP servers to respond and IP clients to be mobile. If 

        multiple servers respond, a client can choose only one of the offers.</font></p>

        <TABLE bgcolor="#B0AFAF" width="95%" border="0" cellspacing="0" cellpadding="0">

        <TR>

        <TD valign="top">

        	<TABLE bgcolor="#669999" width="100%" cellspacing="0" cellpadding="0" border="0">

        	<TR>

        	<TD width="5">

            <img border="0" src="../../images/lab_toplft.gif" width="116" height="23"></TD>

        	<TD><IMG alt="" height="1" width="3" src="../../images/s.gif"></TD><TD align="right" valign="top">

            <IMG alt="" src="../../images/corner_ur_7.gif" width="7" height="7"></TD>

        	</TR>

        	</TABLE>

        

        	<TABLE bgcolor="#B0AFAF" width="100%" cellspacing="0" cellpadding="0" border="0">

	        <TR>

      		<TD>

        		<TABLE width="100%" cellpadding="2" cellspacing="0" border="0" bordercolor="#111111">

        		<TR>

        		<TD bgcolor="#ffffff" width="15">&nbsp;</TD>

        		<TD bgcolor="#ffffff"><font FACE="Arial" SIZE="2" COLOR="#000000">

            	<p><font color="#808080">

                <img border="0" src="../../images/links_icon.gif" width="25" height="25">

                <b>Web Links</b></font></p>

            	</font><font FACE="Arial" SIZE="2" COLOR="#808080">



            	<p>DHCP Overview<p>

          <a target="_blank" href="http://support.baynetworks.com/library/tpubs/html/router/soft1200/117362AA/A_29.HTM">

          http://support.baynetworks.com/library/

          tpubs/html/router/ soft1200/ 117362AA/A_29.HTM</a></font></p>

            	

                <p>    		

                <IMG alt="" height="2" width="1" src="../../images/s.gif"></p>

                </TD>

        		</TR>

        		</TABLE>

        	</TD>

        	</TR>

        	</TABLE>

        </TD>

        </TR>

        </TABLE><p>

        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

        </td>

      </tr>

    </table>



</body>



</html>