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<td bgcolor="#99cccc" class="content"><b><img src="../../index_images/spacer.gif" width="1" height="3" alt="" border="0"><font face="Arial" size="1" color="#003333">Modules:</font>
</font></b>
<font color="#003399" face="Arial" size="1"> | 1 |
<a href="../ch2/index.html">2</a> |
<a href="../ch3/index.html">3</a> |
<a href="../ch4/index.html">4</a> |
<a href="../ch5/index.html">5</a> |
<a href="../ch6/index.html">6</a> |
<a href="../cs1/index.html">CS</a> |
<a href="../all/index.html">All</a> |</font></TD>
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<td width="100%"><b><font face="Arial" color="#003333">M</font></b><font color="#003333" size="3" face="Arial"><b>odule 1:
Scaling IP Addresses</b></font><font color="#003333"><br>
</font><table border="0" width="95%" cellpadding="2" cellspacing="8" bordercolor="#111111" height="622">
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b><font face="Arial" size="2">
Command</font></b></td>
<td valign="top" width="40%" height="19"><b><font face="Arial" size="2">
Command Description</font></b></td>
<td valign="top" width="30%" height="19"><b><font face="Arial" size="2">
Command Syntax</font></b></td>
</tr>
<tr>
<td valign="top" width="10%" height="32"><font face="Arial" size="2">
<a target="main" href="../../../ch1/1_1_4/index.html">1.1.4</a></font></td>
<td valign="top" width="20%" height="32"><b>
<font face="Courier New" size="2">ip route 199.99.9.32 255.255.224.0
200.2.2.18 </font></b></td>
<td valign="top" width="40%" height="32"><font face="Arial" size="2">
To establish static routes, use the </font>
<font face="Courier New" size="2">
<b>ip route</b></font><font face="Arial" size="2">
global configuration
command. To remove static routes, use the </font>
<font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="32">
<font face="Courier New" size="2"><b>ip route </b><i>prefix mask</i><b> </b>{<i>address</i>
| <i>interface-type interface-number </i>[<i>ip-address</i>]} [<i>distance</i>] [<b>tag</b> <i>tag</i>] [<b>permanent</b>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="32"> </td>
<td valign="top" width="20%" height="32"><b>
<font face="Courier New" size="2">ip nat pool public_access
199.99.9.40 199.99.9.62 netmask 255.255.255.224</font></b></td>
<td valign="top" width="40%" height="32"><font face="Arial" size="2">
To define a pool of IP addresses for NAT, use the </font>
<font face="Courier New" size="2">
<b>ip nat pool</b></font><font face="Arial" size="2">
global configuration command. To remove one
or more addresses from the pool, use the </font>
<font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="32">
<font face="Courier New" size="2"><b>
ip nat pool </b><i>name start-ip end-ip</i><b>
{netmask</b> <i>netmask</i> | <b>prefix-length</b> <i>prefix-length</i>}[<b>type rotary</b>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="48"> </td>
<td valign="top" width="20%" height="48"><b>
<font face="Courier New" size="2">access-list 1 permit 10.10.10.0
0.0.0.255</font></b></td>
<td valign="top" width="40%" height="48"><font face="Arial" size="2">
To define an access-control list, use the </font>
<b>
<font face="Courier New" size="2">
access-list</font><font face="Arial" size="2"> </font> </b> <font face="Arial" size="2">
global
configuration command. To remove a standard access lists, use the </font>
<font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command. </font></td>
<td valign="top" width="30%" height="48">
<font face="Courier New" size="2"><b>
IP standard access-list: </b>access-list<i> access-list-number</i><b>
</b>{<b>deny</b> |
<b>permit</b> | <b>remark</b> <b>line</b>} <i>source</i>[<i>source-wildcard</i>] [<b>log</b>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="48"> </td>
<td valign="top" width="20%" height="48"><b>
<font face="Courier New" size="2">ip nat inside source list 1 pool
public_access</font></b></td>
<td valign="top" width="40%" height="48"><font face="Arial" size="2">
To enable NAT of the inside source
address, use the </font><font face="Courier New" size="2">
<b>ip nat inside source</b></font><font face="Arial" size="2">
global configuration command. To
remove the static translation or remove the dynamic association to a
pool, use the </font><font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="48">
<font face="Courier New" size="2"><b>ip nat inside source </b>{list
{<i>access-list-number </i>|<i>name</i>} {<b>pool</b> <i>name</i> | <b>interface</b>
<i>dialer-name</i>}
[<b>overload</b>] | <b>static</b> <i>local-ip global-ip</i>}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="80"> </td>
<td valign="top" width="20%" height="80"><b>
<font face="Courier New" size="2">ip nat inside</font></b></td>
<td valign="top" width="40%" height="80"><font face="Arial" size="2">
To designate that traffic originating from or destined for the
interface is subject to NAT, use the </font>
<font face="Courier New" size="2">
<b>ip
nat interface</b></font><font face="Arial" size="2">
configuration command. To prevent the interface from
being able to translate, use the </font>
<font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="80">
<font face="Courier New" size="2"><b>
ip nat </b>{<b>inside</b> | <b>outside</b>}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="48"> </td>
<td valign="top" width="20%" height="48"><b>
<font face="Courier New" size="2">ip nat outside</font></b></td>
<td valign="top" width="40%" height="48"><font face="Arial" size="2">
To designate that traffic originating from or destined for the
interface is subject to NAT, use the </font>
<font face="Courier New" size="2">
<b>ip
nat interface</b></font><font face="Arial" size="2">
configuration command. To prevent the interface from
being able to translate, use the </font>
<font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="48">
<font face="Courier New" size="2"><b>ip nat </b>{<b>inside</b> | <b>outside</b>}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">show ip nat translations</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To display active NAT translations, use
the </font><font face="Courier New" size="2">
<b>show ip nat</b></font><font face="Arial" size="2">
translations EXEC command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>show ip nat translations </b>
[<b>verbose</b>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">ip nat inside source list 1
interface serial 0 overload</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To enable NAT of the inside source
address, use the </font><font face="Courier New" size="2">
<b>ip nat inside source</b></font><font face="Arial" size="2">
global configuration command. To
remove the static translation or remove the dynamic association to a
pool, use the </font><font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>
ip nat inside source </b>{<b>list</b> {<i>access-list-number</i> |<i>name</i>} {<b>pool</b>
<i>name</i> |
<b>interface</b> <i>dialer-name</i>} [<b>overload</b>] | <b>static</b>
<i>local-ip global-ip</i>}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">ip nat inside source static
10.10.10.10 199.99.9.33</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To enable NAT of the inside source
address, use the </font><font face="Courier New" size="2">
<b>ip nat inside source</b></font><font face="Arial" size="2">
global configuration command. To
remove the static translation or remove the dynamic association to a
pool, use the </font><font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>
ip nat inside source </b>{<b>list</b> {<i>access-list-number</i> |<i>name</i>} {<b>pool</b>
<i>name</i> |
<b>interface</b> <i>dialer-name</i>} [<b>overload</b>] | <b>static</b>
<i>local-ip global-ip</i>}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"><font face="Arial" size="2">
<a target="main" href="../../../ch1/1_1_5/index.html">1.1.5</a></font></td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">show ip nat statistics</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To display NAT statistics, use the </font>
<font face="Courier New" size="2">
<b>show ip nat statistics</b></font><font face="Arial" size="2">
EXEC command.</font></td>
<td valign="top" width="30%" height="19"><b>
<font face="Courier New" size="2">show ip nat statistics </font></b></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">show ip nat translations</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To display active NAT translations, use
the </font><font face="Courier New" size="2">
<b>show ip nat translations</b></font><font face="Arial" size="2">
EXEC command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>
show ip nat translations </b>[<b>verbose</b>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">clear ip nat translation *</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To clear dynamic NAT translations from
the translation table, use the clear </font>
<b>
<font face="Courier New" size="2">
ip nat
<b>translation</b></font><font face="Arial" size="2"> </font></b><font face="Arial" size="2"> EXEC command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>clear ip nat translation </b>{* |
[<b>inside</b> <i>global-ip local-ip</i>] [<b>outside</b> <i>local-ip global-ip</i>]}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19">
<font face="Courier New" size="2"><b>
clear ip nat translation inside global-ip local-ip </b>[<i>outside local-ip
global-ip</i>]</font></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To clear dynamic NAT translations from
the translation table, use the </font>
<font face="Courier New" size="2">
<b>clear ip nat translation</b></font><font face="Arial" size="2">
EXEC command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>clear ip nat translation </b>{* |
[<b>inside</b> <i>global-ip local-ip</i>] [<b>outside</b> <i>local-ip global-ip</i>]}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19">
<font face="Courier New" size="2"><b>
clear ip nat translation <i>protocol</i> inside global-ip global-port local-ip
local-port </b>[<i>outside local-ip local-port global-ip global-port</i>]</font></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To clear extended dynamic NAT translations from
the translation table, use the </font>
<font size="2" face="Courier New"><b>clear ip nat translation</b></font><font face="Arial" size="2"> EXEC command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>clear ip nat translation </b><i>
protocol</i> <b>inside</b> <i>global-ip global-port</i> <i>local-ip</i>
local-port [<b>outside</b> <i>local-ip global-ip</i>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"><font face="Arial" size="2">
<a target="main" href="../../../ch1/1_1_6/index.html">1.1.6</a></font></td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">debug ip nat</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
Use this command to verify the operation of the NAT feature by
displaying information about every packet that is translated by the
router.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>
debug ip nat</b></font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">debug ip nat detailed</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
This command generates a description of each packet considered for
translation. This command also outputs information about certain
errors or exception conditions, such as the failure to allocate a
global address.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>
debug ip nat detailed</b></font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"><font face="Arial" size="2">
<a target="main" href="../../../ch1/1_2_5/index.html">1.2.5</a></font></td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">ip dhcp pool</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To activate the IOS DHCP server and configure pool-specific settings,
use the </font><font face="Courier New" size="2">
<b>ip dhcp pool</b></font><font face="Arial" size="2">
command. To remove the address pool, use the </font><font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2">
<b>ip dhcp pool
</b><i>pool-name </i> </font>
</td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">ip dhcp excluded-address</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
The DHCP Server assumes that all IP addresses in a DHCP address pool
subnet are available for assigning to DHCP clients. You must specify
the IP address that the DHCP Server should not assign to clients.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>dhcp excluded-address
</b><i>low-address</i><b>
</b>[<i>high-address</i>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">default-router</font></b></td>
<td valign="top" width="40%" height="19"><font size="2" face="Arial">
This command specifies the IP address of the default router for a DHCP
client. One IP address is required but up to eight IP addresses may be
specified. To disable this feature, use the no form of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>default-router </b>
<i>address</i> [<i>address2</i> ...
<i>address8</i>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">dns-server</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
This command specifies the IP address of a DNS server that is
available to a DHCP client. To disable this feature, use the no form
of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>dns-server </b>
<i>address</i> [<i>address2</i> ...
<i>address8</i>]</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">netbios-name-server</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
This command specifies the IP address of a netbios name server that is
available to a DHCP client. One IP address is required. However, up to
eight IP addresses can be specified in one command line. To remove
the NetBIOS name server list, use the </font><font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>netbios-name-server </b> <i>address</i> [<i>address2</i> ...
<i>address8</i>] </font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">no service dhcp</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
Enables the CiscoIOS DHCP server and relay features on the router.
Use the </font><font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command to disable the Cisco IOS DHCP server
and relay features.</font></td>
<td valign="top" width="30%" height="19">
<b><font face="Courier New" size="2">no service dhcp</font></b></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">service dhcp</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
Enables the CiscoIOS DHCP server and relay features on the router.
Use the </font><font face="Courier New" size="2">
<b>no </b></font><font face="Arial" size="2">
form of this command to disable the Cisco IOS DHCP server
and relay features.</font></td>
<td valign="top" width="30%" height="19">
<b><font face="Courier New" size="2">service dhcp</font></b></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">domain-name</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
This command specifies the domain name for the client. To remove the
domain name, use the </font><font face="Courier New" size="2">
<b>no</b></font><font face="Arial" size="2">
form of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2">
<b>domain-name </b><i>domain </i> </font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"><font face="Arial" size="2">
<a target="main" href="../../../ch1/1_2_6/index.html">1.2.6</a></font></td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">show ip dhcp binding</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
This command is used to display DHCP server information from EXEC
mode. This displays a list of all bindings created by the DHCP
service.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>show ip dhcp </b>{<b>binding</b>
[<i>address</i>] | <b>conflict</b> [<i>address</i>] | <b>database</b> [<i>url</i>] |
<b>server</b> <b>statistics</b>}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"> </td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">show ip dhcp server statistics</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
This command is used to display DHCP server information from EXEC
mode. This will display count information regarding the number of DHCP
messages that have been sent and received.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2"><b>show ip dhcp </b>{<b>binding</b>
[<i>address</i>] | <b>conflict</b> [<i>address</i>] | <b>database</b> [<i>url</i>] |
<b>server statistics</b>}</font></td>
</tr>
<tr>
<td valign="top" width="10%" height="19"><font face="Arial" size="2">
<a target="main" href="../../../ch1/1_2_8/index.html">1.2.8</a></font></td>
<td valign="top" width="20%" height="19"><b>
<font face="Courier New" size="2">ip helper-address</font></b></td>
<td valign="top" width="40%" height="19"><font face="Arial" size="2">
To have the Cisco IOS software forward User Datagram Protocol (UDP)
broadcasts, including BOOTP, received on an interface, use the </font>
<font face="Courier New" size="2">
<b>ip
helper-address interface</b></font><font face="Arial" size="2">
configuration command. To disable the
forwarding of broadcast packets to specific addresses, use the no form
of this command.</font></td>
<td valign="top" width="30%" height="19">
<font face="Courier New" size="2">
<b>ip helper-address </b><i>address</i></font></td>
</tr>
</table>
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