54
disable compression <Profile Name>
Description:
This command disables compression over the specified interface.
enable compression <Profile Name>
Description:
This command enables compression over the specified interface.
show compression statistics <Profile Name>
Description:
This command displays compression related statistics for the specified interface.
DHCP Commands
The Dynamic Host Control Protocol (DHCP) is a client/server protocol
2
that defines an efficient and
convenient means of dynamically assigning IP addresses and other networking parameters for a period of
time upon request. In a router environment, this means either the dynamic assignment of “private” IP
addresses to PCs co-residing on the LAN segment with the router or a static assignment of these
addresses according to the station identification (the MAC address) of the requesting client.
Since the routers are, by default, configured with a private IP address for its LAN connection, the DHCP
server is automatically enabled. (The DHCP function is disabled if the router discovers another DHCP
server at initialization time, or if the user has explicitly disabled this function.) DHCP clients residing in
LAN-resident machines, such as those running Windows 95/98, may then request a lease on an IP address
from a DHCP server. As the term implies, the assignment of the address is temporary. The default lease
period in a router’s DHCP server is ten hours. The DHCP client is responsible for the renewal of the
lease.
Both static and dynamic DHCP assignments are supported. The range of IP addresses in the dynamic pool
from which the server selects an address to satisfy a request depends upon the currently configured
private address and network mask of the router. The router’s defaultIP private address is 192.168.168.230
with a network mask of 255.255.255.0. This private address may be changed to any private address and
network mask as specified in the following table:
Class Network
Address Network
Prefix
Default
Network Mask
Maximum
Number of
Host
Addresses
Lowest/Highest Address
A 10.0.0.0
8
bits
255.0.0.0
16,777,214 10.0.0.1/10.255.255.254
B 172.xx.0.0
31
≥
xx
≥
16
12 bits
255.255.0.0
65534
172.xx.0.1/172.xx.255.254
31
≥
xx
≥
16
C 192.168.xx.0
255
≥
xx
≥
0
16 bits
255.255.255.0
254
192.168.xx.1/192.168.xx.254
255
≥
xx
≥
0
2
The Internet Engineering Task Force (IETF) defines DHCP in RFC-2131 and RFC-2132.
