Cisco RJ-45-to-AUX Brochure page 274

Item
Network
First Host
Last Host
Broadcast Address
Subnetting using variable length subnet masks (VLSM) seems pretty easy, doesn't it?
The type of access list defined is identified by the number you assign to the access list. Table 13.3 identifies
the types of access lists that can be configured, along with the associated string of numbers that can be used
with each type.
Table 13.3: The available access list numbers and the associated access list types.
Available Numbers
1 through 99
100 through 199
200 through 299
300 through 399
600 through 699
700 through 799
800 through 899
900 through 999
1000 through 1099
1100 through 1199
1200 through 1299
Extended access lists use many of the same configuration rules as standard access lists. An extended access
list allows filtering based on source address, destination address, protocol type, application, or TCP port
number.
Note Just as in standard access lists, an implied "deny all" exists at the end of each extended access
list.
The IP extended access list command is more complex than the standard access list command and offers many
more options. The IP extended access list syntax is shown here:
access−list access−list−number {deny|permit} {protocol type}
source−address source−wildcard destination−address destination−wildcard
[protocol specific options|operator] [log]
Tip You can use the syntax any as a parameter to replace the source or destination address; any implies all
addresses. In IPX access lists, A(n−1) indicates an any syntax.
Let's take a look at the syntax elements for the IP extended access list that are not included in the standard
access list:
access−list−number—For an IP extended access list, the range of possible numbers is 100 to 199.
deny|permit—A permit indicates whether the source will be allowed in or out of an interface. A
deny indicates that the data will be dropped and an ICMP message will be sent to the source address.
protocol type—This syntax element indicates the protocol to match. Possible options include eigrp,
icmp, igrp, ip, nos, ospf, tcp, udp, or any number from 0 to 255.
Tip The protocol syntax of ip indicates all protocol types.
Network 1
16
17
30
31
Network 2
32
33
46
47
Access List Type
IP standard
IP extended
Protocol−Type−Code
DECnet
AppleTalk
48−bit Media Access Control (MAC) address
IPX standard
IPX extended
IPX Service Advertising Protocol (SAP)
Extended 48−bit MAC address
IPX summary address
258
Network 3
48
49
62
63