Cisco Catalyst 2960-X User Manual

Numbered Standard IPv4 ACLs
When creating an ACL, remember that, by default, the end of the ACL contains an implicit deny statement
for all packets that it did not find a match for before reaching the end. With standard access lists, if you omit
the mask from an associated IP host address ACL specification, 0.0.0.0 is assumed to be the mask.
The switch always rewrites the order of standard access lists so that entries with host matches and entries
with matches having a don’t care mask of 0.0.0.0 are moved to the top of the list, above any entries with
non-zero don’t care masks. Therefore, in show command output and in the configuration file, the ACEs do
not necessarily appear in the order in which they were entered.
After creating a numbered standard IPv4 ACL, you can apply it to VLANs, to terminal lines, or to interfaces.
Numbered Extended IPv4 ACLs
Although standard ACLs use only source addresses for matching, you can use extended ACL source and
destination addresses for matching operations and optional protocol type information for finer granularity of
control. When you are creating ACEs in numbered extended access lists, remember that after you create the
ACL, any additions are placed at the end of the list. You cannot reorder the list or selectively add or remove
ACEs from a numbered list.
The switch does not support dynamic or reflexive access lists. It also does not support filtering based on the
type of service (ToS) minimize-monetary-cost bit.
Some protocols also have specific parameters and keywords that apply to that protocol.
You can define an extended TCP, UDP, ICMP, IGMP, or other IP ACL. The switch also supports these IP
protocols:
ICMP echo-reply cannot be filtered. All other ICMP codes or types can be filtered.Note
These IP protocols are supported:
•
Authentication Header Protocol (ahp)
•
Encapsulation Security Payload (esp)
•
Enhanced Interior Gateway Routing Protocol (eigrp)
•
generic routing encapsulation (gre)
•
Internet Control Message Protocol (icmp)
•
Internet Group Management Protocol (igmp)
•
any Interior Protocol (ip)
•
IP in IP tunneling (ipinip)
•
KA9Q NOS-compatible IP over IP tunneling (nos)
•
Open Shortest Path First routing (ospf)
•
Payload Compression Protocol (pcp)
•
Protocol-Independent Multicast (pim)
Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX
OL-29048-01 149
Configuring IPv4 ACLs
Standard and Extended IPv4 ACLs

Cisco Catalyst 2960-X Specifications

General

Console port	RJ-45
USB 2.0 ports quantity	2
SFP module slots quantity	4
Installed SFP modules quantity	-
Gigabit Ethernet (copper) ports quantity	48
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Power source	AC
Input current	5 A
AC input voltage	100 - 240 V
Power consumption (typical)	60.9 W
Number of power supply units	1
Redundant power supply (RPS) support	Yes
Operating altitude	0 - 3000 m
Non-operating altitude	0 - 4000 m
Storage temperature (T-T)	-25 - 70 °C
Operating temperature (T-T)	-5 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Switching protocols	UDP, TCP, RADIUS/TACACS+
Number of VLANs	1023
Networking standards	IEEE 802.1ab, IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3at, IEEE 802.3az, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Throughput	107.1 Mpps
Jumbo frames	9216
Number of queues	8
MAC address table	16000 entries
Number of static routes	1000
DHCP features	DHCP server
Authentication	MAC-based authentication, Port-based authentication
Security algorithms	802.1x RADIUS, SNMP, SSH
Access Control List (ACL) rules	3
Switch type	Managed
Switch layer	L2/L3
Safety	UL 60950-1, CAN/CSA-C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950-1
Form factor	1U
Product color	Black
Total Power over Ethernet (PoE) budget	370 W
Power over Ethernet (PoE) ports quantity	24
Power over Ethernet plus (PoE+) ports quantity	12
Memory type	DRAM
Noise level	39 dB
Flash memory	128 MB
Internal memory	512 MB
Processor frequency	600 MHz
Mean time between failures (MTBF)	276870 h

Weight and Dimensions

Depth	368 mm
Width	445 mm
Height	45 mm
Weight	5800 g