What is a ping sweep Cisco exam?

What is a ping sweep Cisco exam?

A ping sweep (also known as an ICMP sweep) is a basic network scanning technique used to determine which of a range of IP addresses map to live hosts (computers). To do this, the ping requires an address to send the echo request to, which can be an IP address or a web server domain name.

How do you do a ping sweep?

To perform a ping sweep:

1. From a Microsoft OS command line, Type for /l %i in (1,1,254) do @ping -n 1 -w 100 . %i. For example, if the host network is 192.168.
2. Press Enter.
3. Observe the results as the command sweeps the network searching for hosts.

What is ping and ping sweep?

Ping vs. Ping Sweep. While the ping command is used to ping a single host device to identify its existence, ping sweep helps to ping multiple IP addresses simultaneously. It’s a basic network scanning technique used to determine the range of active and inactive IP addresses available on the network.

What is ping command in Cisco?

Description. The ping command sends a sequence of ICMP echo request packets to the specified host . It is one of the simplest and most commonly used troubleshooting tools. Ping prints a special character for each packet indicating whether the router received the corresponding echo reply.

Why would a ping sweep be used?

A ping sweep (also known as an ICMP sweep) is a basic network scanning technique used to determine which of a range of IP addresses map to live hosts (computers).

What is the role of an IPS?

The major duties of an IPS Officer can be as follows: #1. Maintenance of public peace and order, crime prevention, investigation and detection, VIP security, counter-terrorism, tackling smuggling, railway policing, drug trafficking, disaster management, border policing, protection of the economic laws, etc.

How do I ping a series of IP addresses?

Windows

1. Press the “Windows” key and type “command.” Right-click “Command Prompt” and choose “Run As Administrator…” Confirm the request.
2. Use the DOS “FOR” command to create a loop from one to 254, the range of valid IP addresses on a 192.168.1.0 network.

Why would ping sweep be used?

Ping Sweep is a technique used to identify if the hosts are alive in the networks using their IP addresses. For example, if there is a network with network ID 192.10. 0.0/24 then it is very simple to identify the total number of hosts there by ping sweeping this network.

What is the purpose of ping sweep?

How do I use ping?

How to run a ping network test

1. Type “cmd” to bring up the Command Prompt.
2. Open the Command Prompt.
3. Type “ping” in the black box and hit the space bar.
4. Type the IP address you’d like to ping (e.g., 192. XXX. X.X).
5. Review the ping results displayed.

What’s the MTU of a Cisco extended ping sweep?

@Neil, in Jeff Doyle’s book, he sends four packets – 500B, 1000B, 1500B, 2000B, and each of these packets has DF bit set. Somewhere along the path towards the IP address he is pinging, there is a router whose outgoing interface’s MTU is set to 1478.

Why do I need a ping sweep on my router?

If the goal of the ping sweep is to see all the hosts on a particular subnet then the router arp table is a valuable resource. Ping the broadcast address; then view the arp table.

How to decrease the sweep size in Cisco?

In order to decrease the value, increase the sweep interval or decrease !— Minimum and Maximum sweep size. Based on the previous example, the !— number 17890 is an expected value and tries to ping 17890 times. 12-04-2009 01:14 AM 12-04-2009 01:14 AM

How big is an extended ping sweep packet?

I know this is a very old thread but after looking at the Jeff Doyle CCIE Routing TCP/IP book Vol II (page 11) regarding extended ping, he states a min MTU size of 1478 but the ping of 1500 bytes is returned and only the one packet of 2000 bytes isn’t? Four packets are sent: 500, 1000, 1500 and 2000 bytes.