A small isp requests your help, Computer Network Security

Assignment Help:

QUESTION

A small ISP requests your help. The technicians report that they have had no downstream access to the Internet. They believe the problem lies with their access provider. They provide you with the following logs. What type of attack is this? What can be done to fix the problem?

16:16:07.607758 130.127.120.29 > 255.255.255.255: icmp: echo request (DF) (ttl 238, id 46507)

16:16:07.607758 207.24.115.20 > 130.127.120.29: icmp: echo reply (ttl 64, id 802)

16:16:07.607758 207.24.115.112 > 130.127.120.29: icmp: echo reply (ttl 60,id 3187)

16:16:07.607758 207.24.115.111 > 130.127.120.29: icmp: echo reply (ttl 60, id 12937)

16:16:10.877758 130.127.120.29 > 255.255.255.255: icmp: echo request (DF) (ttl 238, id 46508)

16:16:10.877758 207.24.115.20 > 130.127.120.29: icmp: echo reply (ttl 64, id 803)

16:16:10.877758 207.24.115.111 > 130.127.120.29: icmp: echo reply (ttl 60, id 12938)

16:16:10.877758 207.24.115.112 > 130.127.120.29: icmp: echo reply (ttl 60, id 3188)

16:16:12.757758 195.210.86.88 > 255.255.255.255: icmp: echo request (ttl 241, id 64402)

16:16:12.757758 207.24.115.20 > 195.210.86.88: icmp: echo reply (ttl 64, id 804)

16:16:12.757758 207.24.115.111 > 195.210.86.88: icmp: echo reply (ttl 60, id 12939)

16:16:12.757758 207.24.115.112 > 195.210.86.88: icmp: echo reply (ttl 60, id 3189)

Related Discussions:- A small isp requests your help

Explain what is a broadcast storm, QUESTION: (a) Ethernet has grown in ...

QUESTION: (a) Ethernet has grown in popularity in the recent years and is now used in LANs. Give three reasons for the success behind Ethernet. (b) Ethernet uses the CSMA/CD

What is the main security vulnerability of ipv4, Question: (a) What is...

Question: (a) What is the main security vulnerability of IPv4? (b) Which protocol can be used for secure remote login? (c) Distinguish between the transport and tunnel

Firewalls-information security, Firewalls A firewall in an information s...

Firewalls A firewall in an information security program that prevents specific types of information from moving between the outside world and the inside world. The firewall may

Network security, Network security has become much more complex than ever b...

Network security has become much more complex than ever before. New types and sources of network security threats, always-on high-speed Internet connections, wireless networking, a

Briefly explain the following security goals, (a) Briefly explain the fo...

(a) Briefly explain the following security goals provided by cryptography: confidentiality, authentication, integrity and non-repudiation. (b) State Kerckhoff's Princip

Ipv6 base header format, IPV6 BASE HEADER FORMAT: It has less informat...

IPV6 BASE HEADER FORMAT: It has less information than IPV4 message header. Next header shows to first extension message header. Flow label is partitioned into a TRAFFIC CLASS

Marketing, what are the participant of marketing channal?

what are the participant of marketing channal?

What is the role of an intrusion detection system, Problem: (a) What i...

Problem: (a) What is a firewall and which are its most important tasks? (b) What is the difference between default deny and default permit? Which advantages and disadvanta

X.509, Consider the details of the X.509 certificate shown below. a. Identi...

Consider the details of the X.509 certificate shown below. a. Identify the key elements in this certificate, including the owner''s name and public key, its validity dates, the nam

Vulnerability identification-risk management, Vulnerability Identification ...

Vulnerability Identification Specific avenues threat agents can exploit to attack an information asset are known as vulnerabilities. Examine how each threat can be generated and

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages