Your network has an external filtering router whose IP address is 10.10.10.1. What do the following firewall rules do? Protocol TCP TCP a) None of these Source Addr 10.10.10.1 ANY b) Prevent internal communication directly with the firewall a) c) Prevent external communication directly with the firewall d) Prevent all communication directly with the firewall b) Protocol ICMP Protocol ICMP c) None of these d) Question 6 The most common ICMP command is ping, which stands for Packet Internet Groper (yes, that's what it stands for). It determines if a host is unreachable on the network. To prevent attackers from using ping to identify some of your resources, you need to establish specific firewall rules regarding ICMP packets. The tables below are specific to ICMP. Which of the following blocks ping packets from locating internal hosts? Note that the columns are different for ICMP than what you've seen for TCP. Protocol ICMP Source Port ANY ANY Source Addr ANY Source Addr ANY Source Addr ANY Target Addr ANY 10.10.10.1 Target Addr 192.168.4.104 Target Addr 192.168.4.104 Target Addr 192.168.4.104 Target Port ANY ANY ICMP Msg Echo Reply ICMP Msg TTL ICMP Msg Echo Request Action DENY Action DENY Action DENY DENY Action DENY
Your network has an external filtering router whose IP address is 10.10.10.1. What do the following firewall rules do? Protocol TCP TCP a) None of these Source Addr 10.10.10.1 ANY b) Prevent internal communication directly with the firewall a) c) Prevent external communication directly with the firewall d) Prevent all communication directly with the firewall b) Protocol ICMP Protocol ICMP c) None of these d) Question 6 The most common ICMP command is ping, which stands for Packet Internet Groper (yes, that's what it stands for). It determines if a host is unreachable on the network. To prevent attackers from using ping to identify some of your resources, you need to establish specific firewall rules regarding ICMP packets. The tables below are specific to ICMP. Which of the following blocks ping packets from locating internal hosts? Note that the columns are different for ICMP than what you've seen for TCP. Protocol ICMP Source Port ANY ANY Source Addr ANY Source Addr ANY Source Addr ANY Target Addr ANY 10.10.10.1 Target Addr 192.168.4.104 Target Addr 192.168.4.104 Target Addr 192.168.4.104 Target Port ANY ANY ICMP Msg Echo Reply ICMP Msg TTL ICMP Msg Echo Request Action DENY Action DENY Action DENY DENY Action DENY
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
![Your network has an external filtering router whose IP address is 10.10.10.1. What
do the following firewall rules do?
Protocol
TCP
TCP
a) None of these
Source Addr
10.10.10.1
ANY
b) Prevent internal communication directly with the firewall
a)
c) Prevent external communication directly with the firewall
d) Prevent all communication directly with the firewall
b)
Protocol
ICMP
Protocol
ICMP
c) None of these
d)
Question 6
The most common ICMP command is ping, which stands for Packet Internet Groper
(yes, that's what it stands for). It determines if a host is unreachable on the network.
To prevent attackers from using ping to identify some of your resources, you need
to establish specific firewall rules regarding ICMP packets. The tables below are
specific to ICMP. Which of the following blocks ping packets from locating internal
hosts? Note that the columns are different for ICMP than what you've seen for TCP.
Protocol
ICMP
Source Port
ANY
ANY
Source Addr
ANY
Source Addr
ANY
Source Addr
ANY
Target Addr
ANY
10.10.10.1
Target Addr
192.168.4.104
Target Addr
192.168.4.104
Target Addr
192.168.4.104
Target Port
ANY
ANY
ICMP Msg
Echo Reply
ICMP Msg
TTL
ICMP Msg
Echo Request
Action
DENY
Action
DENY
Action
DENY
DENY
Action
DENY](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0844382d-a160-4633-90ba-cc3fe036bd02%2Fc2d992c5-417c-459e-a442-efb81ff24dfd%2Fmolh24d_processed.png&w=3840&q=75)
Transcribed Image Text:Your network has an external filtering router whose IP address is 10.10.10.1. What
do the following firewall rules do?
Protocol
TCP
TCP
a) None of these
Source Addr
10.10.10.1
ANY
b) Prevent internal communication directly with the firewall
a)
c) Prevent external communication directly with the firewall
d) Prevent all communication directly with the firewall
b)
Protocol
ICMP
Protocol
ICMP
c) None of these
d)
Question 6
The most common ICMP command is ping, which stands for Packet Internet Groper
(yes, that's what it stands for). It determines if a host is unreachable on the network.
To prevent attackers from using ping to identify some of your resources, you need
to establish specific firewall rules regarding ICMP packets. The tables below are
specific to ICMP. Which of the following blocks ping packets from locating internal
hosts? Note that the columns are different for ICMP than what you've seen for TCP.
Protocol
ICMP
Source Port
ANY
ANY
Source Addr
ANY
Source Addr
ANY
Source Addr
ANY
Target Addr
ANY
10.10.10.1
Target Addr
192.168.4.104
Target Addr
192.168.4.104
Target Addr
192.168.4.104
Target Port
ANY
ANY
ICMP Msg
Echo Reply
ICMP Msg
TTL
ICMP Msg
Echo Request
Action
DENY
Action
DENY
Action
DENY
DENY
Action
DENY
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