An administrator wants to check the total number of TCP sessions for an IP pool named INTERNAL. Which CLI command should the administrator use?a) diagnose firewall ippool-all stats INTERNALb) diagnose firewall ippool-all list INTERNAL
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Network Firewall Visualization File Options Help Network Traffic: DNS Database traffic Email VOIP Web traffic Chat Traffic Workstation traffic Active Attacks: OS Exploits Virus Trojan Syn Scan Ack Scan Web Attacks Trojan Reply System Scanned Successful Attack 192.168.1.* 192.168.2.* Speed: Congestion: Firewall Log: -FW1: Cloud to Chat:5222 TCP -FW1: Cloud to Chat:31337 TCP -FW1: Cloud to VOIP:38287 TCP -FW1: Cloud to DNS:53 UDP -FW1: Cloud to DNS:53 UDP -FW1: Work1 to Cloud:80 TCP -FW1: DNS to Cloud:53 UDP -FW1: VOIP to Cloud:38287 TCP -FW1: DNS to Cloud:53 UDP -FW1: Cloud to Database:3306 TCP -FW1: Cloud to Chat:31337 TCP -FW1: Cloud to DNS:53 UDP -FW1: DNS to Cloud:53 UDP -FW1: Cloud to VOIP:38287 TCP -FW1: Cloud to Web:31337 TCP -FW1: DNS to Cloud:53 UDP -FW1: DNS to Cloud:53 UDP -FW1: DNS to Cloud:53 UDP -FW1: Mail to Cloud:25 TCP Malicious Traffic Allowed 0 Legitimate Traffic Denied: 94
Akash M.
R1# show running-config interface GigabitEthernet0/0 no ip address ! interface GigabitEthernet0/0.5 encapsulation dot1Q 5 ip address 172.16.10.254 255.255.255.0 ! interface GigabitEthernet0/0.20 encapsulation dot1Q 20 ip address 172.16.20.254 255.255.255.0 ! Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem? A) Gi0/0 is not configured as a trunk port. B) The command interface GigabitEthernet0/0.5 was entered incorrectly. C) The encapsulation dot1Q 5 command contains the wrong VLAN. D) There is no IP address configured on the interface Gi0/0. E) The no shutdown command is not entered on subinterfaces.
Luke H.
(50 pts) Firewalls - iptables is a simple Linux-based firewall utility -- https://www.howtogeek.com/177621/the-beginners-guide-to-iptables-the-linux-firewall/. http://ipset.netfilter.org/iptables.man.html is a good place to find the options for iptables. Iptables is like most other Linux CLI utility programs in that the specific instruction executed is defined by the arguments applied to command line options. Using the iptables CLI, a user with administrator-level privileges can establish firewall rules to accept (ACCEPT) or reject (DROP) inbound (INPUT) and outbound (OUTPUT) traffic based on: - protocol (using the '-p' option), e.g. -p tcp - IP address (using the "-s" option), e.g., --s 10.2.0.2 - port number (using the --dport option), e.g., --dport http - interface (using the --i option), e.g., -i eth0 and other criteria. For instance, the command: iptables -A INPUT -s 10.10.10.X -j DROP specifies that the firewall is to reject all inbound traffic from 10.10.10.X. The -A option specifies the direction of the traffic that applies to the rule (INPUT or OUTPUT), while the -j option specifies the action, whether to ACCEPT or DROP. The iptables program also allows you to specify a default policy and view the current list of active firewall rules. For instance, iptables --policy INPUT DROP establishes a default reject policy for inbound traffic. More specific rules take precedence, but if no matching rule is found, then the default policy applies. Log in to your system (the same one from the first exercise) with the credentials provided and use the command line interface (CLI) for iptables to do the following: a. List the iptables firewall rules as they currently exist. What command did you issue to do this? What effect do the rules have? Save and submit the output. b. Add a rule to block echo requests (pings). What command did you issue to do this? Save and submit the output (an updated list of the firewalls).
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