Given the following topology of a network, the router Node 3 connects the two subnets together: Nodes 1 and 2 are 'inside' of the subnet neta, Nodes 4 and 5 are 'outside' of neta and Node 3 with a firewall is the gateway of neta. The two networks have the prefix 192.168 as the first two octets in their IP addresses, e.g, Node 1 has IP address 192.168.1.11. eth1: 1.11 eth1: 2.21 4 2 eth1: 1.12 neta eth 1: 1.1 3 eth2: 2.1 netb 5 eth1: 2.22 (i) Suppose in the firewall on Node 3 the default policy is ACCEPT. Write packet filtering rules for the following goal. Suppose Node 5 hosts a web server supporting both HTTP and HTTPs. Set rules in Node 3 that prevents Node 2 from browsing any web pages at Node 5. Now change in Node3 the default policy as DROP and write packet filtering rules for the following goal. (ii) Allow all nodes in the subnet neta to browsing HTTP pages hosted at Node 5. (iii) Allow hosts in noth to SSH into Nodel
Given the following topology of a network, the router Node 3 connects the two subnets together: Nodes 1 and 2 are 'inside' of the subnet neta, Nodes 4 and 5 are 'outside' of neta and Node 3 with a firewall is the gateway of neta. The two networks have the prefix 192.168 as the first two octets in their IP addresses, e.g, Node 1 has IP address 192.168.1.11. eth1: 1.11 eth1: 2.21 4 2 eth1: 1.12 neta eth 1: 1.1 3 eth2: 2.1 netb 5 eth1: 2.22 (i) Suppose in the firewall on Node 3 the default policy is ACCEPT. Write packet filtering rules for the following goal. Suppose Node 5 hosts a web server supporting both HTTP and HTTPs. Set rules in Node 3 that prevents Node 2 from browsing any web pages at Node 5. Now change in Node3 the default policy as DROP and write packet filtering rules for the following goal. (ii) Allow all nodes in the subnet neta to browsing HTTP pages hosted at Node 5. (iii) Allow hosts in noth to SSH into Nodel
Related questions
Question
Transcribed Image Text:Given the following topology of a network, the router Node 3 connects the two subnets
together: Nodes 1 and 2 are 'inside' of the subnet neta, Nodes 4 and 5 are 'outside' of neta
and Node 3 with a firewall is the gateway of neta. The two networks have the prefix 192.168
as the first two octets in their IP addresses, e.g, Node 1 has IP address 192.168.1.11.
eth1: 1.11
eth1: 2.21
1
2
eth1: 1.12
neta
eth 1: 1.1
3
eth2: 2.1
netb
4
5
eth1: 2.22
(i) Suppose in the firewall on Node 3 the default policy is ACCEPT. Write packet
filtering rules for the following goal.
Suppose Node 5 hosts a web server supporting both HTTP and HTTPs. Set rules in Node 3
that prevents Node 2 from browsing any web pages at Node 5.
Now change in Node3 the default policy as DROP and write packet filtering rules for the
following goal.
(ii) Allow all nodes in the subnet neta to browsing HTTP pages hosted at Node 5.
(iii) Allow hosts in netb to SSH into Nodel.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps
