Suppose a router has built up the routing table shown in Table 3.19. The router can deliver packets directly over interfaces 0 and 1, or it can forward packets to routers R2, R3, or R4. Assume the router does the longest prefix match. Describe what the router does with a packet addressed to each of the following destinations: (a) 128.96.171.92 (b) 128.96.167.151 (c) 128.96.163.151 (d) 128.96.169.192 (e) 128.96.165.121 Table 3.19 Routing Table for Exercise 56 SubnetNumber SubnetMask 255.255.254.0 255.255.254.0 128.96.170.0 128.96.168.0 128.96.166.0 128.96.164.0 (default) 255.255.254.0 255.255.252.0 NextHop Interface 0 Interface 1 R2 R3 R4
Suppose a router has built up the routing table shown in Table 3.19. The router can deliver packets directly over interfaces 0 and 1, or it can forward packets to routers R2, R3, or R4. Assume the router does the longest prefix match. Describe what the router does with a packet addressed to each of the following destinations: (a) 128.96.171.92 (b) 128.96.167.151 (c) 128.96.163.151 (d) 128.96.169.192 (e) 128.96.165.121 Table 3.19 Routing Table for Exercise 56 SubnetNumber SubnetMask 255.255.254.0 255.255.254.0 128.96.170.0 128.96.168.0 128.96.166.0 128.96.164.0 (default) 255.255.254.0 255.255.252.0 NextHop Interface 0 Interface 1 R2 R3 R4
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
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Transcribed Image Text:Suppose a router has built up the routing table shown in
Table 3.19. The router can deliver packets directly over interfaces 0
and 1, or it can forward packets to routers R2, R3, or R4. Assume
the router does the longest prefix match. Describe what the router
does with a packet addressed to each of the following destinations:
(a) 128.96.171.92
(b) 128.96.167.151
(c) 128.96.163.151
(d) 128.96.169.192
(e) 128.96.165.121
Table 3.19 Routing Table for Exercise 56
SubnetNumber
128.96.170.0
128.96.168.0
128.96.166.0
128.96.164.0
(default)
SubnetMask
255.255.254.0
255.255.254.0
255.255.254.0
255.255.252.0
NextHop
Interface 0
Interface 1
R2
R3
R4
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