Exam 300-101 topic 2 question 157 discussion

Actual exam question from Cisco's 300-101

Question #: 157
Topic #: 2

You are a network engineer with ROUTE.com, a small IT company. ROUTE.com has two connections to the Internet; one via a frame relay link and one via an EoMPLS link. IT policy requires that all outbound HTTP traffic use the frame relay link when it is available. All other traffic may use either link. No static or default routing is allowed.
Choose and configure the appropriate path selection feature to accomplish this task. You may use the Test Workstation to generate HTTP traffic to validate your solution.

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Suggested Answer: Answer: We need to configure policy based routing to send specific traffic along a path that is different from the best path in the routing table.
Here are the step by Step Solution for this:
1) First create the access list that catches the HTTP traffic:
R1(config)#access-list 101 permit tcp any any eq www
2) Configure the route map that sets the next hop address to be ISP1 and permits the rest of the traffic:
R1(config)#route-map pbr permit 10
R1(config-route-map)#match ip address 101
R1(config-route-map)#set ip next-hop 10.1.100.2

R1(config-route-map)#exit -
R1(config)#route-map pbr permit 20
3) Apply the route-map on the interface to the server in the EIGRP Network:

R1(config-route-map)#exit -

R1(config)#int fa0/1 -
R1(config-if)#ip policy route-map pbr

R1(config-if)#exit -

R1(config)#exit -

First you need to configure access list to HTTP traffic and then configure that access list. After that configure the route map and then apply it on the interface to the server in EIGRP network.

by Nemanja at Feb. 10, 2020, 6:44 p.m.

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Nemanja

5 years, 4 months ago

The following line is sufficient and should bot be configured: R1(config)#route-map pbr permit 20 Why? Because all the not-HTTP traffic should be routed according to the route table itself. In order to check this you can use the Simulation at the digitaltut and in the end test a "debug route-map". That way it could be seen if not-HTTP traffic is taking the route according to the route table or using the PBR mechanism (which should not be used).

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