exam questions

Exam 300-410 All Questions

View all questions & answers for the 300-410 exam

Exam 300-410 topic 1 question 570 discussion

Actual exam question from Cisco's 300-410
Question #: 570
Topic #: 1
[All 300-410 Questions]

SIMULATION
-




Guidelines
-

This is a lab item in which tasks will be performed on virtual devices.

• Refer to the Tasks tab to view the tasks for this lab item.
• Refer to the Topology tab to access the device console(s) and perform the tasks.
• Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
• All necessary preconfigurations have been applied.
• Do not change the enable password or hostname for any device.
• Save your configurations to NVRAM before moving to the next item.
• Click Next at the bottom of the screen to submit this lab and move to the next question.
• When Next is clicked, the lab closes and cannot be reopened.


Topology
-




Tasks
-

Troubleshoot and resolve the issues to achieve these goals:

1. Ensure that R1 reaches the prefix 10.6.66.6 without any single point of failure in the path. Do not use a static route or policy-based routing to accomplish this.
2. Ensure that R1 loopback 1 reaches to R6’s loopback 1 by following the path through R1, R3, R5 to R6 and vice versa. Use metric values K1 = 100000, K2=1, K3=255, K4=10, K5=1500 to modify the default metric in EIGRP if required. Do not use a route-map.
3. Ensure that on R3, prefix 10.0.56.6/32 uses the SP1 to route to the Internet, whereas prefix 172.16.12.2/32 uses the SP2 to route to the Internet. Do not use BGP to accomplish this. Use the pre-configured route-maps SP1 and SP2 and modify to accomplish the task if required. Use the ping and trace commands from R6 and R2 to prefixes 209.165.202.132 and 209.165.202.128, respectively to verify the results.

Show Suggested Answer Hide Answer
Suggested Answer:

Comments

Chosen Answer:
This is a voting comment (?). It is better to Upvote an existing comment if you don't have anything to add.
Switch to a voting comment New
junya_kimura
1 month, 3 weeks ago
I had this question on exam. same topology but different question. I am so confused. 1. verify that R2 can reach the prefix 10.5.55.5 without a single point of failure in the path. Do not use static routes or route maps for this 2. follow the path in the order of R1, R5, R6, or vice versa, and verify that R1 loopback 0 reaches R6 loopback 0. If necessary, change the default EIGRP metric using metric values K1 = 100000, K2 = 1, K3 = 255, K4 = 10, and K5 = 1500. Do not use route maps. 3. in R3, ensure that the prefix 10.0.0.0/8 routes to the Internet using SP1 and the prefix 172.16.0.0/12 routes to the Internet using SP2. Do not use BGP for this. Use the preconfigured route maps SP1 and SP2 and modify them to perform the task as needed; use ping and trace commands from R5 and R1 to verify results.
upvoted 1 times
...
jabal93
3 months, 4 weeks ago
any thoughts on how we accomplish task-3 this without BGP ?
upvoted 1 times
jabal93
3 months, 4 weeks ago
according to the question you can't use BGP so i used PBR on R3 interfaces after i redistributed BGP on both OSPF and EIGRP. Please share your thoughts on the below, R3(config-router)#do sh run | sec ospf| eigrp router eigrp 10 network 0.0.0.0 redistribute ospf 1 metric 100000 1 255 10 1500 redistribute bgp 5500 metric 100000 1 255 10 1500 distance 120 10.0.35.5 0.0.0.0 eigrp router-id 33.33.33.33 router ospf 1 router-id 3.3.3.3 priority 10 redistribute eigrp 10 subnets redistribute bgp 5500 subnets network 192.168.0.0 0.0.255.255 area 0 network 0.0.0.0 255.255.255.255 area 0 ================ R3(config)#int e0/1 R3(config-if)#ip policy route-map SP1 R3(config-if)#int e0/0 R3(config-if)#ip policy route-map SP2
upvoted 1 times
bk989
3 months, 2 weeks ago
did this config get you a loop when pinging from R1 to R6 loopback, I cant re-create the loop
upvoted 1 times
...
...
...
jabal93
3 months, 4 weeks ago
I replicate the SIM with the exact subnets, this is task 1-2 R3#sh run | sec rou no ip source-route router eigrp 10 network 0.0.0.0 redistribute ospf 1 metric 100000 1 255 10 1500 distance 120 10.0.35.5 0.0.0.0 eigrp router-id 33.33.33.33 router ospf 1 router-id 3.3.3.3 priority 10 redistribute eigrp 10 subnets network 192.168.0.0 0.0.255.255 area 0 network 0.0.0.0 255.255.255.255 area 0 ================= R4#sh run | sec rou router eigrp 10 network 0.0.0.0 redistribute ospf 1 metric 100000 1 255 10 1500 eigrp router-id 44.44.44.44 router ospf 1 router-id 4.4.4.4 redistribute eigrp 10 subnets network 0.0.0.0 255.255.255.255 area 0 R4#
upvoted 1 times
jabal93
3 months, 4 weeks ago
Task-3 R3#sh run | sec acc|route-m route-map SP-1 permit 10 match ip address 10 set ip next-hop 209.165.201.2 route-map SP-1 permit 20 route-map IPS-2 permit 10 match ip address 11 set ip next-hop 209.165.200.226 route-map IPS-2 permit 20 access-list 10 permit 10.0.56.6 access-list 11 permit 172.16.12.2 R3#
upvoted 3 times
RK139
3 days, 14 hours ago
after configuring the task 3 as per your configuration, if i ping from R6 to R1...packets will go to internet.it wont go to R1. but in routing table in R6 route will show from R6-R5-R3-R1. Am i correct?
upvoted 1 times
...
...
jabal93
3 months, 4 weeks ago
Its best practice to put specific source ip address when you are changing the default distance, hence # distance 120 10.0.35.5 0.0.0.0 10.0.35.5 === R5 ip address on eth0/0
upvoted 1 times
...
jabal93
3 months, 4 weeks ago
Sorry guys, changing the distance will not affect the External routes, we need to change the metrics for EIGRP like the task advice this is the configuration below, i just added one ZERO on the bandwidth for R3. R3-HQ(config-router)#do sh run | sec eig router eigrp 10 network 0.0.0.0 redistribute ospf 1 metric 1000000 1 255 10 1500 R4#sh run | sec eig router eigrp 10 network 0.0.0.0 redistribute ospf 1 metric 100000 1 255 10 1500 R3-HQ(config-router)#do sh run | sec eig router eigrp 10 network 0.0.0.0 redistribute ospf 1 metric 1000000 1 255 10 1500
upvoted 1 times
...
...
bf10690
4 months, 1 week ago
I have had a few variants of this lab on my tests. They have changed some metrics but overall the test is more or less the same. But please be aware that the access lists referenced by SP1 and SP2 sometimes (always?) contain block statements. So you have to recreate those with the correct permit statements. One time I needed to change the AD of RIP on R4 as well, instead of changing the metric.
upvoted 3 times
...
bk989
5 months ago
I figured it out. R4 mutually redistributes EIGRP and OSPF into eachother before R3 does redistribution. After R3 does redistribution R3 has 2 paths to 10.6.66.6 network. R3 chooses EIGRP as it has lower administrative distance. However in the simlet we use distance command to make EIGRP distance higher, than external OSPF distance of 110. In my lab this is what it looks like, for EIGRP 1 and OSPF 1 process (I did not use process number of 10): router eigrp 1 network 10.0.35.3 0.0.0.0 network 10.3.3.0 0.0.0.255 network 10.3.33.0 0.0.0.255 redistribute bgp 1 metric 1 1 1 1 1 distance 125 0.0.0.0 255.255.255.255 66
upvoted 2 times
bk989
5 months ago
R4 mutually redistributes before R3 does: router eigrp 1 network 10.0.46.4 0.0.0.0 network 10.4.4.0 0.0.0.255 network 10.4.44.0 0.0.0.255 redistribute ospf 1 metric 1 1 1 1 1 redistribute rip metric 1000000 1 255 10 1500 distance 125 0.0.0.0 255.255.255.255 66 eigrp router-id 4.4.4.4 Now because R3 has distance 125 command to 10.6.66.6, we see R3 chooses the path to R4, on the other side of the network. R3#show ip route <...........> D 10.5.5.0/24 [90/409600] via 10.0.35.5, 00:22:17, Ethernet0/1 D 10.5.55.0/24 [90/409600] via 10.0.35.5, 00:22:17, Ethernet0/1 O E2 10.6.6.0/24 [110/20] via 172.16.13.1, 00:05:05, Ethernet0/0 O E2 10.6.66.0/24 [110/20] via 172.16.13.1, 00:05:05, Ethernet0/0 Notice that for the 10.5.55.0/24 loopback of R5, R3 still chooses EIGRP 1 as it has lower AD, but since 10.6.66.0/24 has distance of 125 for EIGRP, R3 chooses the path to R4
upvoted 1 times
bk989
5 months ago
The same is true for R1 as now R1 has best path through R4, as R3 never advertises the 10.6.66.6 route into OSPF from EIGRP distance 125, as it already has a route to 10.6.66.6 distance 110. R1#trace 10.6.66.6 source L0 Type escape sequence to abort. Tracing the route to 10.6.66.6 VRF info: (vrf in name/id, vrf out name/id) 1 172.16.12.2 6 msec 1 msec 5 msec 2 172.16.24.4 6 msec 5 msec 5 msec 3 10.0.46.6 6 msec 5 msec 5 msec
upvoted 1 times
bk989
5 months ago
The above traceroute goes through R4 which is longer path. The question asks for R1 -->R3 --> R5 --> R6. When we issue this command on R3: R3(config)# R3(config-router)#no distance 125 0.0.0.0 255.255.255.255 66 Now R3 has 10.6.66.6 as a better route in eigrp compared to OSPF E2 route of R4, and redistributes it into OSPF 1 and installs it into LSDB. Now R3 has better route: R3#show ip ro *Jul 16 22:22:07.702: %SYS-5-CONFIG_I: Configured from console by console R3#show ip route <.......> D 10.5.5.0/24 [90/409600] via 10.0.35.5, 00:02:15, Ethernet0/1 D 10.5.55.0/24 [90/409600] via 10.0.35.5, 00:02:15, Ethernet0/1 D 10.6.6.0/24 [90/51379200] via 10.0.35.5, 00:02:15, Ethernet0/1 D 10.6.66.0/24 [90/51379200] via 10.0.35.5, 00:02:15, Ethernet0/1 And now R3 installs this into its OSPF LSDB and advertises it to R1.
upvoted 1 times
bk989
5 months ago
Now R1 has the route advertised from R3. And the traceroute: R1#trace 10.6.66.6 Type escape sequence to abort. Tracing the route to 10.6.66.6 VRF info: (vrf in name/id, vrf out name/id) 1 172.16.13.3 20 msec 6 msec 5 msec 2 10.0.35.5 1 msec 6 msec 6 msec 3 10.0.56.6 6 msec 5 msec 5 msec
upvoted 1 times
bk989
5 months ago
here is my config if you want to practice: R3: router eigrp 1 network 10.0.35.3 0.0.0.0 network 10.3.3.0 0.0.0.255 network 10.3.33.0 0.0.0.255 redistribute bgp 1 metric 1 1 1 1 1 eigrp router-id 3.3.3.3 ! router ospf 1 router-id 3.3.3.3 redistribute eigrp 1 subnets redistribute bgp 1 subnets network 10.3.3.0 0.0.0.255 area 0 network 10.3.33.0 0.0.0.255 area 0 network 172.16.13.3 0.0.0.0 area 0 default-information originate ! router bgp 1 bgp log-neighbor-changes redistribute eigrp 1 redistribute ospf 1 neighbor 209.165.200.226 remote-as 2 neighbor 209.165.201.1 remote-as 2 (the bgp is for the SP neighbors)
upvoted 1 times
...
...
...
...
...
...
bk989
5 months ago
I cannot get the loop to work properly, as it did on the exam. When I pinged 10.66.6.6 from R1 source Loopback0/1 it goes to R6 without a loop. I am mutually redistributing on both R3 and R4, but this causes suboptimal routing, and not a routing loop ~ any suggestions?
upvoted 1 times
jabal93
3 months, 4 weeks ago
check my config
upvoted 1 times
...
...
Ivan_AGC
5 months, 1 week ago
I got this SIM in my Exam, please pay attention to the ACL in my test the ACLs were already created and matched in the route map. The ACLs have a Deny for the networks 172.0.0.0 and 10.0.0.0. So you need to delete it before starting the configuration.
upvoted 2 times
jabal93
3 months, 4 weeks ago
Thank you
upvoted 1 times
...
...
chaba7654321
7 months, 2 weeks ago
Had this lab on the exam, pretty much the same - and the provided answer in config is pretty accurate. I had a different metric set under eigrp distance for 0.0.0.0 255.255.255.255, but removing it fixed the issue so not too important Used traceroute to troubleshoot flow as suggested
upvoted 3 times
...
cloud29
7 months, 3 weeks ago
Is that provided answer is correct?
upvoted 1 times
...
LooserDragon
8 months ago
Be aware, because they can have different metrics on the routers on the real sim. Ensure that R6 takes the route through R5 instead of R4 (because the PBR won’t work that way). If it does, you can configure the link between R6 and R4 with lower bandwith OR the link between R6 and R5 with higher.
upvoted 2 times
jabal93
3 months, 4 weeks ago
That's what has been bothering me, how we supposed to tunnel the traffic for R6 through R5 in order to hit our applied PBR on R3, after we done forcing the traffic inside EIGRP domain to exit through R4... thanks bruh adjusting the bandwidth has passed my mind. hhh
upvoted 1 times
...
...
Bombbear_W
8 months ago
So glad to see this simulation is finally added. Well done examtopics team and appreciated it.
upvoted 3 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
Loading ...
exam
Someone Bought Contributor Access for:
SY0-701
London, 1 minute ago