Exam 70-741 topic 1 question 160 discussion

The answer is New-NetRoute. "The New-NetRoute cmdlet creates an IP route in the IP routing table. Specify the destination prefix and specify an interface by using the interface alias or the interface index. IP routing is the process of forwarding a packet based on the destination IP address. Routing occurs at TCP/IP hosts and at IP routers. The sending host or router determines where to forward the packet. To determine where to forward a packet, the host or router consults a routing table that is stored in memory. When TCP/IP starts, it creates entries in the routing table. You can add entries either manually or automatically."

the answer should be : D. Set-NetNeighbor

Got this in my exam(2020/12/14)

D. Set-NetNeighbor Explanation: https://technet.microsoft.com/en-us/itpro/powershell/windows/nettcpip/set-netneighbor The Set-NetNeighbor cmdlet modifies a neighbor cache entry. The neighbor cache maintains information for each on-link neighbor, including the IP address and the associated link-layer address. You can modify only neighbor cache entries that are in a permanent state on interfaces that have link-layer addresses. Use this cmdlet to modify the link-layer address and policy store setting of a neighbor cache entry. Set-NetNeighbor -InterfaceIndex -IPAddress “10.10.1.6” -LinkLayerAddress After performing the above “Set-NetNeighbor”, the developer’s client computer will be redirected to the development’s server.

New-NetRoute is correct; Set-NetNeighbor implies setting just a layer 2 path/remaining on the same subnet, but the target server is on a different subnet, meaning the path traverses a layer 3 device and requires layer 3 routing. The problem is the current route points to the wrong gateway (i.e., the gateway of the router connected to the production network).

Answer is correct: B. New-NetRoute

Sharing my thought. All of the websites are saying the answer is B (New-NetRoute). But .. I am guessing the answer is D (Set-NetNeighbor) . Reason.... First of all, DEV and PROD are in same IP range . Question says the developer guy gets connection on PROD network. Means routing is available from CLIENT network to PROD network. But he wants to get connection in DEV network. " New-NetRoute -DestinationPrefix "10.0.0.0/24" -InterfaceIndex 12 -NextHop 192.168.0.1 " > it points to the whole network. Still the client PC wont understand what is the destination. 10.0.0.0/24 not pointing any specific server to connect with. " Set-NetNeighbor -InterfaceIndex 12 -IPAddress "192.168.0.5" -LinkLayerAddress "00-00-12-00-00-ff" But when i am using the MAC here, the destination is always defined and fixed. When the client will hit this specific ip his connection will ONLY redirected to a device that have only this MAC ADDRESS... So, if i put a MAC of DEV Server here, client PC will always get connected with this server .... Overall, pointing to a whole network like "10.0.0.0/24" not seems like a wise / working idea to point traffic....

The development and production network must be in two different physical networks, since having the same network range would produce IP duplication, therefore there would be IP conflicts and none of the networks would work well. Therefore, if they are in two different physical networks to access each one, a separate network card is required. With New-Netroute, we can force the network adapter to direct the connection to a specific IP.

Correct - Set-NetNeighbor -InterfaceIndex 1 -IPAddress "10.10.1.6" -LinkLayerAddress "AA-BB-CC-DD-EE-FF" = sets the MAC address for the dest IP. Not New-Neighbor as neighbor relationship (IP-MAC mapping) already exists and points to production device's MAC, this needs to be changed. Not New-NetRoute as routing is done based on IP but dest IP is same for both dev and prod devices. Route already exists as client can reach prod device.

I think the answer is Set-NetNeighbor bcos it addresses the issue of the same IP address 10.10.1.6 but different physical device ie. MAC address

I'm pretty sure the good answer is " Set-NetNeighbor" because the scenario says that they have 3 subnets without any different gateway mentionned. Without a different gateway, we can specify a different route for the same subnet to the same gateway So, the better answer with this problem with these informations is to set the neighbor

The New-NetRoute cmdlet creates an IP route in the IP routing table.Specify the destination prefix, and specify an interface by using the interface alias or the interface index.IP routing is the process of forwarding a packet based on the destination IP address. the answer is correct New-netroute

PS C:\>New-NetRoute -DestinationPrefix "10.0.0.0/24" -InterfaceIndex 12 -NextHop 192.168.0.1 PS C:\>Get-NetRoute | Format-List -Property * The answer seems correct

I Agree... the answer should be B.New-NetRoute

If he could not connect at all, that would be a clue that the route is missing. He connects to a different computer? same address?