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Cisco Expressways are being deployed for Mobile and Remote Access. The Expressway-E internal interface (LAN1) IP is 192.168.100.10/24, and the external interface (LAN2) IP is 172.16.100.10/24.
The Expressway-C IP is 192.168.20.10/24. The default gateway for each subnet is the first useable address. How must the Expressway-E be configured to allow proper routing to the internal and external networks?
Suggested Answer: D
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23 comments · newest first
AS
Ashleigh
10 months ago
I can't believe the gateway is 172.16.100.1! Is that correct?
NA
Nakita
10 months ago
I think option A is the right choice!
GE
Gene
10 months ago
The Expressway-E internal IP is 192.168.100.10/24.
QU
Quiana
11 months ago
Wait, why would we use 172.16.100.1 as a gateway?
MO
Mollie
11 months ago
Definitely not B, that doesn't make sense.
SH
Shad
11 months ago
I’m leaning towards option D, but I’m not entirely confident. I remember something about needing to configure routes for both internal and external networks, and I hope I’m recalling that correctly.
LO
Louvenia
11 months ago
I’m a bit confused about the external interface. Shouldn't the gateway for LAN2 be 172.16.100.1? I think that might be important for routing to the external network.
HA
Halina
11 months ago
I remember practicing a similar question where we had to set up routing for different subnets. I feel like the static route should point to the 192.168.20.0/24 subnet since that's where the Expressway-C is.
LE
Lenna
12 months ago
I think the Expressway-E needs to have its gateway set to the first usable address in its subnet, which should be 192.168.100.1, but I'm not completely sure about the static routes.
ME
Merlyn
12 months ago
I'm not too confident about this one. There are a lot of details to consider, and I don't want to just guess. I'll need to carefully review the information provided and think through the routing requirements.
TE
Tess
1 year ago
I think I've got this! The answer is C - configure the Expressway-E with a gateway of 192.168.100.1 and a static route for the 172.16.100.0/24 subnet using the LAN2 interface.
AN
Annice
1 year ago
Okay, let's break this down step-by-step. The key is configuring the Expressway-E's gateways and static routes to properly route traffic between the internal and external networks.
LI
Lizette
1 year ago
Hmm, I'm a bit confused by the different subnets and interfaces. I'll need to review my notes on Expressway routing to make sure I understand this properly.
RE
Rene
1 year ago
This looks like a tricky routing question. I'll need to carefully analyze the network topology and IP addressing to determine the correct configuration.
JU
Julio
1 year ago
I think Twana's onto something. Why make it more complicated than it needs to be? As long as the gateways are configured correctly, the routing should just work.
CL
Claudio
1 year ago
But why do you think that?
YU
Yuki
1 year ago
I disagree, I believe the correct answer is C)
TW
Twana
1 year ago
Hmm, I'm not so sure. Wouldn't it be simpler to just use the same gateway for both interfaces? That way, you don't need any static routes.
FL
Floyd
1 year ago
User 1: I think option B is the correct one.
CL
Claudio
1 year ago
I think the answer is A)
TY
Ty
1 year ago
I agree with Kanisha. The gateway for the external interface should be the first usable address in the 172.16.100.0/24 subnet, and a static route is needed for the internal 192.168.100.0/24 subnet.
KA
Kanisha
1 year ago
Option A looks good to me. The Expressway-E needs to route to the internal network via the LAN1 interface, and to the external network via the LAN2 interface.
JO
Jose
1 year ago
User1: I think option A is the correct choice.