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When configuring ISAKMP for IKEv1 Phase1 on a Cisco IOS router, an administrator needs to input the
command crypto isakmp key cisco address 0.0.0.0. The administrator is not sure what the IP addressing in this command issued for. What would be the effect of changing the IP address from 0.0.0.0 to 1.2.3.4?
Suggested Answer: C
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34 comments · newest first
JE
Jennie
11 months ago
C is also a possibility, but B seems more accurate.
MY
Myra
11 months ago
I thought it was about the key server, not just access.
MI
Miss
11 months ago
Wait, is it really that straightforward?
DI
Diego
11 months ago
Definitely B! Only 1.2.3.4 will be allowed.
BE
Bernardo
12 months ago
Changing to 1.2.3.4 restricts access to that specific IP.
MA
Martina
12 months ago
I feel like this is related to the concept of defining peers for IKEv1, but I can't recall if it means only that specific IP can connect or if it allows more.
LE
Leonida
1 year ago
I’m a bit confused about the role of the IP address here. Does it really affect how the key is validated or just who can connect?
JO
Joanna
1 year ago
I think if you change the IP to 1.2.3.4, it restricts the connection to only that address, similar to a practice question we did about access lists.
LA
Lai
1 year ago
I remember that the IP address in the command specifies which remote peer can use the key, but I'm not entirely sure what happens if I change it.
GL
Glendora
1 year ago
Wait, I'm a bit confused. Isn't the 0.0.0.0 address used to specify a wildcard, so that the key can be used for any remote peer? I'll need to double-check that in the documentation.
LU
Ludivina
1 year ago
I think the IP address is used to specify the remote peer that the shared secret key is for. Changing it would restrict the connection to only that specific IP address. I'm pretty confident about that.
LO
Lou
1 year ago
Okay, let's see. The IP address in that command must be specifying something important, but I'm not sure exactly what. I'll have to review my notes on IKEv1 Phase1 configuration.
CR
Cristen
1 year ago
Hmm, this ISAKMP configuration seems a bit tricky. I'll need to think through the purpose of that IP address parameter carefully.
AL
Allene
1 year ago
Based on my understanding, the 0.0.0.0 address is used to specify that the pre-shared key applies to any remote peer. Changing it to 1.2.3.4 would limit the connection to only that specific IP address. I think option B is the correct answer.
SE
Selma
1 year ago
I'm a bit confused on this one. The 0.0.0.0 address seems to be a wildcard, but I'm not sure what exactly that means in the context of ISAKMP. I'll have to review my notes on that.
MI
Micah
1 year ago
Okay, let's see here. The IP address in that command is specifying the remote peer that the pre-shared key is for. Changing it would restrict the connection to that specific IP address.
EU
Eun
1 year ago
Hmm, this looks like a tricky ISAKMP configuration question. I'll need to think carefully about the purpose of that IP address parameter.
KA
Kattie
1 year ago
I'm just going to remember that the IP address in the command is used to specify the remote peer. That way, I won't have to worry about any 'crypto validation authorities' or other cryptic terms. Option B is the one.
TA
Tammara
1 year ago
User3: So, option B is the correct one then.
AB
Abel
1 year ago
User2: Yeah, changing it to 1.2.3.4 would mean only allowing the remote connection from that IP.
RU
Ruth
1 year ago
User1: I think the IP address in the command is for specifying the remote peer.
DA
Darell
1 year ago
Wait, so the IP address isn't just there for show? I've been configuring my routers all wrong! Well, at least I know the right answer now. Option B it is.
LO
Lorrie
1 year ago
Haha, I bet the person who wrote this question was having a laugh at our expense. 'Crypto validation authority'? Really? Option B is clearly the way to go here.
YE
Yesenia
2 years ago
Hmm, I thought the IP address was just a placeholder or something. Guess I need to brush up on my IKEv1 knowledge. At least I now know the right answer is B.
TR
Tracey
1 year ago
User1: No problem, always happy to help with networking questions.
VA
Vallie
1 year ago
User3: Thanks for clarifying that. I'll remember it for next time.
TO
Tommy
1 year ago
User2: Yeah, it can be confusing. But the correct answer is B.
JA
Janna
1 year ago
User1: Don't worry, I used to think the same thing about the IP address.
VA
Vallie
2 years ago
The IP address in the command is used to specify the remote peer's IP address that the pre-shared key will be associated with. Changing it to 1.2.3.4 will limit the connection to only that IP address, so option B is correct.
JA
Jame
1 year ago
B) The remote connection will only be allowed from 1.2.3.4
TH
Theron
1 year ago
A) The key server that is managing the keys for the connection will be at 1.2.3.4
JO
Josefa
2 years ago
I'm not sure about that. Maybe changing the IP address could affect the crypto validation authority instead.
CH
Cherri
2 years ago
I agree with Juan. It makes sense that the key server managing the keys would be at that specific IP.
JU
Juan
2 years ago
I think changing the IP address to 1.2.3.4 will restrict the remote connection to only that IP.