QID:AR143 has wrong answer

[GreaterZen]

Hi forum support / admin

According to QID:AR143 explanation end paragraph:

"Manually configuring an ipv6 address on router 2 will it an address on the same subnet as router  1. This will allow router 2 to successfully telnet." Yet the answer correct answer is "permit ip any any on access-lit egress." I would add pictures if i could. Nonetheless, please fix.

Thanks,
GreaterZen

[help_desk]

The answer has been corrected. Thank you!

[chewosaurus]

Hi forum support / admin

According to QID:AR143 explanation end paragraph:

"Manually configuring an ipv6 address on router 2 will it an address on the same subnet as router  1. This will allow router 2 to successfully telnet." Yet the answer correct answer is "permit ip any any on access-lit egress." I would add pictures if i could. Nonetheless, please fix.

Thanks,
GreaterZen

Hey, I was confused with this too I did a deep dive to figure out what was going on here maybe it's worth noting.

So, the explanation says that R2 cannot configure an IPV6 address because it is configured with "ipv6 nd ra supress". This isn't the case 
"ipv6 nd ra supress" basically just means "stop talking". and "ipv6 address auto config" means keep listening.

The point I'm making is that, the supress command has no effect on R2 getting an ipv6 address it only has an effect on the outgoing RA messages from R2. NOT incoming RA messages from R1.

The real problem here is that R1 isn't configured correctly to sent RAs to R2 (to allow R2 to autoconfig an ipv6 address). 
Here's an example of what R1 should like like if it was configured correctly so R2 can pickup an ipv6 address:

interface Gig0/0
ipv6 address 2001B8::1/64
ipv6 nd prefix 2001B8::/64
ipv6 nd ra interval 30


Hope that clears up some confusion, I definitely confused myself

[greaterzen1]

Hi forum support / admin

According to QID:AR143 explanation end paragraph:

"Manually configuring an ipv6 address on router 2 will it an address on the same subnet as router  1. This will allow router 2 to successfully telnet." Yet the answer correct answer is "permit ip any any on access-lit egress." I would add pictures if i could. Nonetheless, please fix.

Thanks,
GreaterZen

Hey, I was confused with this too I did a deep dive to figure out what was going on here maybe it's worth noting.

So, the explanation says that R2 cannot configure an IPV6 address because it is configured with "ipv6 nd ra supress". This isn't the case 
"ipv6 nd ra supress" basically just means "stop talking". and "ipv6 address auto config" means keep listening.

The point I'm making is that, the supress command has no effect on R2 getting an ipv6 address it only has an effect on the outgoing RA messages from R2. NOT incoming RA messages from R1.

The real problem here is that R1 isn't configured correctly to sent RAs to R2 (to allow R2 to autoconfig an ipv6 address). 
Here's an example of what R1 should like like if it was configured correctly so R2 can pickup an ipv6 address:

interface Gig0/0
ipv6 address 2001B8::1/64
ipv6 nd prefix 2001B8::/64
ipv6 nd ra interval 30


Hope that clears up some confusion, I definitely confused myself

Thanks for adding that. However, I am more confused because we don't have the question. Nonetheless, I feel this information you've added is very resource. Knowing cisco they may add something related to this.