Don't know how to respond to question in 7.4.9 Live Lab: Configure First Hop Redundancy

[Bogdan_Kluger]

Regarding this section:

In the terminal, run arp -a and compare the output to the topology diagram.

Which of the IP addresses in the cache are router interfaces?
10.11.2.1
10.11.2.2
10.11.2.5
10.11.2.100
10.11.2.103
10.11.2.255

How do you respond to this question? I've checked the diagram and I can't find the logic... I don't have any clues on how to respond.

 

[Michael Schmitz]

helping without all information is not easy.
part of the Information shown.
For me that Lab is 7.8 in testoutapp.
the Terminal gives you back as result:
interface: 10.11.2.102
10.11.2.1 00-15-5d-01-98-03
10.11.2.2 00-15-5d-01-99-03
10.11.2.103 00-15-5d-01-66-64
10.11.2.255 (Broadcast)
224.* (4 different IPs)
239.255.255.250
255.255.255.255(Broadcast)

The Answers:
10.11.2.1
10.11.2.2
10.11.2.5 (not listed, not replying)
10.11.2.100 (not listed in arp)
10.11.2.103 (not listed in arp)
10.11.2.255 (Broadcast, can`t be)


The Graphic shows that 10.11.2.0/4 is Bulding A Floor 1 with DHCP and
.x ITAdmin
.y Office

common sense says the first or last available IP adress is the Router IP.
That would be 10.11.2.1-.
ipconfig says gateway is 10.11.2.5 (for whatever reason). (and not replying to ping as the next steps troubleshoot)
but since the Gateway is on two routers, you need their IP Addresses..

2.1 and 2.2 should be the IP addresses, since the MAC Address is except one Value the same (see above)

If you check Step 2, it also list the IPs that you should ping..

hope that helps.

 

[Paul Willy]

Hi Bogdan and Michael,
Guten tag.
As I do not have access to the lab, I will give you the basics of Hot Standby Routing Protocol in Cisco IOS.
HSRP Configuration on DIST1 and DIST2

The default gateway is not the address of either router. When standby is configured a MAC address is created that follows the standby IP address.
the Standby command is an interface command, either the VLAN number on a layer 3 switch, or the physical interface on a router i.e. Gig 0/1
The basic command standby (group number must match) IP address that is the default gateway.

DIST1
enable
configure terminal
interface vlan? (whatever vlan is 10.11.2.0, or the physical interface name)
standby 1 ip 10.11.2.5

DIST2
enable
configure terminal
interface vlan? (whatever vlan is 10.11.2.0)
standby 1 ip 10.11.2.5

additionally you could add to the config
standby 1 preempt
standby 1 track interface (typically where interface is the internet connection)

To view the HSRP status
show standby


I don't know if this helps, but I tried.