I found at least 2 commands + many commands in license management that were not available which is mentioned in the book. Would it be helpful to create a topic on this. Unfortunately, the 2 commands I found was I think very important commands which hindered my study greatly.
Since I am using Packet Tracer, not sure if this is not available. I have couple of router and switch at home, I am thinking out to fire this up to see if actual hardware has those.
Setting mac address timeout.
- CCNA 100-105: CH7, P161
It tells to use the following mac address:
Show mac address-table aging-time
On packet tracer, tried on 2950T-24 and 2960, none of them had this command.
Switch>
Switch>enable
Switch#show mac-add
Switch#show mac-address-table ?
dynamic dynamic entry type
interfaces interface entry type
static static entry type
<cr>
Switch#show mac-address-table ag?
% Unrecognized command
Switch#show mac-address-table ag
Second one was regarding for setting dhcp helper ip (relay) address for ipv6 which was also available. I will add for detail.
I am sure how many mismatches like this out there in the Cisco product portfolio, perhaps hundred or thousands.
remember packet-tracer is a simulation, not all commands are implemented
use GNS3 or real hardware for the real life experience.
I looked at GNS3 but finding the router/switch images was a nightmare so gave it up.
Quote from: weasleman on May 18, 2017, 10:23:41 AM
I looked at GNS3 but finding the router/switch images was a nightmare so gave it up.
Yes i made an attempt at gns3, it was nightmware. Packet tracer was breeze. I will try on real hardware.
Quote from: ggnfs000 on May 18, 2017, 06:10:32 PM
Quote from: weasleman on May 18, 2017, 10:23:41 AM
I looked at GNS3 but finding the router/switch images was a nightmare so gave it up.
Yes i made an attempt at gns3, it was nightmware. Packet tracer was breeze. I will try on real hardware.
It's quite simple once you have the images. Spend some time looking at youtube videos. Check out GNS3vault too, there's a lot of info and exercises there
tried on physical n5k switch, yes there is, so at least this one myth is busted:
The only question remains is how come this is not available on packet tracer, is there any special edition needed? unlock features etc,
n5k-2# show mac address-table ?
<CR>
> Redirect it to a file
>> Redirect it to a file in append mode
address Address
aging-time Display Aging Time (configured or default)
count Display only the count of MAC entries
dynamic Display Dynamic Entries
interface Interface
multicast Show Multicast MAC Table entries
notification Display Notification Information
static Display Static Entries
vlan VLAN
| Pipe command output to filter
n5k-2# show mac address-table aging-time
Vlan Aging Time
----- ----------
291 300
219 300
200 300
119 300
118 300
117 300
116 300
115 300
114 300
113 300
112 300
111 300
110 300
4040 300
1 300
We told you once already. Packet tracer is my-first-router training wheels simulation, use anything that runs real IOS. Griping about packet tracer is meaningless
BTW don't you work for Cisco??!?!?! What the heck are you doing with packet tracer?
Packet tracer is what it is, no more. It won't do all the cool kid stuff that GNS3 or VIRL will do.
Yes i would like to play with GNS3 but like Simonv said you need images. Without the images well useless.
Quote from: weasleman on May 22, 2017, 08:48:59 AM
Yes i would like to play with GNS3 but like Simonv said you need images. Without the images well useless.
True.
Our policy here is that we don't discuss where to get images without going directly to Cisco. Many of our members here have sensitive security clearances and they would not be able to participate here if we were to discuss how to acquire potentially stolen or illegally copied software.
GNS3 Has the same take on it: https://www.youtube.com/watch?v=_IgXj7wAiJU
Now, if you purchase a second-hand router or switch, you can copy the IOS off that device and use that as an image in GNS3. That gets you an image you can use multiple times in GNS3 for some really crazy setups and gets you some actual hardware to use for your lab for more straightforward setups.
I agree thats why i never asked where to get images. Its different if you work in the industry as you will most probably have a support login to cisco and can use these for testing purposes. But us beginers have to use what we have available that just happens to be Packet tracer.
Also you never told me the second command to
clear ip ospf hello-interval
i know about
no IP OSPF hello interval what is the other. (This is driving me insane as i cannot find the answer)
:twitch: :twitch: :twitch: :twitch:
Quote from: weasleman on May 22, 2017, 11:17:29 AM
no IP OSPF hello interval
:twitch: :twitch: :twitch: :twitch:
you want to disable 'hello messages' for OSPF?
What two different commands will return the router to its default state
This was one of the question i think it was directed at the hello-interval
Should be easy to find an IOS online, if you can't for whatever reason you can just spend $30 on a device on ebay and pull the IOS off it once it comes
http://www.ebay.com/itm/Cisco-Systems-3700-Series-Model-3725-Port-Managed-Router-/201902060620?hash=item2f024cf44c:g:kDsAAOSw5UZY~Bjl
You can almost certainly find a 2600 or a different 3725 cheaper if you look.
Quote from: weasleman on May 22, 2017, 01:03:08 PM
What two different commands will return the router to its default state
This was one of the question i think it was directed at the hello-interval
running OSPF and wiping a router are two completely different things, not associated.
'write erase' would wipe the router startup-configuration, and return the router to it's default state. doing this in production is not recommended.
Quote from: ristau5741 on May 22, 2017, 03:24:32 PM
'write erase' would wipe the router startup-configuration, and return the router to it's default state. doing this in production is not recommended.
QUOTED FOR VERY MUCH TRUTH
CANNOT STRESS THIS ENOUGH
Should you ever write erase a production router just because you're frustrated with it?
:no:
Quote from: deanwebb on May 22, 2017, 03:27:39 PM
Quote from: ristau5741 on May 22, 2017, 03:24:32 PM
'write erase' would wipe the router startup-configuration, and return the router to it's default state. doing this in production is not recommended.
QUOTED FOR VERY MUCH TRUTH
CANNOT STRESS THIS ENOUGH
Should you ever write erase a production router just because you're frustrated with it?
:no:
write erase
reload in 15
and then peel out of the parking lot in your Ferrari.
No don't do this just trying to be funny.