Minutes 49:00 and 55:00 finally made the difference between phase 2 and phase 3 crystal clear for me. Phase II = Request, Forward, Reply Phase III = Redirect, Request, Forward, Reply
I like this guy for his frankness.. its refreshing. I find cisco hard as i dont have a good memory, im better at programming complex ideas, remembering all the cisco stuff and labs is overwhelming.
42:43, what a clear table, explaining overlay, underlay, how clearly mentioned that overlay can have multiple names and similarly underlay with their multiple names, kudos to Rohit, i was too confused before watching this video, now everything makes sense
First: This is excellent content! Bravo, great explanation! And now for the nitpicking: Buf if you summarize to the extent where the hub just sends a default route, that route will not be installed in the rt since you already have the default from the underlay. And that't the good case. In the bad case the eigrp AD will be better than your underlay default AD and you will end up flapping back and forth. Maybe the hub could summarize your internal addresses, RFC1918, what have you, or maybe you could go for a front door vrf/ internal vrf/vrf aware ipsec setup and have them separated.
For example: Eigrp is running on overlay. BGP on underlay. How does traffic is carried on ISP? After encapsulation(encap with NBMA add) the traffic will be carried by BGP?
Hi Very good video. I am trying to configure in GNS3. DMVPN Phase 1 and 2 working but phase 3 not working. In DMVPN phase 3 next hop is showing through Hub only. Any suggestions?
What was it that forced you not to do such a thing that today you too would be able to share with us!? You've seen his 10 minute's intro but didn't pay attention on 2 hours good lecture which he delivered. He is not in high ego. I think, the one who himself has not been able to do anything, feels others' achievement as 'ego'.
The best one, very detailed, Brian was going too fast, the best part is, everything is broken in parts, keeping it simple, right from fundamentals with very good examples, no slip of tongue, very well articulated
Tutorial mostly ok, but is full of mess/confusing points like in 31.07 min. Author puts private, public, underlay, overlay and tunnel IP address in one sentence so I dont know whats what. Same in 46 min. How hub knows the destination? He dosnt have in NHRP 10.1.0.0 address. What is in packet that is sent from S2 to Hub? Finally: so what hub,spokes are looking at: routing table or NHRP table?????? Also NBMA address on S2 changed to 133.1.1.1 for some reason in 48 min (pictutre)
1) The overlay IP will be always private and that is because you do not have to route it over Internet. Underlay IP can either be public (in case your ISP gave it to you) or private (in case you have some type of private lines e.g. metro ethernet, given to you by ISP). 2) The LAN sections (10.x.x.x) are advertised by a dynamic routing protocol (e.g. EIGRP) betwern sites. So, S2 will reach 10.1.0.0/24 via 172.16.1.254 as next hop (learned via EIGRP). S2 will reach 172.16.1.254 via 187.0.0.254 (via static NHRP mapping). The same logic follows the hub to forward the packet towards S1.
19:35 basic component
36:01 Overlay
42:50 DMVPN phase 1
48:00 DMVPN phase 2
53:54 DMVPN Phase 3
1:03:42 Configuration
The best material on DMVPN I have come across ... explained in full detail and so simple to understand. Great work Rohit !
Best DMVPN video I ever watch. Detail n deep
Minutes 49:00 and 55:00 finally made the difference between phase 2 and phase 3 crystal clear for me.
Phase II = Request, Forward, Reply
Phase III = Redirect, Request, Forward, Reply
I like this guy for his frankness.. its refreshing.
I find cisco hard as i dont have a good memory, im better at programming complex ideas, remembering all the cisco stuff and labs is overwhelming.
There are some mistakes on ip's like 133.2.2.2 and in diagram it says 133.1.1.1, please correct that
Great achievement.Graet webinar Ever. Thanks Rohit
watched rohits multicast video and now on to DMVPN. amazing explanation.
42:43, what a clear table, explaining overlay, underlay, how clearly mentioned that overlay can have multiple names and similarly underlay with their multiple names, kudos to Rohit, i was too confused before watching this video, now everything makes sense
First: This is excellent content! Bravo, great explanation!
And now for the nitpicking:
Buf if you summarize to the extent where the hub just sends a default route, that route will not be installed in the rt since you already have the default from the underlay. And that't the good case. In the bad case the eigrp AD will be better than your underlay default AD and you will end up flapping back and forth.
Maybe the hub could summarize your internal addresses, RFC1918, what have you, or maybe you could go for a front door vrf/ internal vrf/vrf aware ipsec setup and have them separated.
For example:
Eigrp is running on overlay. BGP on underlay. How does traffic is carried on ISP? After encapsulation(encap with NBMA add) the traffic will be carried by BGP?
this is really amazing!!
Do you have to use “mode tunnel” for the IPSec?
Hi Very good video. I am trying to configure in GNS3. DMVPN Phase 1 and 2 working but phase 3 not working. In DMVPN phase 3 next hop is showing through Hub only. Any suggestions?
excellent explanation
How long does it take to update a spoke when a dynamic IP changes on another spoke, what's the downtime?
Very good and useful seminar. One query, cant we use BGP as overlay protocol?
yes we can
BGP itself is an overlay protocol as it uses underlay routing.
this guy is a CCIE addict!!! i'm sure if there are more CCIEs he will book for them.
Just excellent 👍
where ever you are live long, you cleared a lot of doubts in 2hrs , kudos to you
very good explanation. if not understand watch it three, four......time.
In hub and spoke topology How multi-as issue resolve .
Very well explained ,concept as well as configuration.
BEST dmvpn webinar ! Rohit rocks!
Excellent Job Rohit, I am glad that i met you in Bangalore HSR layout long back
What an awesome video with training content. Thanks for sharing :)
do we have similar INE webinar for IKEv1,IKEv2 ? or any VPN?
Very well explained !!!!
Best DMVPN video ever, no comment.
hello, what should be the ISP cloud config?
Best detailed video for learning dmvpn concepts
Best one in details, clear most of things👍
Very well explained, Thanks
Many Thanks, really very useful and detailed job
Hi Rohit you are a great teacher thanks.
5 CCIE's is amazing!
Amazing, thank you so much for this video
himan can you please stooooop that! hahahah
Thanks...you are very good.
is this a DMVPN webinar o biography? LOL this guy is way high in ego.
What was it that forced you not to do such a thing that today you too would be able to share with us!?
You've seen his 10 minute's intro but didn't pay attention on 2 hours good lecture which he delivered.
He is not in high ego. I think, the one who himself has not been able to do anything, feels others' achievement as 'ego'.
Can you please guide how to establish VPN over LTE network with dynamic private IPs?
Hi did you find any better video over LTE??
@@cajay4825
You can refer draytek videos
There are couple of videos regarding LTE, specially on their AUS&NZ channel I think
if you are in usa try AT&T with cradlepoint
amazing !!
Great !!!
Hat off !!!!
Nice!
awesome video ...thank you.😍😍😍😍😍😍
The best one, very detailed, Brian was going too fast, the best part is, everything is broken in parts, keeping it simple, right from fundamentals with very good examples, no slip of tongue, very well articulated
Tutorial mostly ok, but is full of mess/confusing points like in 31.07 min. Author puts private, public, underlay, overlay and tunnel IP address in one sentence so I dont know whats what. Same in 46 min. How hub knows the destination? He dosnt have in NHRP 10.1.0.0 address. What is in packet that is sent from S2 to Hub? Finally: so what hub,spokes are looking at: routing table or NHRP table?????? Also NBMA address on S2 changed to 133.1.1.1 for some reason in 48 min (pictutre)
1) The overlay IP will be always private and that is because you do not have to route it over Internet. Underlay IP can either be public (in case your ISP gave it to you) or private (in case you have some type of private lines e.g. metro ethernet, given to you by ISP).
2) The LAN sections (10.x.x.x) are advertised by a dynamic routing protocol (e.g. EIGRP) betwern sites. So, S2 will reach 10.1.0.0/24 via 172.16.1.254 as next hop (learned via EIGRP).
S2 will reach 172.16.1.254 via 187.0.0.254 (via static NHRP mapping). The same logic follows the hub to forward the packet towards S1.