Inter VLAN Configuration plus IP- Helper Address
ฝัง
- เผยแพร่เมื่อ 28 ก.ย. 2024
- This lecture is part of one of my courses that encompasses several concepts of the CCNA certification. In this lecture you will learn how to configure inter-VLAN connectivity and the importance of trunk ports. To view the entire course, which consists of Access-list, NAT, VLAN creation and assignment, Ripv2 and basic Router administration, go to www.thenetworkingdoctors.com website or the www.GlobED.net website!
Hope to see all of you as one of my online students!
The reason why you are gorgeous is that you simplify the explanation
Thank you :)
Hi Laz, very informative and clear in concepts, appreciate for knowledge sharing, and Thanks a lot, please keep posting , Good day!
I watched this video more and more l like it really u r good teacher
+Buta Dametew ...thanks Buta!
very well thanks it helps a lot
👍
owe.. u r fantastic. u cleared all my doubt. cheers sir.
come to india i will give u party.
thanks for everything completely helpful easy and understandable
You're my saviour.
+Lamp ...thanks Lamp!
@mohammed gesmalla...this is a snippet of my complete Vlan course available on Udemy.com. The complete course is over 3 hours long.
This video taught me more about inter-vlan configs than the hours i've spent in lectures and doing coursework, thank you!
Your welcome, I am glad I was able to help you.
Thanks brother, I believe the Packet Tracer is free all you need to do is search for it. Udemy has nothing to do with it. If you can find it I can always setup Drop Box or an FTP for everyone to download it. I going to see if I can make it available as link as part of my lecture. thanks again for the great comment.
I love your T-shirt, btw, awesome video!
Great. Thank you
hey laz is there a video that shows how your setting up the toplogy. just finished my cisco 1 course and would like to see how your setting up your devices as well as your interfaces so i can rebuild it on my packet tracer. this seems like it would be a great review before i get started with my cisco 2 course.
Hi laz great video! One question do you think wol is possible between server vlan (dhcp, dns, ad...) to computers vlans.. I need to wake up my computers from the server which is always turned on and already configured with two dhcp scopes (2 vlans 1 for teachers 1 for pupils).. Our network core is a level 3 cisco switch... As wol doesn't traverse routers even if ip-helpers allow broadcast from computers to dhcp vlan server it doesn't allow wake on lan from vlan server... I thought about using a trunk between but if so no ip-helper will be configurable in that trunk I guess... I hope I was clear enough to hope having an answer from you... Thanks a lot for your help dude
hi what is the software you use for demonstrating you labs with all the equipment connected.
Hello Laz, just want to say excellent job with the tutorial, you made it very easy to understand. I just have one question, I have a SG300 switch which can do inter VLAN routing and am using a Asus-68U wireless router to do my wired and wireless routing on my home network. I'm trying to setup a lab that contains VLANS and want them to have access to the internet. How can I accomplish this without an actual router since i cannot add subinterfaces to the Asus-68U wireless router.
Hey Laz, love your videos my man. I am guessing you would have to nat translate each of the sub interface default gateways to one public ip for outbound internet access?
A have a question: for example, if your NAT Router were the DHCP server, how would you configure the Access Router (in WAN connection between them) to provide all the hosts an IP address, in the diferent VLANs?
Hope you can help me, thank you!
Do you have a video that shows how you configured the whole network please? Also i wondered whether you have a video that explains inter -vlans configs that incorporate an email server?
I have a situation here, had a router, one switch to be used for vlans and a Dell server running Windows server 2012 R and would like to have all ip addresses all dynamically deployed via the Server 2012 R2 utilizing IP helper from the router, any configuration ideas for this set up?
@veq hajgare I'm going to make a video just for you!...so look for it tomorrow on TH-cam. Hopefully, I can teach you "HOW TO CONFIGURE DHCP FOR INTERVLAN's" - Laz
I remember this stuff. You could also just buy a layer 3 switch.
I don't know why the remaining VLANs that I created(VLAN 20 - 40) doesn't have an IP add. my VLAN 10 is an IT dept which has 6 workstations together with the DHCP and a backend server.
Do you create pool for each vlan on dhcp server?
yes, you need to create a pool for each vlan.
Great Video, but All I need to know is HOW TO CONFIGURE DHCP FOR INTERVLAN's, because u haven't showed us that!
Can you link me to the previous video you talk about?
Good information Sir....I would like to know the name of your book so I may purchase it....thanks
+Bruce Haley ...thanks Bruce! THE ONLY IP BOOK YOU WILL EVER NEED! ...available on Amazon
Where can I find 2nd part.
2nd part of what? Live, Online or self-paced?
I came here due to connectivity errors during gameplay in Leauge Of Legends, I get disconnected every 5 minutes or so for about 10-20 seconds from my internet entirely and about 40 seconds from the game. I read up a post of the Boards of league of leagues submitted by the Companies Techs and they say Disabling IP Helper helps. So i did, and guess what. It is no longer disconnecting me from that, but it is giving me 10 second lag spikes in every other game. How do i go about this? plz help.
Hey Guys, I have a situation where I have a switchport that is on vlan 10. So all devices that are connected to that port are on that subnet. Howver we have just installed some ip cameras in our yard that are on a different subnet , subnet 192. Two of these cameras are connected to the network that is on vlan 10. How can I route the traffic on these 192 cameras to vlan192? Sorry if this is not the right place for this question, but can you please point me in the right direction?
sir, can you tell me that how can i separate a network after trunk ed (when all pc's can ping each other) ?
Please help. After I run this configuration, the VLANs start communicating with each-other, and that is definitely not what I want. I need different VLANs that are not able to communicate with each-other, but still share servers like DHCP, DNS, Web, and Email. How do I do that?
Is that done using VLAN Access Maps (VACL)?
I cant get this to work, for some reason the dhcp requests stops at the core switch.. ARGH!!
Hello est il possible d'avoir une traduction en français ou sous trithage en français plaese merci d'avance...
Dear Sir,
Good day fro you,
please could you help me to get CISCO Certificate, i mean which topics start to read i mean from zero point, and i would like to work in PACS, HIS, RIS, LH7 and DICOM.
Best regards
Salah
Are you on juice? Those arms look like they've had a juice boost.
breaking bad..
+Eduardo xavier ...I wish!
Haha. A little bit.
Hii
Damn that shirt tho love Big Bang Theory
So do I 😊
Amazing video! thanks a lot.
COULD YOU….
Given that it's the same IP Helper address for every subnet...
Configure your IP Helper on the INTERFACE instead of on every SUB-INTERFACE !?
You are correct, you can setup the router as the DHCP server and it would simplify things. This was a lab demostrating the 'IP helper-address" withing a VLAN enviroment. But take care on which router you would setup the DHCP service, make sure is not a router handling lots of traffic or is already burdened with other services.
You know, that he knows his stuff when it doesn't take him to long to divide subnet....
Why not assign VLAN IPs on the core switch and turn Fa0/24 into "no switchport" with IP for communication with a router? Wouldn't that improve vlan-to-vlan communication in case there is a lot of vlan-to-vlan traffic, and your router-core switch link doesn't become a bottleneck? Unless core isn't Layer 3 capable in any way.
how does dhcp knows in which network the computer that is making dhcp discover must be ? is there a network - vlan table ? the dhcp knows wich vlan the discover comes from but then ???
Hi Laz, Great tutorial!
Please can you explain me why do you use the switch interfaces instead of doing the sub-interfaces on the router?
g0/0.2 for exemple.
Great vid but I would greatly appreciate it if you wouldn't flip the bird at me when your moving windows on the screen. Thanks in advance......
Did I miss something ? I followed all the steps in this video. The Dhcp in my pc is not working, it only says "APIPA is being used" Hope someone can answer my question. thank you
dhcp pool is missing specially when u assign ip help address of ip add 10.100.0.1which is not mention on video please make it clean thank u for ur effort
Thank you very much I was stuck
Glad to help!
Great
Should i create this subnets? Because im very, VERY confused so i want to do the easy way first
I couldn't understand the available IP address part can u make it easier plz and thank you in advance
Hi Dude, Its very useful, but i would like to learn about Windows DHCP server along with Inter Vlan concepts, can i get any link for my question? Thanks in advance
Thank you Sir for spending time explaining to all of us. Big thanx from Island Cyprus ( Greek )
+Philippos Trillides ...always wanted to visit the Greek Islands! ...love the movie 300 :)
Really good teacher. Better than Universities some how
Truly the best teacher and speaker. I have watched a lot of training videos and this one is by far el mejor!
Gracias!
Thank you, you are very much appreciated
QUESTION!?
IS it possible to connect two Cisco router trough T1 CSU/DSU and have Vlans on both Router 1 and Router 2 communicate with each other? because i config the T1 CSU/DSU interfaces on both routers and i was able to ping but i cannot ping Vlan to Vlan, I'm new into Networking I'M not sure If i'm missing anything
if you assign the inter VLAN to router why you attach a DHCP server you created a server on the router so why you attach the DHCP server
Hi
Sorry I don,t understand the interfaces of TFTP and DHCP servers are in 23 and 25 interface but when you assign Vlan 2 u did in int range fa0/1 - 5 ?????????
I'm not sure if this will still be helpful, but here I go anyways.
His TFTP and DHCP servers are in fa0/1 and 0/2. If you look closely you'll be able to see it. There is no interface 25 on the switch since it only has 24 of them. And the 23 interface is shown on screen, but only because the switch on Vlan50 is connected to it.
hi
I have some problem in this course, can you help me
Can you attach a pic of the ip configs? Couldn't really see them on the vid.
Thanks
Thanks so much
You’re welcome!
Seriously this guy is an awesome teacher - look forward to watching more!!!!
Thank you ☺️
Thanks,
Your videos make things so much clearer to me.
Easy is my middle name...glad it helped!
What is the Title of the next video after this one? Thanks
Pretty good and informative tutorials. Thank you very much for sharing with the world Cisco networking concepts through awesome labs.
Cheers from Brazil,
Joao
Ahh!...Brazil is on my list of places I need to visit 😊
Anytime, my friend. Feel free to come. (:
I always wondered what « the rock »’s life would be without cinema
Thank you 🙏
Lol Thanks man😎
@@thenetworkingdoctors 🙏 🙏
@Cubano Madrileno....in this video I am only trying to show the use of the IP-helper command. Therefore, I used an actual server in a different broadcast domain to demonstrate how a host on another broadcast domain can get assigned an IP address, by using the IP helper-address.
Hey brother, the Packet Tracer is available as a link. It points to a website for all to download it. See you soon.
ياشيخ لبى صلعتك بس
I have serious problem I have 5 VLANs and I put main servers especially domain in individual VLAN using DHCP helper but I am facing problem in domain functionality did not work well on other VLANs especially group policy and log in, however, ping, sharing work perfect, I am sure there is no problem on domain if I add any PC in same serves VLAN it work perfectly but in other VLANs not, i tried to use ip directed-broadcast & ip forward protocol udp but useless
I connect a router with a switch, and that switch with an other switch (so R-S-S). And I have on switch one Vlan10 and 20 and on switch two vlan 30 and 40. I configure the trunk link between R-S and S-S with trunk allowed 10,20,30,40. And I do the encapsulation and everything. Plus my router acts as a DHCP . My hosts in vlan 30 and 40 do not receive an IP as long as I didn't issue the "int vlan 30" and "'int vlan 40" command on switch one. What is the reason for this? Can you explain this? Or is this explained in a video somwhere?
This guy is fucking fantastic!!!!
@alex yu, my first question would be is this on the same switch or do you have multiple switches with multiple vlans?
my sencond questions is can you ping other vlans?
If you can't ping other vlans, my third question is did you trunk your ports?
Based on your question I can only deduce that your tagged vlans are trying to get accross a non-trunking port.
ip helper address converts the DHCP client BROADCAST REQUEST to a unicast address to the target dhcp server so the DHCP client broadcast address can travel through a routed network.
Also FYI, ip helper address WAS actually build to help relay 8 types of applications BOOTP, and TFTP , just these days many of the 8 types of applications are seldom used any more except DHCP.
most current CCNA materials say ip help address is for DHCP ; true or imcomplete comment.
What a fantastic tutorial. You earned my respect sir.
How can i get my Vlans to the internet ? i have a 2821 router and a 3550 switch ? am not using Sub interfaces ? My Vlans can talk to each other but not the outside world? i have Nat on the router configured. Need a little help Thanks !
Hi dear sir:
thanks for these useful and great videos.
sir i followed all steps as you did. but when i renew the ip address on vlan 10 or .....
the dhcp server assigns ip address from 10.100.0.10 and for the next vlan is 10.100.0.11 and for the next is 10.100.0.12
here is my question that why it is not assigning ip address 10.100.0.64-..... for the second network.??????
That's pretty good.
EXCELENTE EXPLICACION !!!!!!
I have a question. i am sure there is a security reason behind it. But why use the last number in the subnet to address the VLAN. I only remember on question that did that scenario on the CCNA. But why not 2 or 3 rather than 30 of a /27.
your videos are great lazaro....i got a 1000 on my ccna exam
WOW! Congratulations are in order!!!! Did you take my CCNA Course?
i read a lot and watched almost all of your videos...thanks a bunch and keep up the good work
+Johnnny Demerson How long did you study for and what materials did you use? I am studying for my cert while working full time in IT. It's tough but I'm trying. Congrats by the way thats an insane score. I never heard anyone get that high before!
hi question ! you're using class A range ip with class C subnet mask...im confused .. can anyone elaborate ?
Once you learn about RIP, EIGRP and OSPF you realize the IP Helper address is just another way to see networks on the other side of a router.
I don't normally comment on any video but, mate, you just gave me the info I needed to solve this f-cked assignment I got. Brilliant teacher, thank you.
everything good but can anyone please help me whats the DHCP setting he did. what network he bring the dhcp server in "ip address the dhcp server" and whats the gateway ip of DHCP ?
I am taking a CCNA course at AVtech and I am using your video review all topics.
After using all the videos the CCNA exam should be no problem
Just finished the lecture. AWESOME job Laz. Loved the bonus material. Can't wait for the router class.
Question, why did you use the last available IP and not the first one? Just preference? Thanks in advance
The ip helper-address is what i had been troubleshooting for a long time, only to find out The solution was on a 18min video... Definitely a great tutorial. I loved it.
can you please leave the link for the cost of training material for the CCNA and how to purchase material
i understand why your lessons are so easy to understand, just because easy is part of your name, the only thing we have to do is play it over and over again. I read through most comments and i find out that 2 years ago someone commented on this video and 5 minutes ago as well, people keep watching and it wont stop, it sounds like you did the video few minutes ago. Mr. Easy! You too good, thank you for your support, we will keep learning from you till we do like you do or more, i really appreciate, we love you.
Can I ask something? If you have a time, please answer me. I have a problem immediately which I connect the core switch with another switches. The system show error. Am I wrong anywhere? All switches I connect on port 24 with the Core.
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/5 (10), with Switch FastEthernet0/24
What error exactly is it giving you? Make sure you are using crossover cabling, also you must trunk the ports on the core that face each switch.
@@thenetworkingdoctors Laz, first: my apologies for bothering you and thank you for taking the time to answer me. I am not shure which kind of cable I used, because I did not choose exactly cable but I choose the default cable - automatic select cable from P. Tracer. Maybe that is my mistake.
When I put command "No CDP RUN", the error stop. I'm not sure if I'm allowed to issue such a command. This is the error which Core switch gave me:
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/5 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/6 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/5 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/6 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/5 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/6 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/5 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/6 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/5 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/6 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/5 (10), with Switch FastEthernet0/24 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/6 (10), with Switch FastEthernet0/24 (1).
Okay the following error (%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch ) means you changed your Native VLAN to another VLAN and VTP is letting you know.
@@chili5238 switch to switch crossover but that error your getting means you changed your native vlan to some other vlan and vtp is letting you know.
Sir I have a question, I want to set up a specific web page on my router so that any client machine(phone) who connect to my router will automatically get the same web page which I have set, in their browser. Is is possible to do and how?
Yee I like your videos
can someone please tell me why 10.100.0.1, whats this ip addr assigned for
Hey Laz... Great videos bro...I wanted to ask you if you can let me know where can I find the previous video of this lab or the whole lecture videos, it would be amazing, im not able to find them and I really want to view them, so i can be on the same page you are on this video.
Thank you very much for your help, and amazing work on your video tutorials
Kenny
How can i route my vlans to get internet access. am STUCK BIG TIME.
I have vlan 10,20,30 on a 3550 switch, and a 2821 Router vlans can communicate to each other but not the internet. ACCESS-List looks fine ? any advice ?