All Questions
14
questions
0
votes
1
answer
144
views
Switch ping to router with trunk port
If I have a switch port trunk directly connect to a router with the follow scenario below:
-------- g1/0/1 (Trunk) g1/0/1 |------|
|switch| Native VLAN 1 SVI=...
- 103
4
votes
1
answer
1k
views
Same Vlan Name / ID on different switches network subnet same or different?
I have several switches (some on same floor and another on other floors) all connected to core layer 3 switches through trunk links.
One of the vlan id / name is repeated along the switches. May I ...
27
votes
9
answers
31k
views
Why can't devices on different VLANs, but on the same subnet, communicate?
I have a question about switching. I have two devices connected to a switch with IP addresses 192.168.5.20 and 192.168.5.10. Both devices have the same prefix, /24. That means they are on the same ...
- 419
1
vote
1
answer
3k
views
Can a VLAN have hosts with IP addresses outside it Subnet IP range scope?
I have 3 entities in my network.
A server,switch and an appliance which acts as a DHCP/PXE server.
When the server starts up, the DHCP server has to PXE boot the server. A seperate VLAN(1234) is ...
- 13
1
vote
3
answers
462
views
Vlan tips? New switches (hp 2920s), single subnet or multiple subnet per vlan?
we have a series of old switches that have been failing at the company for sonme time.. i've since purchased 6 hp2920's which are layer 3 (the old ones are layer 2).. we previously didnt use vlans... ...
- 11
5
votes
2
answers
15k
views
Routing Between 2 different vlans but same subnet
I have a basic doubt understanding vlan communication.
Scenario:
Let's say a single switch and has been configured with 2 vlans (vlan 100 and vlan 200). Vlan 100 connects to lets say 192.168.100.0 ...
- 53
1
vote
1
answer
348
views
Subnetting a network for VLANs
Real beginner here, struggling with my first real life network problem, existing kit, and almost no budget.
Two departments, which have to remain private from each other, are to be linked to main ...
- 11
2
votes
1
answer
743
views
VLAN vs Subnet in switch
For VLAN communication we need a layer 3 device. For internetwork communication, we also need a layer 3 device. Then why did concept of VLAN emerge?
0
votes
2
answers
202
views
Separate Subnet for Each Vlan? [duplicate]
Thoughts and Query
I was tring to understand Inter-vlan routing and realised, that each exsisting vlan in the switch is configured with a different subnet.
Is this is a good practice or is there any ...
1
vote
1
answer
632
views
VLAN and Subnet relationship with 2 offices sharing a switch
I appreciate there is an answer here already. As well as reading this and seeing this video I am still slightly confused...
If a company has 2 offices (on the same floor in close proximity of each ...
- 33
3
votes
2
answers
3k
views
VLAN tagging, routing, and general pain
To everyone who takes the time to read below, thank you very much.
I want to start this off with the very general question and then give my exact situation. I really don't understand the terminology ...
- 158
2
votes
1
answer
720
views
Best Practice(?): 2 publicly available subnet VLANs and inter VLAN routing
I am looking for some expert networking advice on what would be "best practice" if I wanted to achieve the goal below based on the available equipment we have.
Equipment:
SonicWALL TZ 105
HP V1910-...
- 53
4
votes
2
answers
18k
views
VLANs and IP addressing
I have been tasked with setting up some VLANs on 10 HP 2520 switches. This is a departure from my normal IT support area so thought I'd seek out a little advice from more knowledgable people.
These ...
- 41
5
votes
3
answers
3k
views
Is a router always necessary to link two subnets?
I am thinking especially of VLANs, which represent separate subnets that may need only one switch.
- 1,071