- Community Home
- >
- Networking
- >
- Legacy
- >
- Switches, Hubs, Modems
- >
- VLAN Setup
Switches, Hubs, and Modems
1752781
Members
6280
Online
108789
Solutions
Forums
Categories
Company
Local Language
юдл
back
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
юдл
back
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Blogs
Information
Community
Resources
Community Language
Language
Forums
Blogs
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-30-2006 11:15 AM
тАО10-30-2006 11:15 AM
VLAN Setup
Have HP ProCurve 2524 and trying to set a vlan for ip based pbx usage. There are three buildings on this site and not sure how to set up the vlan. The following setup follows:
switch A is Bldg 1 that houses the pbx
switch B is Bldg 2 housing switches only
switch C is Bldg 3 housing phones needed to connect to pbx
Created a vlan in all three switch stacks (A, B, C) but am unable to ping from C to A or B. Ports are all untagged.
This is probably easy for someone who lives and breathes this stuff but I do not. Any help greatly appreciated.
switch A is Bldg 1 that houses the pbx
switch B is Bldg 2 housing switches only
switch C is Bldg 3 housing phones needed to connect to pbx
Created a vlan in all three switch stacks (A, B, C) but am unable to ping from C to A or B. Ports are all untagged.
This is probably easy for someone who lives and breathes this stuff but I do not. Any help greatly appreciated.
3 REPLIES 3
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-30-2006 02:36 PM
тАО10-30-2006 02:36 PM
Re: VLAN Setup
Hi
Usually, the Switch comes with 1 Default-Vlan with ID=1, and if yo uwant more, you can create on the switch but in this case you need to do routing between these Vlans so they will be able to communicate between each other.
The switch you have 2500 series doesn't have routing between the connected Vlans, so if your plan to have more than one Vlan crossing all the Switches and routed to other Vlans, they you need an External Router to do that.
Basically what you can do is:
Just keep the default vlan as it is, and connect cables between the switches, in this case all the switches have one vlan (the Default) shared between them, and keep the ports also untagged since you don't have more than one Vlan.
You don't have to have different IP Subnet on each switch since they all part of the same Vlan = Same Subnet, say you dedicate 10.1.1.1-50/24 for first building, 10.1.1.51-100/24 for second, 10.1.1.101-150/24 for the third.
If that was not enough to explain, then i prefer you attach the config of your switches here so we can sort it out together.
Good Luck !!!
Usually, the Switch comes with 1 Default-Vlan with ID=1, and if yo uwant more, you can create on the switch but in this case you need to do routing between these Vlans so they will be able to communicate between each other.
The switch you have 2500 series doesn't have routing between the connected Vlans, so if your plan to have more than one Vlan crossing all the Switches and routed to other Vlans, they you need an External Router to do that.
Basically what you can do is:
Just keep the default vlan as it is, and connect cables between the switches, in this case all the switches have one vlan (the Default) shared between them, and keep the ports also untagged since you don't have more than one Vlan.
You don't have to have different IP Subnet on each switch since they all part of the same Vlan = Same Subnet, say you dedicate 10.1.1.1-50/24 for first building, 10.1.1.51-100/24 for second, 10.1.1.101-150/24 for the third.
If that was not enough to explain, then i prefer you attach the config of your switches here so we can sort it out together.
Good Luck !!!
Science for Everyone
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-31-2006 01:11 AM
тАО10-31-2006 01:11 AM
Re: VLAN Setup
I was wanting to do this on my existing switches as I have them configured with 2 vlans. The default and one for the pbx. Is it possible to set this up without using an external router? I would think that since they are connected by fiber I should be able to route normally without an external router.
Configuration is setup as follows:
Default vlan Bldg A - 10.1.1.xxx
PBX vlan Bldg A - 10.1.50.245
Default vlan Bldg B - 10.1.1.xxx
PBX vlan Bldg B - 10.1.50.246
Default vlan Bldg C - 10.1.1.xxx
PBX vlan Bldg C - 10.1.50.247
The data network is running on 10.1.1.xxx while I have sectioned off part of the ports on the switch for the pbx connection. I would think that I would not need a router to make this work. I'm I right?
Configuration is setup as follows:
Default vlan Bldg A - 10.1.1.xxx
PBX vlan Bldg A - 10.1.50.245
Default vlan Bldg B - 10.1.1.xxx
PBX vlan Bldg B - 10.1.50.246
Default vlan Bldg C - 10.1.1.xxx
PBX vlan Bldg C - 10.1.50.247
The data network is running on 10.1.1.xxx while I have sectioned off part of the ports on the switch for the pbx connection. I would think that I would not need a router to make this work. I'm I right?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-31-2006 05:14 PM
тАО10-31-2006 05:14 PM
Re: VLAN Setup
If you do not need hosts in one VLAN to exchange information with hosts in the other VLAN, then you will not need a router to perform the routing between the subnets associated to each VLAN.
If you need hosts in one VLAN to be able to communicate to hosts in the same VLAN, but which are connected in different switches, then you need to set the ports that connect the switches (the uplink ports) so that they carry both VLANs over the uplinks (the DEFAULT_VLAN may be left untagged, but the PBX_VLAN must be tagged).
Across all 3 switches, DEFAULT_VLAN must be defined with the same 802.1Q ID (which is always 1) and the PBX_VLAN must be defined, also, with the same 802.1Q ID (for example 2).
802.1Q IDs are the tags that switches put in front of each ethernet frame, so the receiving switch knows on which port to forward the frame (or on which ports, if the frame is a broadcast frame having the destination MAC address FF:FF:FF:FF:FF:FF).
Before the switch forwards a frame to a computer/printer or to a switch/hub without management, it strips the VLAN information from the first part of the frame, since the vast majority of the operating systems do not know what to do with a tagged frame (and they do not expect tagged frames): this is why the ports of the switch where computers/printers or flat switches/hubs are attached must be defined as untagged.
If you assign IP addresses to VLAN interfaces on the switch, anybody in that subnet can stumble on your switches and try to hack them or perform denial of service on them: I do not assign IPs to switch VLAN interfaces for the subnets my users live in. Instead I use DEFAULT_VLAN for the purposes of switch administration, and create more VLANs for users.
If you need hosts in one VLAN to be able to communicate to hosts in the same VLAN, but which are connected in different switches, then you need to set the ports that connect the switches (the uplink ports) so that they carry both VLANs over the uplinks (the DEFAULT_VLAN may be left untagged, but the PBX_VLAN must be tagged).
Across all 3 switches, DEFAULT_VLAN must be defined with the same 802.1Q ID (which is always 1) and the PBX_VLAN must be defined, also, with the same 802.1Q ID (for example 2).
802.1Q IDs are the tags that switches put in front of each ethernet frame, so the receiving switch knows on which port to forward the frame (or on which ports, if the frame is a broadcast frame having the destination MAC address FF:FF:FF:FF:FF:FF).
Before the switch forwards a frame to a computer/printer or to a switch/hub without management, it strips the VLAN information from the first part of the frame, since the vast majority of the operating systems do not know what to do with a tagged frame (and they do not expect tagged frames): this is why the ports of the switch where computers/printers or flat switches/hubs are attached must be defined as untagged.
If you assign IP addresses to VLAN interfaces on the switch, anybody in that subnet can stumble on your switches and try to hack them or perform denial of service on them: I do not assign IPs to switch VLAN interfaces for the subnets my users live in. Instead I use DEFAULT_VLAN for the purposes of switch administration, and create more VLANs for users.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
News and Events
Support
© Copyright 2024 Hewlett Packard Enterprise Development LP