10.68.40.1 is the address we used to use for the default gateway, so I think it is the ip of the Internet router. My default vlan has the ip of 10.68.40.2/27 so I'm thinking that may be why I have an issue, if I change the ip range to something else would that work, I'll try it tomorrow morning, I hope so.
I can't ping the default vlan, i get a destination net unreachable error. If I try and ping any other vlan ip it works fine and I get a reply.
Is there anything connected to the default vlan? If not, that will explain why you can't ping it. You can only ping a vlan IP if there is something connected to it. You could paste your config onto here and see if we can spot anything that doesn't look correct.
What Teejay says is ringing some bells for me. That's why I ended up doing it a different way.
@adamf i've got things attached to the default vlan.
What I did have until yesterday was 2 vlans, 1 for curriculum and 1 for admin, there was no routing on them, they were just setup with different ip ranges and different servers and clients. That seemed to work, I think i'll go back to the old setup for now, to make sure everything is working, then look into getting everything planned for the next holiday period to setup the vlans, when I don't have any other jobs to do, at the moment everything else is being put back, which isn't good as i've only got 2 weeks left to figure everything out.
I would VLAN using Roles and GEO. I would avoid dynamic VLANs though...just a preference..
However, you need to start with a IP Plan..
I would have a separate printer VLAN, I would also segragate the VLAN names to something meaningful.....
dhcp 172.21.100.1 172.21.103.254 172.21.103.255 172.21.100.0/22 255.255.252.0 1022 100 VLAN100 CRC_F CRC admin only
dhcp 172.21.104.1 172.21.107.254 172.21.107.255 172.21.104.0/22 255.255.252.0 1022 104 VLAN104 MS Students MS Students
dhcp 172.21.108.1 172.21.111.254 172.21.111.255 172.21.108.0/22 255.255.252.0 1022 108 VLAN108 JEC_F JEC buildings
static 172.21.3.1 172.21.1.126 172.21.1.127 172.21.3.0/25 255.255.255.128 128 1 VLAN1 Network devices Management
static 172.21.3.129 172.21.3.254 172.21.3.255 172.21.3.128/25 255.255.255.128 128 1
static 172.21.2.1 172.21.2.127 172.21.2.0/25 255.255.255.128 128 20 VLAN20_PRINTERS Printers
172.21.1.129 172.21.1.254 172.21.2.255 172.21.2.128/25 255.255.255.128 128 20
Not sure how the above will look...
dezt (5th September 2011)
@rbance Thanks for that idea, i'm holding off for the time being as the kids are back on Wednesday, but will be looking at implementing it around Christmas time, as it gives me a bit of time for some extra planning.
i have problem problem with my configuration e5406..how to configure that switch as act dhcp server because my network don't have dhcp server...what i know,3com and cisco switch can act like dhcp server.can u help me how to configure it?i just use default vlan 10.x.x.0 /24...and what is ip helper address?
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