Anyone know a way on an Autonomous Cisco AP to get two SSID's to share one VLAN?

alkemyst

No Lifer
Feb 13, 2001
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For typical Big Box wireless AP's this is easy peasy.

For a real Cisco AP, not so.

Basically I run my PC on 5GHz and any clients that want to join. I run my video cameras on 2.4GHz and those that can't support 5GHz here.

On my E4200 everyone was on one VLAN...the main issue I have now is sharing printers and files breaks in windows different subnets.

If it helps my device is a Cisco C819HWD-A-K9 ISR Wireless Router.

Also if anyone knows a way to improve signal strength over the stock rubber ducks, let me know. I have a private airport nearby so I don't want to play with World Mode options.
 
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seepy83

Platinum Member
Nov 12, 2003
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I'm pretty sure on the Aironet's you can only assign 1 SSID per vlan. Not sure if the ISRs are any different.

If you're only trying to do this because you're having a problem with Printer/File sharing across different subnets, then I would recommend trying to fix that problem. I share Printers and Files across multiple subnets/vlans all day long without error...
 

alkemyst

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Feb 13, 2001
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I'm pretty sure on the Aironet's you can only assign 1 SSID per vlan. Not sure if the ISRs are any different.

If you're only trying to do this because you're having a problem with Printer/File sharing across different subnets, then I would recommend trying to fix that problem. I share Printers and Files across multiple subnets/vlans all day long without error...

First, statement is what I know.

Second, statement is what I am asking.
 

lif_andi

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Apr 15, 2013
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Might be easier to route between the subnets with a static route. As for signal strength you can try a better antenna.
 

seepy83

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Nov 12, 2003
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Might be easier to route between the subnets with a static route.

That's what I was trying to hint at in my post earlier. There's absolutely nothing inherent about Windows file/print sharing that doesn't work across multiple subnets...so either those interfaces don't have routing configured, or there's something else (a firewall running on the hosts, maybe) that's breaking the file and print sharing.
 

alkemyst

No Lifer
Feb 13, 2001
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That's what I was trying to hint at in my post earlier. There's absolutely nothing inherent about Windows file/print sharing that doesn't work across multiple subnets...so either those interfaces don't have routing configured, or there's something else (a firewall running on the hosts, maybe) that's breaking the file and print sharing.

wat? I turned off firewalls....didn't work.
 

seepy83

Platinum Member
Nov 12, 2003
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wat? I turned off firewalls....didn't work.

I'm not saying that firewalls are your problem - but you've got a configuration problem somewhere...either in your routing (or lack there of) between vlans or some configuration problem on your hosts. Sharing files and printers across subnets/vlans is done all the time...it works.
 

alkemyst

No Lifer
Feb 13, 2001
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you probably work in an environment with a separate DHCP server.

show me the config if not.
 

seepy83

Platinum Member
Nov 12, 2003
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I've never used an 819 or any 800-series/ISR. I have no config to show you.

I'm also not sure what you think DHCP has to do with this.

You said that file and print sharing breaks when hosts are on different subnets, and that's factually inaccurate. I don't care if your hosts are using DHCP or static configs...they can share files and printers across subnets.

Do you have routing enabled between the interfaces/vlans that you're having a problem with?
 

alkemyst

No Lifer
Feb 13, 2001
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I've never used an 819 or any 800-series/ISR. I have no config to show you.

I'm also not sure what you think DHCP has to do with this.

You said that file and print sharing breaks when hosts are on different subnets, and that's factually inaccurate. I don't care if your hosts are using DHCP or static configs...they can share files and printers across subnets.

Do you have routing enabled between the interfaces/vlans that you're having a problem with?

please stop responding then.

it's routing on the ISR side. AP's work different.
 

lif_andi

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Apr 15, 2013
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You are interestingly rude towards a person who's been nothing but nice... good luck solving your problem.
 

alkemyst

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Feb 13, 2001
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You are interestingly rude towards a person who's been nothing but nice... good luck solving your problem.

I was being as polite as possible to one that admitted they were just guessing.

Then I went further and explained more so you'd have a better understanding.
 

seepy83

Platinum Member
Nov 12, 2003
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I was being as polite as possible to one that admitted they were just guessing.

Then I went further and explained more so you'd have a better understanding.

:rolleyes:

Did you learn how to route between interfaces yet?

Save the bullshit holier-than-thou crap for OT. I don't know if you'll find someone that's configured an 819 here, but I've done plenty of other Cisco routers, switches, firewalls, wireless controllers, etc. Call Cisco TAC next time you want support specific to one model, or post your config so we can have a look at it instead of just demanding a config from someone else.
 

JackMDS

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Oct 25, 1999
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Please do not slide into None technical posts and personal comment, or this thread will be Gone.

-Jack
Moderator.
 
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alkemyst

No Lifer
Feb 13, 2001
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Seepy83 read the white papers for Cisco APs in AUTONOMOUS mode.

The router is routing properly. I can ping every VLAN from each client. It's not allowing the device shares to pass which probably is not a routing issue, but some kind of L2 traffic.
 
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alkemyst

No Lifer
Feb 13, 2001
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I have a VLAN 25 and a VLAN 1. Subnets 192.168.25.1 /24 and 192.168.1.1 /24.

The subnets can talk to each other via ping from the clients. However; if I map a drive/printer on a VLAN 25 machine those shares are not visible to VLAN 1.

Due to the way Cisco Autonomous APS handle SSID's I need both a separate SSID and VLAN if I want my 5GHz and 2.4GHz Radios usable.

Thanks
 

Mushkins

Golden Member
Feb 11, 2013
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If you can ping just fine between the two it's not a routing issue. Sounds more like a sharing/permissions issue.

Is this a domain or a workgroup/homegroup?
 

alkemyst

No Lifer
Feb 13, 2001
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Work/homegroup

It works fine when everyone is on the 2.4g SSID

If I join the 5g then it breaks for everyone
 

Mushkins

Golden Member
Feb 11, 2013
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Are both wireless networks configured identically aside from the different SSIDs?

Also, what OSes are we talking about on the clients?
 

alkemyst

No Lifer
Feb 13, 2001
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Different VLANS which is a Cisco requirement, everything else is same even passwords
 

JoeBleed

Golden Member
Jun 27, 2000
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How are you mapping the drives? mapping them manually (\\computername\sharename) or trying to browse?

If browsing, i'd say your routing is drooping broadcast traffic. Which it's supposed to do by default.
 

JoeBleed

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Jun 27, 2000
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