SG200-08 Newbie Questions

Answered Question
Jun 21st, 2012

I have recently purchased the SG200-08 Smart Switch, but I have a few "newbie questions" about it as I get started using it.

The on board firmware shows 1.0.1.0. Is that the latest firmware to the switch?

Do I need to enable IPv6 Auto Configuration and DCHPv6 in my switch settings to be ready for IPv6 as my ISP rolls it out down the road?

How do I go about changing the switch's username? I was able to easily change the password, but having issues getting the username to change.

Do I need to do anything about the LLDP-MED settings? What exactly is that?

How do I confugure the System Time Settings so the switch functions in my time zone (USA Central Time)?

Thanks a bunch for any assistance!

I have this problem too.
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Correct Answer by Davidwagman1 about 1 year 10 months ago

Hi Nathan,

1) Firmware: It looks like the latest firmware for the SG200-08 is 1.0.5.1.  You can get it in the software download center. I'm not sure if this link to the software will work, but lets see.

2) IPv6: Are you using NAT on your router? Are you going to be using ipv4 or ipv6 addresses internally? Making some assumptions about your network, I would leave it off for now.

3) Username: In ther web user interface, click on the administration drop down, then choose user accounts. You can add/edit/delete in here.

4) LLDP (Link Layer Discovery Protocol) and CDP (Cisco Discovery Protocol) allow the switch to automatically discover its directly connected neighbors and see each other's abilities and settings. Do you use other Cisco devices on your network or IP phones? For example, the voice vlan can be automatically determined using LLDP/CDP.  Please see p. 53 in the SG200 manual here for further detail.

5) System time can be set under administration -> time settings -> system time.

Best,

David

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Correct Answer
Davidwagman1 Fri, 06/22/2012 - 07:25

Hi Nathan,

1) Firmware: It looks like the latest firmware for the SG200-08 is 1.0.5.1.  You can get it in the software download center. I'm not sure if this link to the software will work, but lets see.

2) IPv6: Are you using NAT on your router? Are you going to be using ipv4 or ipv6 addresses internally? Making some assumptions about your network, I would leave it off for now.

3) Username: In ther web user interface, click on the administration drop down, then choose user accounts. You can add/edit/delete in here.

4) LLDP (Link Layer Discovery Protocol) and CDP (Cisco Discovery Protocol) allow the switch to automatically discover its directly connected neighbors and see each other's abilities and settings. Do you use other Cisco devices on your network or IP phones? For example, the voice vlan can be automatically determined using LLDP/CDP.  Please see p. 53 in the SG200 manual here for further detail.

5) System time can be set under administration -> time settings -> system time.

Best,

David

Please rate any helpful posts.

nathanparker Fri, 06/22/2012 - 14:28

Thanks for the info on the firmware. I'm all updated now.

Not sure if we have NAT turned on yet or not since I just got the router yesterday (RV042G). We might have to turn on NAT or UPnP since we're wanting to use Back to My Mac with iCloud.

My Macs are showing both IPv4 and IPv6 addresses in the network settings. We're not heavily using IPv6 for now since IPv4 works, but we're just wanting to be future proof when our ISP turns on IPv6 and be ready for it.

When I try to edit the "cisco" user acccount and change the name to my desired user account name, it's not changing. "cisco" just comes up in the drop down menu with no way to edit the username, just the password.

On our network, we are using the Cisco DPC3010 cable modem, Cisco RV042G router, and the Cisco SG200-08 switch. We're also using the Cisco SPA112 ADA for our VOIP service but probably going to swap it out for a Polycom KIRK 300 server with a couple of DECT handsets. With that info, anything we need to use LLDP-CDP for?

I want to use the SNTP server I believe for the System Time. Do I need to set it to Unicast or Broadcast? Do I need to enable DCHP on the TZ source? Anything else I need to input for DST?

Thanks again for your help!

Davidwagman1 Fri, 06/22/2012 - 14:53

Hi Nathan,

My guess is that NAT is already on - you have one public IP address from your ISP. Your router will use NAT (network address translation) to allow multiple clients (and either dynamically assign them private IPs via dhcp or you set them statically) to connect to the internet using the one public IP. It also sounds like your RV042G is assigning both ipv6 and ipv4 addresses, and theres nothing wrong with that. Unless you have specific information re: ipv6 from your isp, however, I would suggest not worrying about it until you hear from them. Are your macs connected to the router via the SG200 switch? If so, it looks like its passing ipv6 just fine.  UPnP is something completely different - thats with opening ports like you mentioned - its a way that your devices can communicate with the router to automatically enable the proper port forwarding for the device/application.

Regarding the username, create a new user account. I don't think you can edit the cisco user, but try deleting it after creating and testing a new user account..

I'm not familiar with the Polycom system, but I would leave the settings as default unless you are using true IP phones (rather than an ATA adapter). From a quick google of the polycom device, I don't think you will gain anything from LLDP/CDP as the handsets use regular cordless phone freqs. With my setup, we use cisco IP desk phones and cordless wifi phones, CDP makes life easy as the cisco access point, wifi phones, cisco switch, and cisco desk phones (connected via ethernet) see each other and know what they're dealing with automatically.

I don't see the SNTP setting for unicast / broadcast that you're looking at. For the switch to get the time from a sntp server, under administration -> time -> sntp settings, add a server, and then back on time-> system time, enable sntp server as the main clock source. What are you using as your sntp source? Do you have an internal sntp server? You don't need to enable dhcp on the sntp server.

May I also point you to the two manuals, I think they may be helpful:  RV042G  & SG200

Hope thats helpful.

Best,

David

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nathanparker Fri, 06/22/2012 - 15:57

We do have a Public IP from the ISP (would have to out where to look on the RV042G for it). When I go to iCloud Back to My Mac Preferences, it's saying to turn on NAT or UPnP on the router (for better performance), so not sure if NAT's on our not, but I'm pretty sure UPnP isn't.

Yep, I believe the RV042G is spitting out both IPv4 and IPv6 addresses, so we're future proof there.

Sounds good on the settings. Probably won't mess with them unless our ISP tells us.

The Macs are connected to the SG200-08 with the SG200-08 connected to the RV042G. I believe you're right, all is well on IPv6.

Sounds good on the user accounts. I'll try that and let you know how it goes.

The Polycom won't even be plugged into the SG200-08 if we get it. It'll be plugged directly into the RV042G and I have QoS all set there. The Polycom will be an IP phone through Ethernet but DECT for the cordless part. No Wi-Fi or anything else fancy.I'd like to use a Cisco IP desk phone and a Polycom cordless phone, but RingCentral says it'd clash on the network. Sounds like I don't need to worry about the LLDP/CDP settings.

Sounds good on the manuals and time settings. I'll dig around and see how it goes!

Thanks again!

nathanparker Fri, 06/22/2012 - 16:06

Seems Cisco won't let you remove the default cisco account but I did change the pwd on it and created a different account with my desired username/pwd. That's working OK.

Is there anything I need to do to the GMT Time Zone Offset under the Time Settings?

Thanks!

Davidwagman1 Fri, 06/22/2012 - 17:22

Hi Nathan,

I am able to delete the cisco user on my SG300, but the firmware is slightly different. Maybe try updating to the latest firmware and try again? If that doesn't work, and I don't know how important that is to you, but you can double check with cisco small business support. They are top notch. You can also reach them via online chat.

In System Time, I have the time zone offset set to UTC-5 (which is EST for me). I enabled daylight savings and put the offset to 60 and USA.

You are definitely using NAT unless you have a bunch of public IPs, one per machine to be specific. To enable UPnP (p48 of the manual), on the Router, go to Setup -> UPnP and set to yes and save. You can add entries as necessary if your device doesn't automatically.

It doesn't sound like you'd benefit from LLDP/CDP with your current setup. I've never used ring central's service, but if you want to talk about voip options to get you a cisco desk phone, we can... Just a guess, it sounds like you have one "line" with ring central, and they probably don't want to let you register 2 IP phone devices to the same line.

Best,

David

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nathanparker Fri, 06/22/2012 - 18:54

Even with the latest firmware deleting the cisco user doesn't work. It's fine though. I can still create a custom account and be good. Not a major deal there.

Tweaked my DST settings for CST, but it's strange because my switch is showing the date for 1970. Should I post a screenshot of my settings so you can see what it's doing?

Sounds good about UPnP. I'll give that a spin and see how it goes.

Yeah, that's the issue with RingCentral. They don't want 2 IP phones as a single line. That's why we're stuck needing a Polycom cordless system. I like the Cisco Desk Phones and wish there was a way to use them and a cordless at once.

Thanks again!

Davidwagman1 Fri, 06/22/2012 - 19:16

Hi Nathan,

In system time, make sure you enable Main Clock Source(SNTP Servers), and apply. Then add a ntp server under sntp settings and enable polling. Save the config then check to see if it's polling the server. If its not working at that point, screenshots would be helpful.

Best,

David

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nathanparker Fri, 06/22/2012 - 19:22

Here's my screenshots of what's going on so far. Thanks again for your help!

Davidwagman1 Fri, 06/22/2012 - 19:30

Nathan,

Edit one of the ntp servers to enable polling. It looks like its showing polling mode disabled.

Best,

David

Sent from Cisco Technical Support iPad App

Please rate helpful posts.

nathanparker Fri, 06/22/2012 - 20:22

That worked but I'm now getting tomorrow's date. Do I need to asjust my TZ settings for CST?

Davidwagman1 Sat, 06/23/2012 - 06:24

Hi Nathan,

In your last screenshot, GMT time zone offset is set to -5 (EST), please change to -4 (I think) for CST.

Best,

David

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nathanparker Sat, 06/23/2012 - 10:20

That helped. Got me on the right date. Still two hours ahead, but closer.

Davidwagman1 Sat, 06/23/2012 - 10:39

Nathan,

Weird. I also just noticed that in the screenshot above it said +5 (as in Pakistan, Uzbekistan time zone). I just want to double check you're on minus (-4) which should be CST but in reality right now its CDT (central daylight time -5) but the daylight savings offset of 60 mins should do that for you. Everything else in those screenshots look ok, but feel free to post updated ones. Also, you can try disabling polling on one and trying a different NTP server.

Best,

David

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Davidwagman1 Sat, 06/23/2012 - 11:22

Nathan,

Hows it look under SNTP settings? Maybe try disabling DST and see if you can get it correctly set to CDT rather than CST under GMT time zone offset, and try to narrow down if its a problem with the ntp server or the DST settings.

Best,

David

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nathanparker Sat, 06/23/2012 - 14:56

Here's my SNTP screen. Let me know what to do and I'll sure do it. Thanks again for all your help!

Davidwagman1 Sat, 06/23/2012 - 15:09

Nathan,

I feel like an idiot. I told you to change it to GMT -4? Nope. CST is -6. That would explain the 2 hour error. Should have looked that up rather than guessed and wasted our time. So sorry.

Best,

David

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nathanparker Sat, 06/23/2012 - 16:47

It is not a problem at all! I'm still totally new to smart switches, so I know a whole lot less than you do on it and still learning as I go. That fixed the issue and now we're back. Thanks again for all your help and I sure appreciate it!

Davidwagman1 Sat, 06/23/2012 - 16:53

Glad to help Nathan.  I also posted in your other thread re: ip phone suggestions, let me know what you think.

Enjoy the new tech, it will serve you well. Thank you for all the high ratings.

Best,

David

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Posted June 21, 2012 at 11:16 PM
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