Timeline for How to configure DHCP pools for 2 VLANs/subnets sharing a switch
Current License: CC BY-SA 4.0
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| Apr 24, 2019 at 3:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 25, 2018 at 9:47 | comment | added | Ron Maupin♦ | Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you can provide and accept your own answer. | |
| Dec 25, 2018 at 3:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Nov 25, 2018 at 3:02 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 26, 2018 at 2:17 | answer | added | Ron Maupin♦ | timeline score: 1 | |
| Oct 26, 2018 at 2:10 | comment | added | Ron Maupin♦ |
I would also say that for a network depicted in the diagram you should really use a real DHCP server, especially if you have wireless networks. The DHCP server built into the Cisco devices is pretty minimal, and it doesn't support advanced features that you should be using. Then, all you need to do is to set up a DHCP relay (ip helper-address) on each VLAN to point to the DHCP server.
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| Oct 26, 2018 at 2:07 | comment | added | Ron Maupin♦ |
But, you have 10.0.0.1 as the default router for some of the DHCP pools. Your whole DHCP setup is really messed up. You should remove the pools that conflict, and make sure that the default routers are in the same network as the network for the pool.
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| Oct 26, 2018 at 2:05 | comment | added | voices | @RonMaupin Just uploaded a diagram. I'm relatively new at this. VLAN 425 isn't set up yet. I anticipated problems with it, because it starts @ 10.0.0.1, and wasn't sure if i had to reserve that address for the L3 switch, or if it would cause some kind of conflict. | |
| Oct 26, 2018 at 1:59 | comment | added | Ron Maupin♦ | I also do not understand running RIP. There do not seem to ba any other routers connected to the layer-3 switch. | |
| Oct 26, 2018 at 1:58 | history | edited | voices | CC BY-SA 4.0 |
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| Oct 26, 2018 at 1:56 | comment | added | Ron Maupin♦ | You have some problems. First, you do not need to exclude the router address from the DHCP pool, it already does that. Next, you cannot have a default router in a different network as you do for some of the DHCP pools. Third, you do not even have a default router for the DHCP pool 425. Fourth, you have conflicting DHCP pools. Fix those things, then let us know what happens. | |
| Oct 26, 2018 at 1:54 | history | edited | voices | CC BY-SA 4.0 |
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| Oct 26, 2018 at 1:46 | history | edited | Ron Maupin♦ | CC BY-SA 4.0 |
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| Oct 26, 2018 at 1:44 | comment | added | Ron Maupin♦ |
That's good. How are the switches connected (you didn't include a description or diagram)? You should really use the description on the interfaces to explain to which other network device a switch interface is connected. You could also include a show cdp neighbor for each device.
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| Oct 26, 2018 at 1:42 | history | reopened | Ron Maupin♦ | ||
| Oct 26, 2018 at 1:39 | history | edited | voices | CC BY-SA 4.0 |
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| Oct 26, 2018 at 0:39 | comment | added | Ron Maupin♦ | I explained what we are looking for in my first comment, and I pointed you to the checklist. If you at least give us the network description (what devices are connected to what interfaces), the device models, and the device configurations, we should have an answer pretty quickly. It is probably just a configuration error. If there is any more information we need, we will ask. | |
| Oct 26, 2018 at 0:17 | comment | added | Ron Maupin♦ | There can be no actual answers unless we have more information. If you are looking for speculation and guesses, then you are in the wrong place. We are more than willing to help, but we need something with which we can work. It is probably something simple in your configuration, but you have not shared that. | |
| Oct 25, 2018 at 23:44 | history | closed | Ron Maupin♦ | Needs more focus | |
| Oct 25, 2018 at 23:44 | comment | added | Ron Maupin♦ | You need to provide more information. Speculation and guessing are off-topic here. We need a good network description or diagram, the network device models, and the network device configurations. Please refer to the Network Engineering Question Checklist for guidance, then edit your question to provide the necessary information. | |
| Oct 25, 2018 at 23:42 | history | asked | voices | CC BY-SA 4.0 |