[Mikrotik] dhcp-client always "searching"

Josh Luthman josh at imaginenetworksllc.com
Mon Apr 16 17:51:10 CDT 2012


Just enable it on an interface.  It will pop up with a list of MACs
that have a dhcp server on them (that the client sees).

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373



On Mon, Apr 16, 2012 at 6:47 PM, Bill Prince
<part-15 at skylinebroadbandservice.com> wrote:
> I've never used the dhcp-server alert tool.  Is there a wiki page or
> something on the care and feeding?
>
> However, I've got the log open, as well as  the leases list open on the
> server.  I never see an offer or anything on the server, so I suspect the
> DHCP request is never happening.
>
> bp
>
>
>
> On 4/16/2012 3:36 PM, Josh Luthman wrote:
>>
>> Shouldn't, no.  My home router has an IP static and then I use DHCP
>> for testing and such.
>>
>> Does the dhcp-server alert tool complain that there is a DHCP server
>> found?  Does the DHCP server create any lease and say it offered a
>> lease?
>>
>> Josh Luthman
>> Office: 937-552-2340
>> Direct: 937-552-2343
>> 1100 Wayne St
>> Suite 1337
>> Troy, OH 45373
>>
>>
>>
>> On Mon, Apr 16, 2012 at 6:27 PM, Bill Prince
>> <part-15 at skylinebroadbandservice.com>  wrote:
>>>
>>> What I'm wondering is whether the existing IP is getting in the way?
>>>
>>> The old setup was a static IP on ether1.  We're renumbering everything
>>> (new
>>> block from ARIN), and rather than do statics, I thought it would save
>>> time
>>> to just set them to dhcp clients on a subnet-by-subnet basis.
>>>
>>> The existing IP has a default route set.
>>>
>>> So I did not delete or disable the old IP, I just wanted to test the
>>> dhcp.
>>>
>>>
>>> bp
>>>
>>>
>>>
>>> On 4/16/2012 3:13 PM, Bill Prince wrote:
>>>>
>>>> The working clients are just plain Canopy SMs.  Set to DHCP client w/NAT
>>>> and the DNS passing through to the LAN.
>>>>
>>>> There are 6 APs attached to a CMM micro between the Mikrotik and the
>>>> APs.
>>>>  Same collision domain.  One of the mikrotik clients is on the same AP
>>>> as
>>>> one of the Canopy SM clients.  The other mikrotik client is on a
>>>> different
>>>> AP, but same collision domain.
>>>>
>>>> I can ping the IP of the mikrotik router from the client.
>>>>
>>>> bp
>>>>
>>>>
>>>> On 4/16/2012 3:07 PM, Josh Luthman wrote:
>>>>>
>>>>> The clients that are working - what are they?  Are they in the same
>>>>> collision domain?
>>>>>
>>>>> What's the network look like between the dhcp server and the working
>>>>> and non working clients?
>>>>>
>>>>> Josh Luthman
>>>>> Office: 937-552-2340
>>>>> Direct: 937-552-2343
>>>>> 1100 Wayne St
>>>>> Suite 1337
>>>>> Troy, OH 45373
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Apr 16, 2012 at 6:01 PM, Bill Prince
>>>>> <part-15 at skylinebroadbandservice.com>    wrote:
>>>>>>
>>>>>> I believe the server is ready and waiting.  There are other
>>>>>> (non-mikrotik)
>>>>>> clients working on the subnet, and there are approximately 198 unused
>>>>>> IPs.
>>>>>>
>>>>>> The Mikrotik DHCP server is running on ROS 3.11.  I've got one
>>>>>> mikrotik
>>>>>> client on ROS 3.17, and another on ROS 4.17; neither one of them is
>>>>>> working.
>>>>>>  They're both just "searching".
>>>>>>
>>>>>> bp
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 4/16/2012 2:57 PM, Josh Luthman wrote:
>>>>>>>
>>>>>>> Something is blocking it then.  Are you sure you have the client on
>>>>>>> the correct interface?  Is the server ready to go with IPs left in
>>>>>>> the
>>>>>>> pool?
>>>>>>>
>>>>>>> Josh Luthman
>>>>>>> Office: 937-552-2340
>>>>>>> Direct: 937-552-2343
>>>>>>> 1100 Wayne St
>>>>>>> Suite 1337
>>>>>>> Troy, OH 45373
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Apr 16, 2012 at 5:53 PM, Bill Prince
>>>>>>> <part-15 at skylinebroadbandservice.com>      wrote:
>>>>>>>>
>>>>>>>> I've never used the dhcp-client until today.  However, it doesn't
>>>>>>>> seem
>>>>>>>> to
>>>>>>>> be
>>>>>>>> working.  All it does is "searching", and there is no hint of a
>>>>>>>> request
>>>>>>>> on
>>>>>>>> the dhcp-server side.
>>>>>>>>
>>>>>>>> What am I missing?
>>>>>>>>
>>>>>>>> If there is a valid (and working) IP (on a different subnet) on the
>>>>>>>> same
>>>>>>>> interface does the dhcp-client get wiggy or something?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> bp
>>>>>>>>
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>>>>>>>> RouterOS
>>>>>>>
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>>>>>>>
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>>>>>
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>>>>>
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>>
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>>
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