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Bayley
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CRS328-24G-2S+ dhcp issues ether 1

Tue May 10, 2022 9:29 pm

Ether 1 is setup to be my dhcp client for my internet service provider but keeps loosing it's ip address many times a day and I dont know what to do i have fought with comcast over and over about this issues.
 
erlinden
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Re: CRS328-24G-2S+ dhcp issues ether 1

Tue May 10, 2022 9:50 pm

Would be very helpful if you add your configuration:

/export hide-sensitive file=anynameyoulike
 
Bayley
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Re: CRS328-24G-2S+ dhcp issues ether 1

Tue May 10, 2022 10:07 pm

..l
Last edited by Bayley on Tue May 10, 2022 10:18 pm, edited 1 time in total.
 
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Re: CRS328-24G-2S+ dhcp issues ether 1

Tue May 10, 2022 10:12 pm

You have posted your private data....
 
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Re: CRS328-24G-2S+ dhcp issues ether 1

Tue May 10, 2022 10:13 pm

@erlinden
Would be very helpful if you add your configuration:

/export hide-sensitive file=anynameyoulike
When ask something like that, remember to the user to remove sensitive data inside the posted config...
 
erlinden
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Re: CRS328-24G-2S+ dhcp issues ether 1

Wed May 11, 2022 9:06 am

When ask something like that, remember to the user to remove sensitive data inside the posted config...
Will do, though some info will be removed by adding the hide-sensitive flag (depending on the RouterOS version).
 
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Re: CRS328-24G-2S+ dhcp issues ether 1

Wed May 11, 2022 9:46 am

When ask something like that, remember to the user to remove sensitive data inside the posted config...
But isn't that what hide-sensitive does ?
 
erlinden
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Re: CRS328-24G-2S+ dhcp issues ether 1

Wed May 11, 2022 9:49 am

But isn't that what hide-sensitive does ?
Partially, MAC addresses will still remain (as well as any public IP address if configured). And probably some more...
 
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Re: CRS328-24G-2S+ dhcp issues ether 1

Wed May 11, 2022 9:53 am

Indeed...
I have not noticed that...
 
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Re: CRS328-24G-2S+ dhcp issues ether 1

Wed May 11, 2022 11:13 am

@erlinden
But isn't that what hide-sensitive does ?
Partially, MAC addresses will still remain (as well as any public IP address if configured). And probably some more...
except some extremely rare exceptions, MAC address is NEVER a sensitive data...

@<all>
What are present on that particular user export are: email, serial number, cloud IP, and some passwords...

My PC have F8:1A:67:00:1F:55 as MAC, and my RouterBOARD have CC:2D:E0:31:13:8E
and now? What "sensitive" data you can obtain?
Is just one example, is not for teaching, but for try to explain the useless fear against MAC address (except some rare cases, but often require physical access to LAN...)
 
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Re: CRS328-24G-2S+ dhcp issues ether 1

Wed May 11, 2022 11:29 am

Your MAC address could be (ab)used for MAC spoofing.
 
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Re: CRS328-24G-2S+ dhcp issues ether 1

Wed May 11, 2022 12:10 pm

But isn't that what hide-sensitive does ?
Partially, MAC addresses will still remain (as well as any public IP address if configured). And probably some more...
... like serial number, which serves as hostname part of FQDN used in mikrotik's own DDNS. Which can represent much larger attack surface than WAN interface's MAC address.

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