Re: dhcp-users Digest, Vol 146, Issue 10

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Re: dhcp-users Digest, Vol 146, Issue 10

Pat Dery
Hi

did you try switching the configurations between the two ethernet card ?

setting 192.168.10.2 on the enp0s3 card

Patrick

Le 2020-12-22 à 07:00, [hidden email] a écrit :

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>     1. Re: DHCPd using wrong interface ([hidden email])
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> Message: 1
> Date: Tue, 22 Dec 2020 19:07:49 +1100
> From: [hidden email]
> To: Users of ISC DHCP <[hidden email]>
> Subject: Re: DHCPd using wrong interface
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> Content-Type: text/plain; charset=UTF-8; format=flowed
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> Hi Dan
>
> Which bind server is it trying to update? Those updates are sent as
> unicast packets and are subject to normal routing rules. Perhaps it's
> trying to update the ISP's DNS server?
>
> Can you use tcpdump to see what the destination IP address is?
>
> regards,
> Glenn
>
> On 2020-12-19 18:23, Dan Egli wrote:
>> I am completely stumped on how to solve this one. I have a machine
>> with two NICs. It's my gateway machine between my home private LAN and
>> the internet. The gateway machine has enp0s3 with an address of
>> 10.0.2.15 as it's world facing address (yes, my ISP wants to run
>> everything through NAT. Don't ask me why). The LAN address range is
>> `192.168.10.0/24 on enp0s8.? I configured dhcpd to completely ignore
>> anything coming from 10.0.0.0/8, and I even have enp0s8 listed on the
>> command line (and NOT enp0s3). Yet when dhcpd tries to send update
>> requests to bind, it keeps using the 10.0.2.15 address, which bind
>> properly refuses to listen to. How do I make dhcpd send messages from
>> enp0s8's 192.168.10.2 address vs the 10.0.2.15 address?
>
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> End of dhcp-users Digest, Vol 146, Issue 10
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Re: dhcp-users Digest, Vol 146, Issue 10

Dan Egli
On Tue, Dec 22, 2020 at 08:11:04AM -0500, Patrick Fortin wrote:
> Hi
>
> did you try switching the configurations between the two ethernet card ?
>
> setting 192.168.10.2 on the enp0s3 card
I suppose I could try that. Seems rather pointless to simply reverse the cards, but stranger things have happened. I'll try that and get back to you.


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