If the externally-reachable network is intended for the IOT devices to connect to, they may well be using IP addresses only. Call it the "DMZ network" or "external network".
They probably have a "management network" that goes to different interfaces, and which has DNS services for their own convenience. I've seen setups like this internet --> DMZ network --> host <- management network <- firewall <- office network --dave On 2/28/23 15:28, Stewart Russell via talk wrote: Thanks, all. Yes, there has to be a DNS, but there's a chance that 1. we haven't been told what it is; 2. our connection/hardware hasn't been authorized to connect to it or know what it is (yes, it's that kind of place) There is no other internet connection. We've been given a host name, not an internal IP address to connect to. We're also hearing that we're the first folks connecting via this ultra-locked down LTE network for IOT devices, so maybe they forgot to provision some services On Tue, Feb 28, 2023 at 3:11 PM Alvin Starr via talk <talk@gtalug.org<mailto:talk@gtalug.org>> wrote: PPP does not require a dns server address to be provided. But most folks do provide one because it would make for LOTS of support calls to not hand out your DNS servers. Is there a DNS on the network that your connecting to at all? If not then you wll likely be forecd to use the /etc/hosts file to add in the IP addresses of the target systems. On 2023-02-28 14:50, Stewart Russell via talk wrote:
Hey - we've got a fun little problem happening right now. We're connecting a Linux box via LTE to a client's private network. They want us to connect to a host on that network and upload files via sftp. We've demonstrated that all of this works with every other LTE network, but in their walled garden LTE network, they're not returning any DNS server, so we can't find the host at all. This network does not have access to public DNS. Does one usually have to poke a ppp connection a little more to get useful routing information, or should we have "just got" all the gateway and DNS details on first connection? Stewart (as you can tell, I'm not a network person, but we might appreciate finding one and paying for support) --- Post to this mailing list talk@gtalug.org<mailto:talk@gtalug.org> Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
-- Alvin Starr || land: (647)478-6285 Netvel Inc. || Cell: (416)806-0133 al...@netvel.net<mailto:al...@netvel.net> || --- Post to this mailing list talk@gtalug.org<mailto:talk@gtalug.org> Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk -- http://scruss.com/blog/ - 73 de VA3PID --- Post to this mailing list talk@gtalug.org<mailto:talk@gtalug.org> Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk -- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some people and astonish the rest dave.collier-br...@indexexchange.com<mailto:dave.collier-br...@indexexchange.com> | -- Mark Twain CONFIDENTIALITY NOTICE AND DISCLAIMER : This telecommunication, including any and all attachments, contains confidential information intended only for the person(s) to whom it is addressed. Any dissemination, distribution, copying or disclosure is strictly prohibited and is not a waiver of confidentiality. If you have received this telecommunication in error, please notify the sender immediately by return electronic mail and delete the message from your inbox and deleted items folders. This telecommunication does not constitute an express or implied agreement to conduct transactions by electronic means, nor does it constitute a contract offer, a contract amendment or an acceptance of a contract offer. Contract terms contained in this telecommunication are subject to legal review and the completion of formal documentation and are not binding until same is confirmed in writing and has been signed by an authorized signatory.
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