On Wed, 20 Oct, 2021, 11:21 Geert Stappers via Dnsmasq-discuss, < dnsmasq-discuss@lists.thekelleys.org.uk> wrote:
> On Wed, Oct 20, 2021 at 07:50:58AM +0530, Shrenik Bhura wrote: > > On Tue, 19 Oct 2021 at 21:01, Dominik Derigs <dl...@dl6er.de> wrote: > > > > > Hey Shrenik, > > > > > > On Tue, 2021-10-19 at 17:20 +0530, Shrenik Bhura wrote: > > > > Option 12 hostname sent to RPi is the first octet of the IP > > > > address. This seems incorrect. > > > > > > This can very well be desired behavior (if the hostname is set to > > > "192"). Can you quote your configuration and related files (e.g. > > > if you are using dhcp-hostsfile or dhcp-hostsdir)? > > > > > > Best, > > > Dominik > > > > > > > Hi Dominik, > > Hello Archive visitor, > Hello Mailinglist subscriber, > > > > There isn't anything specific in the configuration that serves the > > hostname. I am aware of this feature and when defined it works as > desired. > > But when nothing is explicitly defined to serve hostnames, it is > defaulting > > to 192 as visible in the logs, and only in the case of an RPi. > > When checked on the client with the hostname command, it shows the full > > hostname - 192.168.67.53 > > Such hostname do I call IPaddress. > > > > The same configuration works fine with a x86 system as no hostname is > being > > served when none is defined. > > > > Also it would be ideal to improve the logs as well to reflect the full > > hostname, if at all. > > > > Have attached the config files involved. > > Make a packet capture and put the .pcap on a server. > Then tell here how to fetch the file. > Next can those who care examine the .pcap with their tool. > (wireshark / tcpdump) > > > Once again, do note that this is the case only for an RPi. So there is > some > > specific logic in dnsmasq coming into play for an RPi that seems to be > > serving the IP address as the default hostname when none is present. > > So beside the > /sbin/tcpdump -w rpi.pcap ether host dc:a6:32:78:98:ae > also > /sbin/tcpdump -w worksfine.pcap ether host MAC_address_of_known_good > > > > Best, > > Shrenik > > Please make it possible to read in the discussion. Show the world > that you understand the concepts like "timezone" and "one to many > communication". In other words: the response goes below previous text. > > > Groeten > Geert Stappers > -- > Silence is hard to parse > > _______________________________________________ > Dnsmasq-discuss mailing list > Dnsmasq-discuss@lists.thekelleys.org.uk > https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss Hello All, Apologies and thanks Geert for the wake up note on the mailing list posting etiquette. > > hostname - 192.168.67.53 > Such hostname do I call IPaddress. Sure, you may when coincidentally the string returned as a hostname is equivalent to the IP address notation. ;) Herein is the link to the related packet captures of an RPi and x86 system - https://drive.google.com/file/d/11RwpCdbE8W0ohS2QDj4BarZ_VHnEhwfs/view?usp=sharing Regards / Groeten, Shrenik
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