I apologize for thinking too suddenly about a bug. Actually it was enough to set LWIP_NETIF_EXT_STATUS_CALLBACK to have the expected behavior. I apologize again.
best regards Max On Mon, Mar 14, 2022 at 3:49 PM massimiliano cialdi via lwip-users <lwip-users@nongnu.org> wrote: > > continuing to read RFC 6762 at section 8.4 > (https://datatracker.ietf.org/doc/html/rfc6762#section-8.4) I find: > > > At any time, if the rdata of any of a host's Multicast DNS records > changes, the host MUST repeat the Announcing step described above to > update neighboring caches. For example, if any of a host's IP > addresses change, it MUST re-announce those address records. > > > This is exactly the case I was describing. > I have tested both the 2.1.3 release of lwip and the current master. In > both cases mDNS doesn't re-announce. > > > I believe this can be considered a bug. > > > best regards > > Max > > > > Massimiliano Cialdi > FIRMWARE ENGINEERING PROFESSIONAL LEADER > > Powersoft S.p.A. > Via E. Conti, 5 - Scandicci (Fi) 50018 - Italy > OFFICE: +39 055 7350230 > > > > > > > On 14/03/22 11:02, massimiliano cialdi wrote: > > > > hello, > > > > In RFC 6762 I find (section 8): > > > > > > "Whenever a Multicast DNS responder starts up, wakes up from sleep, > > receives an indication of a network interface "Link Change" event, or > > has any other reason to believe that its network connectivity may > > have changed in some relevant way, it MUST perform the two startup > > steps below: Probing (Section 8.1) and Announcing (Section 8.3)." > > > > > > Does the IP change fall under one of the reasons for reannouncement? > > In my opinion it should but I'm not sure. I mean, if I set > > LWIP_DHCP_AUTOIP_COOP and assigned a link-local address, and then a > > dhcp server is turned on, my IP address changes. I believe that this > > should require sending a new announcement to inform of the newly > > acquired IP. > > > > Lwip doesn't seem to act like that, but I don't know if it should. > > What do you guys think? > > > > > > best regards > > > > Max > > > _______________________________________________ > lwip-users mailing list > lwip-users@nongnu.org > https://lists.nongnu.org/mailman/listinfo/lwip-users -- Et nunc, auxilium solis, vincam! Oppugnatio solaris! VIS! Massimiliano Cialdi cia...@gmail.com _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users
