Missing DODAG configuration

[smlng]

Unstrung does not send a DODAG configuration option, as described in RFC 6550 6.7.6.

Though, I also thought its optional on first read, it finally states

This option ... MUST be included in response to a unicast request, e.g. a
unicast DODAG Information Solicitation (DIS) message.

This issues popped up when I tried to run sunshine RPL with some sensor nodes running RIOT. RIOT is expecting this option and by default will discard any DODAG without it, as a workaround i compiled RIOT with CFLAGS += -DGNRC_RPL_DODAG_CONF_OPTIONAL_ON_JOIN.

[mcr]

Just to ack your report.

[smlng]

@mcr any plans to implement this feature in the near future? I would offer my help on this, though I have other task on my list as well - so no guarantees 😄

[mcr]

@sming, if "near future" you mean before end of June. No. By end of September, definitely.

[smlng]

No, June wasn't my time frame either ... September sounds good! If you need help, e.g., interop tests with the RPL implementation in RIOT-OS, I'm in.