Hi Inga, >--------- Original Message --------- >Sender : Anupam Roy <anupam.r@xxxxxxxxxxx> Staff Engineer/Application S/W Group /SRI-Delhi/Samsung Electronics >Date : 2020-03-27 11:07 (GMT+5:30) >Title : RE: Re: Mesh Key Refreshment procedure from Config client > >Hi Inga, > >> >>Hi Anupam, >> >>On Thu, 2020-03-26 at 20:22 +0530, Anupam Roy wrote: >>> Hi , >>> Presently, I am trying to check *Key Refreshment Procedure* from Mesh Config client. >>> >>> For checking the operation, I did following steps >>> - Create Subnet in Config client at Net index 1 >>> - Add SubNetKey to Local Node at Net Index 1 >>> - Add SubNetKey to Remote Node at Net Index 1 >>> >> >>Please try to add two steps more here: >> - Update Subnet 1 (subnet-update command in main menu) >I missed mentioning above step in my email. Actually, before updating netkey to remote, I did update local subnet. >But yes, I missed out below step (Updating netkey to local node). Will give it a try now. Much thanks! > After updating the Netkey to the local node(config client) and then to the remote node, I monitored the beaconing key used by local config client. Please note that since, only two netkeys are at presently configured in both the nodes, therefore, the key ID's are 1 (for primary netkey at index 0), 2(For Netkey at index 1) & 3(For new NetKey at index 1). After NetKey update, The KR phase in both sides are set to 1, but it seems, the new key id (which is 3 in this case) is still *NOT used for beaconing, by the 'Config Client node' Config Client still keeps on beaconing with key ID 1 & 2. Sharing a bit of logs for your reference. During NetKey Update- mesh/cfgmod-server.c:cfg_srv_pkt() CONFIG-SRV-opcode 0x8045 size 18 idx 000 key refresh phase 1: Key ID 3 Beacon Keys after NetKey update on remote Node - mesh/net-keys.c:snb_timeout() beacon 2 for 1 nodes, period 30, obs 2, exp 3 mesh/net-keys.c:snb_timeout() beacon 1 for 1 nodes, period 20, obs 2, exp 2 Please share your opinion to check the issue further. Thank You >> - Update NetKey 1 for a local node (switch to config menu) >> >>> - Update Netkey to remote Node in Net index 1 >>> >>> After updating the Netkey, I believe, config client has to either send out SNB with KeyRefreshment(KR) Flag=1 & secured with updated NetKey (i.e by subnet->net_key_upd id) >>> or send out "Config Key Refresh Phase Set" with transition parameter, set to 2. I could not find the later provision in cfgclient menu. >>> However, Config Client seems to be not sending out Secure Network Beacon as well. So KR procedure seems to be not progressing at my setup at present. >>> >>> Any hint of what could be missing will be really helpful! Thank You. >>> >> >>Best Regards, >>Inga BR, -Anupam Roy
