Hi - I have two nodes spaced apart so they can communicate with each other but the farthest (can’t talk to the BR. So it is a test of RPL linking them up. The first node (:6769) is a samr30 xpro up a tree! running https://github.com/kmartinez/myRIOT/tree/master/gnrc_networking The furthest away (5a6e) is a custom samr30 running https://github.com/kmartinez/myRIOT/tree/master/3yp_node_coap.
The border router says:
nib route
2001:fdfd::/64 dev #5
2001:fdfd::bcf1:5134:4751:6769/128 via fe80::bcf1:5134:4751:6769 dev #5
2001:fdfd::ec26:3905:43b7:5a6e/128 via fe80::bcf1:5134:4751:6769 dev #5
default* via fe80::1 dev #6
Which looks perfect.
the furthest away says:
2020-12-10 16:24:56,548 # nib neigh
2020-12-10 16:24:56,551 # fe80::bcf1:5134:4751:6769 dev #5 lladdr BE:F1:51:34:47:51:67:69 router REACHABLE GC
----- looks good!
020-12-10 16:25:17,650 # rpl
2020-12-10 16:25:17,667 # instance table: [X]
2020-12-10 16:25:17,668 # parent table: [X] [ ] [ ]
2020-12-10 16:25:17,668 #
2020-12-10 16:25:17,670 # instance [0 | Iface: 5 | mop: 2 | ocp: 0 | mhri: 256 | mri 0]
2020-12-10 16:25:17,683 # dodag [2001:fdfd::58a4:8450:8511:6445 | R: 768 | OP: Router | PIO: on | TR(I=[8,20], k=10, c=5, TC=2278s)]
2020-12-10 16:25:17,685 # parent [addr: fe80::bcf1:5134:4751:6769 | rank: 512]
It can ping its neighbour:
2020-12-10 16:26:09,024 # ping fe80::bcf1:5134:4751:6769
2020-12-10 16:26:09,089 # 12 bytes from fe80::bcf1:5134:4751:6769%5: icmp_seq=0 ttl=64 rssi=-77 dBm time=57.478 ms
But the BR can’t ping it it is so wierd! Has anyone seen this behavour before? I notice the RSSI are all quite low - but… ping is lossless from BR to node1 and from node2 to node1
Thanks!