[Babel-users] Infinite txcost on wireless interface

Christian Stewart christian at paral.in
Fri Jun 10 23:11:22 UTC 2016


Hi all,
I'm trying to use babeld over a ad-hoc wifi network. I have three devices in the
network. I can ping all of them without babeld running. Two of the devices can
talk to each other with babeld running on all three of the devices. However on
the third, the txcost seems to always be infinite:
My id 3e:15:c2:ff:fe:de:3b:18 seqno 57365 Neighbour fe80::76da:38ff:fe26:cdc3 dev wlp0s20u1 reach ffff rxcost 256 txcost
65535 rtt 0.000 rttcost 0 chan 1. Neighbour fe80::76da:38ff:fe26:cdc0 dev wlp0s20u1 reach fdff rxcost 260 txcost
65535 rtt 0.000 rttcost 0 chan 1. 172.17.0.1/32 from ::/0 metric 0 (exported) 10.110.1.4/32 from ::/0 metric 0 (exported) 10.110.1.0/24 from ::/0 metric 65535 (65535) refmetric 128 id
fc:e4:71:fb:2a:3c:63:11 seqno 39059 age 15 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc0 nexthop 10.110.1.2 (installed) 10.110.1.0/24 from ::/0 metric 65535 (65535) refmetric 128 id
1c:be:71:b3:43:ca:76:85 seqno 38852 age 9 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc3 nexthop 10.110.1.3 (feasible) 10.110.1.2/32 from ::/0 metric 65535 (65535) refmetric 0 id
fc:e4:71:fb:2a:3c:63:11 seqno 39059 age 15 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc0 nexthop 10.110.1.2 (installed) 10.110.1.2/32 from ::/0 metric 65535 (65535) refmetric 256 id
fc:e4:71:fb:2a:3c:63:11 seqno 39059 chan (255) age 9 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc3 nexthop 10.110.1.3 (feasible) 10.110.1.3/32 from ::/0 metric 65535 (65535) refmetric 256 id
1c:be:71:b3:43:ca:76:85 seqno 38852 chan (255) age 15 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc0 nexthop 10.110.1.2 (installed) 10.110.1.3/32 from ::/0 metric 65535 (65535) refmetric 0 id
1c:be:71:b3:43:ca:76:85 seqno 38852 age 9 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc3 nexthop 10.110.1.3 (feasible) 172.17.0.0/16 from ::/0 metric 65535 (65535) refmetric 128 id
fc:e4:71:fb:2a:3c:63:11 seqno 39059 age 15 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc0 nexthop 10.110.1.2 (installed) 172.17.0.0/16 from ::/0 metric 65535 (65535) refmetric 128 id
1c:be:71:b3:43:ca:76:85 seqno 38852 age 9 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc3 nexthop 10.110.1.3 (feasible) 172.17.0.1/32 from ::/0 metric 65535 (65535) refmetric 0 id
fc:e4:71:fb:2a:3c:63:11 seqno 39059 age 15 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc0 nexthop 10.110.1.2 (feasible) 172.17.0.1/32 from ::/0 metric 65535 (65535) refmetric 0 id
1c:be:71:b3:43:ca:76:85 seqno 38852 age 9 via wlp0s20u1 neigh
fe80::76da:38ff:fe26:cdc3 nexthop 10.110.1.3 (feasible)

What's going on here, and how can I fix it? The rxcost looks fine, it's just the
txcost that's completely wrong.
Thanks! Christian Stewart
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