ARP ok, but IP address not available

[Steven]

Hi,

I installed mettalb in my k8s cluster.

The services got loadbalancer ip address from metallb ip range. 

The arp list content the LB IP and mac-address. but the IP address not pinging, not available.

testgitlab-nginx-ingress-controller           LoadBalancer   10.101.250.237   10.248.89.110   80:30837/TCP,443:30150/TCP,22:32472/TCP   19m

arp |grep 110

10.248.89.110            ether   00:21:f6:8d:bf:6c   C                     eth0

 arping 10.248.89.110 -I eth0 -b
ARPING 10.248.89.110 from 10.248.89.81 eth0
Unicast reply from 10.248.89.110 [00:21:F6:8D:BF:6C]  0.767ms
Unicast reply from 10.248.89.110 [00:21:F6:8D:BF:6C]  0.949ms

ping 10.248.89.110
PING 10.248.89.110 (10.248.89.110) 56(84) bytes of data.
From ... icmp_seq=2 Redirect Host(New nexthop: 10.248.89.110)

--- 10.248.89.110 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 2074ms

kubectl describe configmap -n kube-system kube-proxy | grep ARP
  strictARP: false

I tried set strictARP: true parameter, and jube proxy restart, but no change was made.

and a lot of error messages as well

 kubectl logs speaker-kqgjm -n metallb-system 

{"caller":"speakerlist.go:257","error":"1 error occurred:\n\t* Failed to resolve : lookup : no such host\n\n","expected":1,"joined":0,"msg":"partial join","op":"memberDiscovery","ts":"2021-01-21T17:27:08.000765019Z"}
{"caller":"memberlist.go:236","component":"Memberlist","msg":"[WARN] memberlist: Failed to resolve : lookup : no such host","ts":"2021-01-21T17:28:08.000660645Z"}
{"caller":"speakerlist.go:257","error":"1 error occurred:\n\t* Failed to resolve : lookup : no such host\n\n","expected":1,"joined":0,"msg":"partial join","op":"memberDiscovery","ts":"2021-01-21T17:28:08.000723348Z"}

Idea?

Best Regards

Steven