OpenShift Logging Cluster Fails Behind F5 Big IP with X-Forwarded-For Enabled

Issue

When application Kibana is behind a F5 big ip with parameter 'X-Forwarded-For = enabled' the following problem:

Kibana: Unknown error while connecting to Elasticsearch


Error: Unknown error while connecting to Elasticsearch
Error: UnknownHostException[No trusted proxies]
    at respond (https://kibana.example.com/index.js?_b=7668:86367:15)
    at checkRespForFailure (https://kibana.example.com/index.js?_b=7668:86335:7)
    at https://kibana.example.com/index.js?_b=7668:84973:7
    at wrappedErrback (https://kibana.example.com/index.js?_b=7668:20902:78)
    at wrappedErrback (https://kibana.example.com/index.js?_b=7668:20902:78)
    at wrappedErrback (https://kibana.example.com/index.js?_b=7668:20902:78)
    at https://kibana.example.com/index.js?_b=7668:21035:76
    at Scope.$eval (https://kibana.example.com/index.js?_b=7668:22022:28)
    at Scope.$digest (https://kibana.example.com/index.js?_b=7668:21834:31)
    at Scope.$apply (https://kibana.example.com/index.js?_b=7668:22126:24)