Source ip not getting reflected

[ashisharyan (Ashish)]

We are presently using Elk stack for receiving syslog through file beat.
We are receiving logs in logstash and also in Elasticsearch but we are not
getting source ip in our dashboard

Below is the config file of logstash

input {
    beats {
        port => "5044"
    }
}
filter {
    grok {
        match => { "message" => "%{SYSLOGLINE}"}
    }
    geoip {
        source => "clientip"
    }
}
output {
    elasticsearch {
        hosts => [ "192.168.0.105:9200" ]
    }
}