Unable to create ip filter for rule ruleType value – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch fails to create an IP filter due to an incorrect or invalid rule type or value. This could be due to a syntax error, incorrect IP address format, or a non-existent rule type. To resolve this issue, you can: 1) Check and correct the syntax of the rule; 2) Verify the IP address format; 3) Ensure the rule type exists and is valid; 4) If the error persists, consider resetting the IP filter settings to default and reconfiguring them.

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This guide will help you check for common problems that cause the log ” unable to create ip filter for rule [” + ruleType + ” ” + value + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, filter.

Log Context

Log “unable to create ip filter for rule [” + ruleType + ” ” + value + “]” class name is SecurityIpFilterRule.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 try {
 Tuple inetAddressIntegerTuple = parseSubnetMask(value);
 return new IpSubnetFilterRule(inetAddressIntegerTuple.v1(); inetAddressIntegerTuple.v2(); filterRuleType);
 } catch (UnknownHostException e) {
 String ruleType = (isAllowRule ? "allow " : "deny ");
 throw new ElasticsearchException("unable to create ip filter for rule [" + ruleType + " " + value + "]"; e);
 }
 } else {
 // pattern rule - not netmask
 StringJoiner rules = new StringJoiner(";");
 for (String pattern : values) {

 

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