--- /dev/null
+# Test Description
+
+Test `http.request_header` and `http.response_header` keyword
+
+## PCAP
+
+From https://redmine.openinfosecfoundation.org/issues/6736
+
+
+## Related issues
+
+https://redmine.openinfosecfoundation.org/issues/6736
--- /dev/null
+alert http any any -> any any (msg:"request_header"; flow:established,to_server; http.request_header; content:"Connection|3a 20|"; classtype:bad-unknown; sid:1; rev:1;)
+alert http any any -> any any (msg:"response_header"; flow:established,to_client; http.response_header; content:"Connection|3a 20|"; classtype:bad-unknown; sid:2; rev:1;)
+alert http any any -> any any (msg:"request_header"; flow:established,to_server; http.request_header; content:"User-Agent|3a 20|"; classtype:bad-unknown; sid:3; rev:1;)
+alert http any any -> any any (msg:"response_header"; flow:established,to_client; http.response_header; content:"Date|3a 20|"; classtype:bad-unknown; sid:4; rev:1;)