Control: reassign 1094138 nmap Hi there!
I ran the udptunnel test in a s390x testbed without udptunnel, I only used ncat, and sometimes, it fails. I write some scripts [1] to help with the ncat tests. I ran for 100 times the script "test-ncat-udp-series.sh", resulting in 10k tests. [1] https://people.debian.org/~talau/tmp/test-ncat-udp 10k tests (using "test-ncat-udp-series.sh") results in a porterbox s390x: - Fail: Avg: 3.01%, StdDev: 2.15636 10k tests (using "test-ncat-udp-series.sh") results in a porterbox amd64: - Fail: Avg: 0.12%, StdDev: 0.381576 After the tests, I decided to make tests changing ncat client to socat client, scripts (test-ncat-udp_socat-client-series.sh, test-ncat-udp_socat-client.sh). Below the results: 10k tests (using "test-ncat-udp_socat-client-series.sh") results in a porterbox s390x: - Fail: Avg: 0.0%, StdDev: 0 10k tests (using "test-ncat-udp_socat-client-series.sh") results in a porterbox amd64: - Fail: Avg: 0.0%, StdDev: 0 Analyzing the results, it can be seen that communication using ncat-client and ncat-server presents failures. By changing ncat-client to socat, communications no longer present failures. This indicates to me that ncat (in client mode) has some bug. Best Regards, mt
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