# ./ethr -s --ip 2001:db8:d401:21cd::6
Ethr: Comprehensive Network Performance Measurement Tool (Version: UNKNOWN)
Maintainer: Pankaj Garg (ipankajg @ LinkedIn | GitHub | Gmail | Twitter)
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Accepting IP version: ipv4, ipv6
Listening on port 8888 for TCP & UDP
Fatal error running TCP server: listen tcp: address 2001:db8:d401:21cd::6:8888: too many colons in address
# ./ethr -s --ip "[2001:db8:d401:21cd::6]"
Ethr: Comprehensive Network Performance Measurement Tool (Version: UNKNOWN)
Maintainer: Pankaj Garg (ipankajg @ LinkedIn | GitHub | Gmail | Twitter)
Error: Invalid IP address: <[2001:db8:d401:21cd::6]> specified.
Please use "ethr -h" for complete list of command line arguments.