📄 lo.4
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.\" SCCSID: @(#)lo.4 8.1 9/11/90.TH lo 4.SH Namelo \- loop network interface.SH Syntax.B pseudo-device loop.SH Description.NXR "loop network interface".NXR "lo keyword"The.PN loopinterface is a software loopback mechanism that can beused for performance analysis, software testing, and/or localcommunication. By default, the loopback interface isaccessible at address 127.0.0.1 (nonstandard); this addressmay be changed with the SIOCSIFADDR ioctl..SH Diagnostics.B "lo%d: can't handle af%d".brThe interface was handeda message with addresses formatted in an unsuitable addressfamily; the packet was dropped..SH See Alsointro(4n), inet(4f)
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