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# Unicast
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Any network packet sent to one destination is *unicast*. Unicast Ethernet, and other 802.x, addresses have their high-order bit set to zero (that is, their first octet is even). All IPv4 addresses are unicast by default, except the ones designated as [Multicast](/Multicast) (224/4) or [Broadcast](/Broadcast) (255.255.255.255/32).
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## See Also
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[Broadcast](/Broadcast), [Multicast](/Multicast)
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[More info on Unicast](http://blog.eukhost.com/2006/10/22/unicast/)
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---
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Imported from https://wiki.wireshark.org/Unicast on 2020-08-11 23:27:04 UTC |