Tom chasing Harry and Ron Weasly Meme : Harry : people using the first address of the range as gateway, Ron : people using the last address of the range as gateway, Tom : people using one random address of the range as gateway
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[–] 3 points 14 hours ago (5 children)

The highest address of a subnet is the broadcast address. You can't assign it to a host.

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  • [–] 7 points 14 hours ago (4 children)

    But 10.233.212.225 is middle of the range for the /23.

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  • [–] 3 points 14 hours ago (3 children)

    I had students like you when teaching Cisco classes...

    Their peers heads would always explode, lol.

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  • [–] 3 points 13 hours ago (2 children)

    If you use a /23 you can use the middle .0 too.

    My favourite dumb networking trick though is that Linux lets you use an IPv6 address as an IPv4 gateway.

    ip -4 route add default via inet6 fe80::1 dev eth0
    

    That works so long as the gateway is running dual stack.

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  • [–] 2 points 6 hours ago (1 child)

    Makes sense, the gateway is never a target of the ip packet, so it's really only used to find the MAC address of the gateway.

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