ICND1 question / switch

Discussion in 'General Cisco Certifications' started by newby AL, Oct 29, 2018.

  1. newby AL

    newby AL New Member

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    question: a switch has several ports . lets say it has 24 of them . and this switch has a specific ethernet connection going to it [ but, it is not one of the 24 ports earlier mentioned ] ... it is a connection to the switchs ethernet port and lets say it has the ip address of 10.22.100.254 as well as a subnet mask of 255.255.255.0 [ or /24 .. which represents 255.255.255.0 ] .
    Now, back to those individual 24 / unused ports on the switch . With those empty 24 ports, that means i could connect 24 devices to those ports and configure those ports for dhcp and have ip addresses assigned automatically to those ports that way - or - i could statically [ manually ] assign ip addresses of my own choice to those ports as long as the ip address i assign falls within 0 and 99 in the 3rd octet ? Is this correct ??

    10.22 [ network ] 100.254 [host]
    0
    thru
    99

    Alan
     
  2. Pseudonym

    Pseudonym Kilobyte Poster

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    A couple of things.. I'm not sure exactly what you mean by assign them an IP address. Layer 2 switches don't have IP addresses assigned to the ports. The IP address would be assigned to the device attached to the ports, not the ports themselves.

    Secondly, the IP range would be in the 4th octet for a /24 mask. Anything between 100.1 - 100.254 are valid addresses on that subnet.
     
  3. Sparky
    Highly Decorated Member Award 500 Likes Award

    Sparky Zettabyte Poster Moderator

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    As above – assume this is a layer 2 switch?

    If it is VLAN capable you can configure the switch with different VLANs but that would not mean you would have to configure subnets. Generally a Layer 3 device will route between the subnets on your switch and perhaps be the DHCP source as well if needed..
     
    Certifications: MSc MCSE MCSA:M MCSA:S MCITP:EA MCTS(x5) MS-900 AZ-900 Security+ Network+ A+
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