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dtd41's avatar
dtd41
Aspirant
Apr 13, 2019
Solved

DHCP Address reservations ignored?

This is an unmanaged switch connected to a GS105 unmanaged switch. I have two questions: (1) On the link between the GS108 and the host The left light is green, the right not light; (2) Anything to b...
  • schumaku's avatar
    schumaku
    Apr 13, 2019

    This is a short part borrowed fro the GS105(v5) Installation Guide, very similar in the GS108(v4) Installation Guide - only the left LED indicates a 100 Mb/s (Fast Ethernet) link only. On a complete and healthy cable, a Gigabit Ethernet (1000 Mb/s) must be established.

     



    Hard to say what is killing the DHCP process here ...

dtd41's avatar
dtd41
Aspirant
Apr 13, 2019

Thanks. I did not expect a RTFM response on an unmanaged switch (my bad) thank for the kind and forgiving reply. Given that info the DHCP issue is probably due to network topology. Thank you again

schumaku's avatar
schumaku
Guru - Experienced User
Apr 13, 2019

Had not come to a conclusion ref. the DHCP issue, so left it open.

 

There is no problem with a topology like

 

Router<-GbE->G105<-FastEthernet(?)->G108<->Computer

 

Should work like a charm, permitting the cable isn't to bad.