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Wired Networks Thread, Subnet help.... in Technical; You know one of those things where you just look and look and cannot seem to find the answer.... well ...
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    Subnet help....

    You know one of those things where you just look and look and cannot seem to find the answer.... well here I am....

    We have two Vlans, Admin network (Vlan 170) and Wireless Guests (Vlan 120) - Actually there are loads more, curriculum, AuthorityEdge, CCTV, e-Registration, Cashless catering etc etc but we will stick to these for now.

    My HP core is set as follows... (I ommited the tagged/untagged details)

    ip default-gateway 10.100.15.254
    ip route 0.0.0.0 0.0.0.0 10.100.15.254
    router pim
    vlan 170
    name "Management"
    ip address 172.24.0.1 255.255.254.0
    ip helper-address 10.100.0.10
    ip igmp
    vlan 120
    name "WrlesGuests"
    no ip address 10.100.14.1 255.255.252.0
    ip helper-address 10.100.0.10

    I then have a smoothwall on 10.100.15.254/255.255.255.0 sitting in both vlans

    My global catalog server/dns/dhcp is 10.100.0.10

    My Question how come I can ping the smoothwall on vlan 170 but not on 120?
    Last edited by Dageezah; 3rd December 2013 at 02:26 PM.

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    themightymrp's Avatar
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    Is it because your Vlan 120 range is 10.100.14.0 with a /22 subnet and this will overlap with the 10.100.15.0/24 subnet??

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