Network config for a /29



  • Forgive me if this is a dumb question, however I have a machine co-lo'd that runs a few VM's. (Esxi)

    Unfortunately due to a problem it's having to be moved, which requires a change of network configuration.
    The new configuration is based on a /29 which is routed via a specific Ip.

    At the moment everything goes through a pfSense vm running as a transparent filtering bridge, although that will probably need to change (I know ideally it should be a separate machine but I cannot afford to co-lo another machine just to be used as a firewall :( )



  • What is your problem?
    A diagram would help.



  • @GruensFroeschli:

    What is your problem?
    A diagram would help.

    My problem is the machine is physically being moved, where where as before i just had 16ip's and I simply added them and it worked.

    The new setup is 3 "Primary" ips with a /29 routed via one of the primary ip's.

    Presumably i need to activate some kind of routing function? (or place a router infront of the box, which hopefully I don't need to do as that would cost me a lot more)



  • Set the 'primary' IP (I assume these are not part of the /29, and this needs to be the address the upstream router is 'next hopping' for your /29) as your WAN interface address. Set the /29 up as your LAN side, and assign addresses to your VMs as required (use /29 or 255.255.255.248). Shouldn't need to do much else.

    Keep in mind though that a /29 is only 6 usable addresses, and you probably want the firewall to have one of those.



  • @ktims:

    Set the 'primary' IP (I assume these are not part of the /29, and this needs to be the address the upstream router is 'next hopping' for your /29) as your WAN interface address. Set the /29 up as your LAN side, and assign addresses to your VMs as required (use /29 or 255.255.255.248). Shouldn't need to do much else.

    Keep in mind though that a /29 is only 6 usable addresses, and you probably want the firewall to have one of those.

    Sorry its actually a /28 I typod it  :-[


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