Ping Across VLAN

Posted on 2009-02-19
Last Modified: 2012-05-06
I have a network set up that makes use of multiple VLAN.  I have a Legacy VLAN that makes use of hard coded IP addresses(ie. 89.89.150.x).  I then have another VLAN that makes use of DHCP.  I believe we have the routing statements correct for the manages switches because I can ping across the VLAN between machines.  IE. I can ping from a DHCP machine to a LEGACY machine and LEGACY to DHCP.  My problem is that I have some printers that are on the LEGACY VLAN.  I cannot ping or access a LEGACY printer from a DHCP machine.  Any suggestions on this matter?????
Question by:gvector1
    LVL 19

    Accepted Solution

    Does the printer respond to ping requests on the legacy network directly?  If no, then this is likely to be a setting on the printer itself (not to respond to ICMP Echo requests).  If yes, then I suspect this will likely be caused by either a lack of gateway IP address (likely) or subnet mask (unlikely).

    For the case of a gateway IP address, the printer would have no knowledge of to where the response should be sent.  For the outside case of a subnet mask with two similarly number networks, if the subnet mask is too loose ( for example on a class C network), the printer could assume the remote location is actually local to itself and therefore not request the gateway to re-route the return packet.

    Author Closing Comment

    It appears that the gateway of the printer was set wrong.  Once I set the printer gateway to out actual network's gateway, I was able to ping and access the printer.  Thanks for the support

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