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Sai_Mallampeta_'s avatar
Sai_Mallampeta_
Icon for Nimbostratus rankNimbostratus
Dec 14, 2018

Windows Print server 2012R doesn't work after changing G/W to F-5

Currently we have windows print server 2012R behind netscalar and when we try to migrate the server to F-5 we are facing issues. When the G/W IP of the server is changed to the F-5 default gateway, print services aren't working nor server team can access the node. We have fast-L4 configured on the VIP with auto-map enabled on it and server has loopback configured with the VIP We did clone one of the production nodes for test purpose, created a new node with default gateway as F-5 and it works fine but when we try to move the production node to F-5 we are having issues. Can anyone please help me, I am not able to resolve this print server issue

 

application delivery
BIG-IP
LTM

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  • pushkar_misra_2's avatar
    pushkar_misra_2
    Icon for Altocumulus rankAltocumulus
    Dec 15, 2018

    Do you have forwarding VS configured for the server subnet. For F5 to actually work as gateway a forwarding server would be needed for L2 traffic forwarding to allow a general traffic to reach the server.

     

    It would be helpful if you could post config of F5 self IPs, VS and route map on server.

     

  • Sai_Mallampeta_'s avatar
    Sai_Mallampeta_
    Icon for Nimbostratus rankNimbostratus
    Dec 19, 2018

    Yes, i do have VS (IP forwarding concept)configured for the server subnet. I do have other VS that are working fine but I am having issues with the MS print servers. We did clone the print servers created another node 3&4, it works fine but not the production one 1&2. below is the configuration of the Printer VIP ltm virtual Printer { description Printer destination 10.33.17.124:any ip-protocol tcp mask 255.255.255.255 persist { source_addr { default yes } } pool Printer profiles { Printer-Fast-L4 { } http { } } source 0.0.0.0/0 source-address-translation { type automap } translate-address enabled translate-port disabled vs-index 29

    This my Forwarding IP configuration on the F-5, so that backend servers can communicate with other internal servers
ltm virtual Outbound-Forwarding {
description "Inter-Vlan routing between Internal and External vlan's"
destination 0.0.0.0:any
ip-forward
mask any
profiles {
    MyL4Profile { }
}
source 0.0.0.0/0
translate-address disabled
translate-port disabled
vlans {
    External
    Internal_vlan314
    Internal_vlan977
}
vlans-enabled
vs-index 48

    }

  • I_R_101_110's avatar
    I_R_101_110
    Icon for Cirrus rankCirrus
    Jan 02, 2019

    What is the reasoning for the server sharing a loopback IP with the VIP? Are you doing layer 2 n-path and bypassing the F5 for the return traffic? And if so, why? Make the traffic flow symmetrical if possible. Also, if you must do n-path, you must disable the translate-address flag in your VIP. If you're not doing n-path - that loopback doesn't belong.

     

    Could you also clarify whether you're having issue with the printer vip that you posted or the VIP that should be handling the default gateway traffic?