F5 BIGIP VE with Virtual Forwarding Server dropped some DNS requests...

Hi,

Just to give you a bit more info, find fastl4 profile, rate-shaping class and virtual server config below: And yes, "lose-close" and "loose-initialization" is enabled already in the profile.

ltm profile fastl4 /Common/pf-fastL4_router {
    app-service none
    defaults-from /Common/fastL4
    hardware-syn-cookie enabled
    idle-timeout 300
    ip-tos-to-client pass-through
    ip-tos-to-server pass-through
    keep-alive-interval disabled
    late-binding disabled
    link-qos-to-client pass-through
    link-qos-to-server pass-through
    loose-close enabled
    loose-initialization enabled
    mss-override 0
    pva-dynamic-client-packets 1
    pva-dynamic-server-packets 0
    pva-offload-dynamic enabled
    reassemble-fragments disabled
    receive-window-size 0
    reset-on-timeout disabled
    rtt-from-client disabled
    rtt-from-server disabled
    server-sack disabled
    server-timestamp disabled
    software-syn-cookie disabled
    syn-cookie-whitelist disabled
    tcp-close-timeout 5
    tcp-generate-isn disabled
    tcp-handshake-timeout 5
    tcp-strip-sack disabled
    tcp-timestamp-mode preserve
    tcp-wscale-mode preserve
}


net rate-shaping class /Common/rs_50Mbps-max {
    ceiling 50mbps
    drop-policy /Common/fred
    queue /Common/pfifo
    rate 50mbps
}


ltm virtual /Common/vs_forward-0.0.0.0_any {
    destination /Common/0.0.0.0:0
    ip-forward
    ip-intelligence-policy /Common/ip-intelligence
    mask any
    profiles {
        /Common/pf-fastL4_router { }
    }
    rate-class /Common/rs_50Mbps-max
    source 0.0.0.0/0
    source-address-translation {
        pool /Common/sp_default
        type snat
    }
    translate-address disabled
    translate-port disabled
    vlans {
        /Common/vl-internal
    }
    vlans-enabled
}