udp masq entry and dns abuse

[greg gede <mymilis2000 () yahoo com>]

Lately i'm having problem with udp masq entry in my
internet leaf-router with a lot of messages like this:
IP_MASQ:ip_masq_new(proto=UDP): could not get free
masq entry (free=36864)

here's my network looks like :
        -------------          -----------------------

        |leaf-router|          |RH9 squid & dnscachex|
to -----|eth0   eth1|---|HUB|--|eth0             eth1|
internet|           |          |                     |
        -------------          -----------------------
                                                    |
                                                    |
                                             |switch|
                                                | | | 
                                     subnet A - | | | 
                                     subnet B --- | |
                                     subnet C ------| 


everytime i stop dnscachex, the messages also stop. am
i having dns abuse from my internal network? or is it
because there are too many clients in my internal
network? how do i deal with it?

any suggestion will be very appreciated.

regards,
gregor

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