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Strange high bandwidth SIP traffic

Hi,
From about 2 weeks ago, Astaro receive strange high load SIP traffic sourced from 42.234.141.122.adsl-pool.jlccptt.net.cn as shown in the attached screen shot, and when I block this traffic using the flow control window it cause nothing, so how can I block this kind of traffic or how can I track this traffic, please note that I searched all my log files I did not find any log with the source "42.234.141.122.adsl-pool.jlccptt.net.cn". any information about how can I track this traffic and stop it.
Thanks,
Mostafa Aly

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0 BarryG over 12 years ago

Hi,

1. So are you saying VOIP Security is OFF?

2. Do you have any DNATs and/or PacketFilter rules for incoming SIP traffic?

Barry
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0 BarryG over 12 years ago

Hi,

1. So are you saying VOIP Security is OFF?

2. Do you have any DNATs and/or PacketFilter rules for incoming SIP traffic?

Barry
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0 most_ahdy over 12 years ago in reply to BarryG

Hi Barry,
1. Yes I have the VOIP security turned off.
2. Yes I have DNAT rules to forward any SIP or RTP traffic coming from outside to the internal SIP server.
Thanks,
Mostafa Aly
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