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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>We are in the process of rolling out a Cisco VoIP network and there
have been quite a few concerns expressed in regards to security.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>We’re using VACL’s on our code 6509 switches to stop IP data
VLAN ranges from entering the VoIP VLAN but it would appear that the program
named “VoIP Hopper” would allow us to bypass and VACL. I have yet
to use VoIP Hopper but will attempt it some time soon. Has anyone used this
product to jump through a VACL?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Our next concern is QoS and what are some good open source tools to
generate traffic to trigger the QoS queuing mechanisms. All of our gear is
gigabit Ethernet so I’m thinking that I won’t be able to generate
the level of traffic I need without multiple machines. Promising tools so far
look like “BitTwist” and “D-ITG”. Does anyone have any
recommendations for these types of tools?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>-R-<o:p></o:p></span></font></p>
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