Hello hello,
to access to the vlan voice, you must add the module 8021q on your linux
box, after use the tool "vconfig" to add a virtual interface tagged with
the ID 124
# modprobe 8021q
# vconfig add eth0 124
next request an IP with DHCP and specify your interface eth0.124
# pump eth0.124
on the windows box some card "intel PRO/100 VE and broadcom" can be
configured for vlan access:
http://www.lanarchitect.net/Articles/VLANTrunking/Implementation/
Now you have an interface in the vlan 124 "eth0.124" and you can use
some tools for exemple you can performed ARP MITM with ettercap
# ettercap - eth0.124
Health & Happiness :)
Sn0rkY
Frank Bussink wrote:
Hello,
I'm trying to do a pen-test on a Cisco IPT system.
Cisco IP telephone are connected on the same network cable as the PC, but
are working on another vlan.
The access switches have a configuration like :
switchport mode access
switchport access vlan 123
switchport voice vlan 124
I think the negotation with the access switch is done by CDP but I'm not
sure.
Does anyone have a tool that emulates the PC as a voice device in order
to receive a dhcp lease on vlan 124, so I can start to inject ARP MITM
with Cain for example ?
Kind regards
Frank
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