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Fix using non default interface #7

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merged 1 commit into from
Mar 31, 2019
Merged

Fix using non default interface #7

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10 changes: 5 additions & 5 deletions mitm6/mitm6.py
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Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,7 @@ def send_dhcp_advertise(p, basep, target):
config.ipv6noaddrc += 1
opt = DHCP6OptIAAddress(preflft=300, validlft=300, addr=addr)
resp /= DHCP6OptIA_NA(ianaopts=[opt], T1=200, T2=250, iaid=p[DHCP6OptIA_NA].iaid)
sendp(resp, verbose=False)
sendp(resp, iface=config.default_if, verbose=False)

def send_dhcp_reply(p, basep):
resp = Ether(dst=basep.src)/IPv6(src=config.selfaddr, dst=basep[IPv6].src)/UDP(sport=547, dport=546) #base packet
Expand All @@ -150,7 +150,7 @@ def send_dhcp_reply(p, basep):
try:
opt = p[DHCP6OptIAAddress]
resp /= DHCP6OptIA_NA(ianaopts=[opt], T1=200, T2=250, iaid=p[DHCP6OptIA_NA].iaid)
sendp(resp, verbose=False)
sendp(resp, iface=config.default_if, verbose=False)
except IndexError:
# Some hosts don't send back this layer for some reason, ignore those
if config.debug or config.verbose:
Expand Down Expand Up @@ -191,7 +191,7 @@ def send_dns_reply(p):
if should_spoof_dns(reqname):
resp /= DNS(id=dns.id, qr=1, qd=dns.qd, an=DNSRR(rrname=dns.qd.qname, ttl=100, rdata=rdata, type=dns.qd.qtype))
try:
sendp(resp, verbose=False)
sendp(resp, iface=config.default_if, verbose=False)
except socket.error as e:
print('Error sending spoofed DNS')
print(e)
Expand Down Expand Up @@ -289,7 +289,7 @@ def setupFakeDns():
def send_ra():
# Send a Router Advertisement with the "managed" and "other" flag set, which should cause clients to use DHCPv6 and ask us for addresses
p = Ether(dst='33:33:00:00:00:01')/IPv6(dst='ff02::1')/ICMPv6ND_RA(M=1, O=1)
sendp(p, verbose=False)
sendp(p, iface=config.default_if, verbose=False)

# Whether packet capturing should stop
def should_stop(_):
Expand Down Expand Up @@ -349,7 +349,7 @@ def main():
print('Hostname blacklist: %s' % ', '.join(config.host_blacklist))

#Main packet capture thread
d = threads.deferToThread(sniff, filter="ip6 proto \\udp or arp or udp port 53", prn=lambda x: reactor.callFromThread(parsepacket, x), stop_filter=should_stop)
d = threads.deferToThread(sniff, iface=config.default_if, filter="ip6 proto \\udp or arp or udp port 53", prn=lambda x: reactor.callFromThread(parsepacket, x), stop_filter=should_stop)
d.addErrback(print_err)

#RA loop
Expand Down