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Re: Testing on hosts with firewalls

On 12/30/2016 12:35 AM, Mike Frysinger wrote:

	/* Equiv of `ip link set up lo`.  Kernel will assign 127.0.0.1 for us. */
	strcpy(ifr.ifr_name, "lo");
	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0)
		err(1, "ioctl(SIOCGIFFLAGS) failed");

	/* The kernel preserves ifr.ifr_name for use. */
	ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
	if (ioctl(sock, SIOCSIFFLAGS, &ifr) < 0)
		err(1, "ioctl(SIOCSIFFLAGS) failed");


Thanks, this works.
Initial testing shows that my DNS tests are now much more reliable. In fact, I could no longer reproduce those dropped packets. This looks the way to go. 

Florian
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