![]() ![]() ![]() Tcpdump: verbose output suppressed, use -v. Rtt min/avg/max/mdev = 0.199/0.199/0.199/0.000 msĪnd the following is the corresponding output from tcpdump running on same host at the same time: $ sudo tcpdump -eni any icmp $ sudo sysctl -w _echo_ignore_broadcasts=0 ( src is the preferred source address, which will be used as the source address for non-replying traffics with the corresponding destination when you are not specifying one, e.g. Local 127.0.0.1 dev lo proto kernel scope host src 127.0.0.1 It appears to cause a difference for certain broadcast destination though, like 255.255.255.255, probably because it is used to determine the broadcasting link/domain in such case.) $ ip r show table local type local In the unicast case the specified interface of a local route does not seem to matter. Those routes determine what addresses you can bind/use as source address and what traffics will be "trapped" in the host itself (instead of actually being sent / forwarded out to another host). Response.All of the combiantions could be used for a loopback test, at least in Linux, since in what cases will loopback occur pretty much entirely depends on the type local routes in the route table local (ID 255). Loop through json file and reset values Īpr-06-2023, 11:15 AM Last Post: AlphaInc ![]() #Command2The problem is, all i get is this output and I don't know how to fix it: ping: 192.168.180.106]: Name or service not known Host_response = os.system("ping -c 1 " + str(hosts)) Therefore I have created a list of client ip's and a loop to check every ip if its online or not and then, if all ip's are down, execute a command (in this example it is the command #Command1) and if not, it should execute another command (in this exampe #Command2). I want to use a python script to check if certain ips are still online and if not, i want the system to shut down. ![]()
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