Add fakeping

networking.md

@@ -74,3 +74,59 @@ net.ipv4.icmp_ratelimit = 100000
 net.ipv4.icmp_msgs_burst=1000
 ```
 
+## Making "fake ping"
+docker-compose.yaml
+```
+version: "2.4"
+
+services:
+  fakeping:
+    container_name: fakeping
+    build: ./fakeping
+    networks:
+      mgmnt-net:
+        ipv4_address: 10.0.252.19
+    cap_add:
+      - NET_ADMIN
+    restart: always
+
+networks:
+  mgmnt-net:
+    name: mgmnt-net
+    driver: macvlan
+    driver_opts:
+      parent: eno1
+    ipam:
+      config:
+        - subnet: "10.0.252.0/24"
+          gateway: "10.0.252.1"
+```
+
+Dockerfile in fakeping directory
+```
+FROM ubuntu/kinetic:latest
+
+RUN apt-get update && apt-get install -y iproute2 iputils-ping
+
+ADD entrypoint2.sh /tmp
+WORKDIR /root
+ENTRYPOINT ["/tmp/entrypoint2.sh"]
+```
+
+File entrypoint2.sh
+```
+#!/bin/sh
+tc qdisc del dev eth0 root
+tc qdisc add dev eth0 root handle 1:0 htb default 10
+tc class add dev eth0 parent 1:0 classid 1:10 htb rate 500Gbit ceil 500Mbit prio 0
+tc qdisc add dev eth0 parent 1:10 handle 10: pfifo limit 10000
+tc class add dev eth0 parent 1:0 classid 1:40 est 1sec 8sec htb rate 350Mbit ceil 350Mbit
+tc qdisc add dev eth0 parent 1:40 handle 41: netem delay 40ms 10ms limit 90000
+tc filter add dev eth0.11 protocol ip parent 1: prio 1 u32 match ip protocol 0x1 0xff flowid 1:40
+# while loop
+while true
+do
+    sleep 1
+done
+
+```