tonusoo

--- bgp_simple.pl~      2024-11-27 12:26:17.057483859 +0200
+++ bgp_simple.pl       2024-11-27 14:46:48.435675124 +0200
@@ -16,6 +16,8 @@
 use Net::BGP;
 use Net::BGP::Process;

+STDOUT->autoflush(1);
+
 my $version = "v0.12";
 my $version_date = "22-Jan-2011";

tonusoo

#!/usr/bin/python3 -u

"""
-> eth0: 192.168.17.36 -> 172.16.20.3 | protocol UDP | port 6000 | DATA |

<- eth1: 10.0.0.2 -> 10.0.0.1 | protocol UDP | port 6000 | DATA |


apt install --no-install-recommends python3-pcapy python3-scapy
"""

tonusoo

log syslog all;
debug protocols all;

router id 213.184.52.1;
define rtix_rs_asn = 207800;


# BGP ipv4/ipv6 channel option "secondary" requires
# routing table to be sorted.
ipv4 table master4 sorted;

tonusoo

interfaces {
    lo0 {
        unit 0 {
            family inet {
                filter {
                    input-list [ discard-ip-options discard-frags accept-single-hop-bfd-v4 accept-multi-hop-bfd-v4 accept-bgp-v4 accept-ospf2 accept-vrrpv3-v4 accept-established-v4 accept-common-services-v4 discard-all-v4 ];
                }
            }
            family inet6 {
                filter {

tonusoo

version 1.0;

ns junos = "http://xml.juniper.net/junos/*/junos";
ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";
ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0";
ns dyn = "http://exslt.org/dynamic";
ns snmp extension = "http://exslt.org/functions";


template find-alarm($alarm_severity) {

tonusoo

#!/usr/bin/python3 -u

"""
Title               : send-dst-unreach
Last modified date  : 14.02.2024
Author              : Martin Tonusoo
Description         : Reads packets from Netfilter queue, sends the
                      ICMPv6 type "Destination Unreachable" code
                      "Source address failed ingress/egress policy"
                      as a response to those packets and finally

tonusoo

#!/usr/bin/env python3

"""

https://github.com/systemd/systemd/issues/27219


Usage:

# for i in {1..10}; do scapy-dhcp-client.py; done

tonusoo

# Setup below allows one guest to receive untagged frames while the other guest receives tagged traffic.

# Mark the frames depending on the ingress interface. eth0 is facing the physical network.
ebtables -A FORWARD -i eth0.173 -j mark --mark-set 173 --mark-target CONTINUE
ebtables -A FORWARD -i eth0.174 -j mark --mark-set 174 --mark-target CONTINUE

# vnet0 is a TAP device facing the virtual machine.
# Switch to classful prio qdisc for egress traffic.
tc qdisc add dev vnet0 handle fffe: root prio
# Attach filters to qdisc handle which will perform the VLAN push.

tonusoo

#include <stdio.h>
#include <unistd.h>
#include <netinet/igmp.h>
#include <linux/mroute.h>
#include <arpa/inet.h>

// socket configuration is based on https://github.com/pali/igmpproxy

int main() {

tonusoo

#!/usr/bin/env python3

import multiprocessing
from datetime import datetime
from scapy.all import sniff, send, IP
from scapy.contrib.igmp import IGMP


def sniffer():
    sniff(iface="ens3", filter="dst 239.3.5.3 and igmp", store=0, count=1)