Wireline Broadband & VoIP Telephony Suite

Network StackPre-configured

Overview & Purpose

While wireless cellular security receives significant focus, the underlying carrier transport network relies on fixed wireline access concentrators, copper DSLAMs, optical OLTs, and IP PBX trunks. TelcoChisel incorporates a dedicated wireline and fixed broadband assessment suite, enabling red teams to audit PPPoE authentication handshakes, inspect TR-069 CWMP management protocols, and perform SIP/VoIP signaling stress testing.

Verification Command

Run the following to confirm this configuration is active on your system:

Wireline Broadband & VoIP Telephony Suite — Verification
pppoe -h && sipp -h

Configuration Details & Steps

TelcoChisel applies these settings automatically at ISO build time. The following steps document each configuration item:

  1. 1
    Audit captured PPPoE MS-CHAPv2 authentication handshakes against credential wordlists: asleap -r /tmp/pppoe_auth.pcap -W /usr/share/wordlists/telecom-passwords.txt
  2. 2
    Enumerate SIP user agents and PBX extensions on carrier VoIP gateways: svmap 192.168.1.0/24 -p 5060
  3. 3
    Stress test SIP proxy handling under high-volume UAC call floods: sipp -sn uac -r 50 -rp 1000 -m 500 192.168.1.1:5060
  4. 4
    Inject 802.1Q tagged VLAN carrier frames to verify trunk isolation: scapy --eval "sendp(Ether()/Dot1Q(vlan=100)/IP(dst='10.0.0.1')/ICMP(), iface='eth0')"

Troubleshooting

Common Issues
If PPPoE discovery fails, verify that raw Ethernet frames can traverse your physical interface: `sudo tcpdump -i eth0 pppoes or pppoed`. In virtualized labs, ensure that the virtual switch enables promiscuous mode and forged transmits.

Frequently Asked Questions

Why is PPPoE MS-CHAPv2 auditing important for telecom operators?

Many ISP broadband access networks authenticate consumer and business routers via PPPoE MS-CHAPv2. If weak passwords are used, passive wireline eavesdropping can capture the challenge-response and recover cleartext credentials.

What is TR-069 and how is it audited?

TR-069 (CWMP) is the broadband standard used by carriers to configure and manage customer premises equipment (CPE) remotely. Security audits inspect whether the ACS endpoints enforce strict TLS mutual authentication.

Can SIPp test carrier IMS (IP Multimedia Subsystem) cores?

Yes. SIPp is the industry-standard SIP benchmarking tool capable of generating high-rate SIP INVITE, REGISTER, and OPTIONS traffic with custom authentication digests.

SIGNALING CORE LAB

Learn Wireline Broadband & VoIP Telephony Suite in TelcoSec Academy

Master real-world implementation, protocol fuzzing, and telecom security engineering in guided browser sandbox labs.

Interactive Cloud Labs No Hardware Required CTSP Certification
Start Telecom Labapp.telcosec.net · Instant access
Back to OS Customizations