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Scan for LLTD-enabled hosts on your network
sietec/lltdscan
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= DESCRIPTION = lltdscan - Scan for LLTD-enabled hosts on your network. LLTD is a Link Layer Topology Discovery Protocol. protocol specs are available from Microsoft at http://www.microsoft.com/whdc/connect/Rally/LLTD-spec.mspx Run "lltdscan -i em0" on your FreeBSD or Linux-based pc - and you'll see all your neighbours that have the MS Windows installed and have not unchecked the "Link-Layer Topology Discovery Responder" in their Network Connection settings. Works starting from XP(sp3 ?), works on Vista, needs testing on W2k7. IMPORTANT: LLTD is a level 2 protocol - i.e. it not runs over ip or tcp or udp or anything. So, you can get other PC's info even if they live in different IP subnets, or even if they don't have any valid IP address but have 169.254.x.y self-assigned IP. = INSTALLATION = FreeBSD: gmake && gmake install Linux: make && cp lltdscan /usr/sbin/ && cp lltdscan.8 /usr/share/man/man8/ = EXAMPLES = #sudo ./lltdscan -t1300 interface eth0 101 bytes from 00:01:33:ed:54:a1 (192.168.123.12 ): time=929 ms name="XZ" found 1 hosts in 1.303 seconds #sudo ./lltdscan -t1300 -v interface eth0 101 bytes from 00:01:33:ed:54:a1 (192.168.123.12 ): time=929 ms name="XZ" Host ID: 00 01 ee ff 22 a1 Charact.: 20 00 00 00 (full-duplex) Media: 00 00 00 06 (Ethernet) Perf.cntr: 00 00 00 00 00 36 9e 99 Link speed: 100 Mbit/s Name: 31 00 43 00 QoS: 60 00 00 00 (802.1q-support, 802.1p-support) found 1 hosts in 1.302 seconds = LICENSE = Public Domain. = CONTACTS = zed [dot] 0xff [at] gmail.com http://github.com/zed-0xff/lltdscan http://zed.0xff.me/
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