miércoles, 12 de septiembre de 2018

Mikrotik, queue tree basado en L7

En entradas anteriores compartí distintas formas de regular el tráfico a traves de queue simple y queue tree.
Ahora, experimentando con un nuevo router, el ccr 1009 (creedence) encontré este script para la versión 6 de ROS basado en Layer 7.

Como se puede observar, definir las reglas de layer 7 es a primera vista algo sencillo, sin embargo hay que comprobar luego que estas funcionen de acuerdo a nuestras necesidades.
Por el momento yo dejé el script tal como lo programó el autor y estoy monitoreando el tráfico observando la actividad en cada una de las ramas del queue tree.
Solo faltaría agregar una rama más que le dé baja prioridad al resto del tráfico desconocido.

El tráfico considerado es el siguiente:


VoIP
VPN
Tráfico de juegos (red xbox, red PS Wii, WoW, LoL, etc.)
Transmisión de video (netflix, youtube, etc.)
Navegación Http (conexiones de menos de 5 MB)
Protocolos de administración (ssh, telnet, etc.)
Servicios de administración (DNS, ICMP, etc.)
Todo lo que sobra se considera basura y lucha por lo que queda.



Agregamos dos clases nuevas de queue:
 /queue type
add kind=pfifo name=streaming-video-in pfifo-limit=500
add kind=pcq name=games-in-pcq pcq-classifier=dst-address \
    pcq-dst-address6-mask=64 pcq-rate=100k pcq-src-address6-mask=64 \
    pcq-total-limit=750000KiB
 creamos los filtros regex según nuestras necesidades:
/ip firewall layer7-protocol
add name=speedtest-servers regexp="^.*(get|GET).+speedtest.*\$"
add name=torrent-wwws regexp="^.*(get|GET).+(torrent|thepiratebay|isohunt|ente\
    rtane|demonoid|btjunkie|mininova|flixflux|vertor|h33t|zoozle|bitnova|bitso\
    up|meganova|fulldls|btbot|fenopy|gpirate|commonbits).*\$"
add name=torrent-dns regexp="^.+(torrent|thepiratebay|isohunt|entertane|demono\
    id|btjunkie|mininova|flixflux|vertor|h33t|zoozle|bitnova|bitsoup|meganova|\
    fulldls|btbot|fenopy|gpirate|commonbits).*\$"
add name=netflix regexp="^.*(get|GET).+(netflix).*\$"
add name=mp4 regexp="^.*(get|GET).+\\.mp4.*\$"
add name=swf regexp="^.*(get|GET).+\\.swf.*\$"
add name=flv regexp="^.*(get|GET).+\\.flv.*\$"
add name=video regexp="^.*(get|GET).+(\\.flv|\\.mp4|netflix|\\.swf).*\$"
Creamos las listas de direcciones de la salida a Internet y la red interna:
 /ip firewall address-list
add address=192.168.0.0/16 list=internal-nets
add address=138.121.228.0/24 list=external-nets
add address=192.168.254.90 comment="cliente 1" list=customer-servers
 creamos las reglas del firewall para marcar el tráfico conocido:
/ip firewall mangle
add action=mark-packet chain=prerouting comment=\
    "internal-traffic packet mark" dst-address-list=internal-nets \
    new-packet-mark=internal-traffic passthrough=no src-address-list=\
    internal-nets
add action=mark-packet chain=prerouting comment=\
    "customer-servers-out packet mark" new-packet-mark=customer-servers-out \
    passthrough=no src-address-list=customer-servers
add action=mark-packet chain=prerouting comment=\
    "customer-servers-in packet mark" dst-address-list=customer-servers \
    new-packet-mark=customer-servers-in passthrough=no
add action=mark-packet chain=prerouting comment="admin-in packet mark DNS" \
    in-interface=!ISP new-packet-mark=admin-in passthrough=no protocol=udp \
    src-port=53
add action=mark-packet chain=prerouting comment="admin-in packet mark snmp" \
    dst-port=161 in-interface=ISP new-packet-mark=admin-in passthrough=no \
    protocol=udp
add action=mark-connection chain=prerouting comment=\
    "Remote Protocols admin connection mark" new-connection-mark=admin port=\
    20,21,22,23,3389,8291 protocol=tcp
add action=mark-connection chain=prerouting comment=\
    "icmp connection mark as admin" new-connection-mark=admin protocol=icmp \
    src-address-list=internal-nets
add action=mark-packet chain=prerouting comment="admin-in packet mark" \
    connection-mark=admin in-interface=ISP new-packet-mark=admin-in \
    passthrough=no
add action=mark-packet chain=prerouting comment="admin-out packet mark" \
    connection-mark=admin new-packet-mark=admin-out passthrough=no
add action=mark-connection chain=prerouting comment=\
    "streaming video connection mark" dst-port=80 layer7-protocol=video \
    new-connection-mark=streaming-video protocol=tcp src-address-list=\
    internal-nets
add action=mark-packet chain=prerouting comment=\
    "streaming video in packet mark" connection-mark=streaming-video \
    in-interface=ISP new-packet-mark=streaming-video-in passthrough=no
add action=mark-packet chain=prerouting comment=\
    "streaming video out packet mark" connection-mark=streaming-video \
    new-packet-mark=streaming-video-out passthrough=no
add action=mark-connection chain=prerouting comment=\
    "http traffic connection mark" dst-port=80,443 new-connection-mark=http \
    protocol=tcp src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "http traffic connection mark" connection-bytes=5000000-4294967295 \
    dst-port=80,443 new-connection-mark=http-download protocol=tcp \
    src-address-list=internal-nets
add action=mark-packet chain=prerouting comment="http in packet mark" \
    connection-mark=http in-interface=ISP new-packet-mark=http-in \
    passthrough=no
add action=mark-packet chain=prerouting comment="http out packet mark" \
    connection-mark=http new-packet-mark=http-out passthrough=no
add action=mark-connection chain=prerouting comment=\
    "wow connetion mark as gaming" dst-port=\
    1119,3724,6112-6114,4000,6881-6999 new-connection-mark=games protocol=tcp \
    src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "eve online connetion mark as gaming" dst-address=87.237.38.200 \
    new-connection-mark=games src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "starcraft 2 connetion mark as gaming" dst-port=1119 new-connection-mark=\
    games protocol=tcp src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "heros of newerth connetion mark as gaming" dst-port=11031,11235-11335 \
    new-connection-mark=games protocol=tcp src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "steam connetion mark as gaming" dst-port=27014-27050 \
    new-connection-mark=games protocol=tcp src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "xbox live connetion mark as gaming" dst-port=3074 new-connection-mark=\
    games protocol=tcp src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "ps3 online connetion mark as gaming" dst-port=5223 new-connection-mark=\
    games protocol=tcp src-address-list=internal-nets
add action=mark-connection chain=prerouting comment=\
    "wii online connetion mark as gaming" dst-port=28910,29900,29901,29920 \
    new-connection-mark=games protocol=tcp src-address-list=internal-nets
add action=mark-packet chain=prerouting comment=\
    "games packet mark forever-saken-game" dst-address-list=external-nets \
    new-packet-mark=games-in passthrough=no src-address-list=\
    forever-saken-game
add action=mark-packet chain=prerouting comment="games packet mark wow" \
    dst-address-list=external-nets new-packet-mark=games-in passthrough=no \
    protocol=udp src-port=53,3724
add action=mark-packet chain=prerouting comment=\
    "games packet mark starcraft2" dst-address-list=external-nets \
    new-packet-mark=games-in passthrough=no protocol=udp src-port=1119,6113
add action=mark-packet chain=prerouting comment="games packet mark HoN" \
    dst-address-list=external-nets new-packet-mark=games-in passthrough=no \
    protocol=udp src-port=11031,11235-11335
add action=mark-packet chain=prerouting comment="games packet mark steam in" \
    dst-address-list=external-nets new-packet-mark=games-in passthrough=no \
    port=4380,28960,27000-27030 protocol=udp
add action=mark-packet chain=prerouting comment="games packet mark steam out" \
    dst-port=53,1500,3005,3101,3478,4379-4380,4380,28960,27000-27030,28960 \
    new-packet-mark=games-out passthrough=no protocol=udp src-address-list=\
    internal-nets
add action=mark-packet chain=prerouting comment="games packet mark xbox live" \
    dst-address-list=external-nets new-packet-mark=games-in passthrough=no \
    protocol=udp src-port=88,3074,3544,4500
add action=mark-packet chain=prerouting comment=\
    "games packet mark ps3 online" dst-address-list=external-nets \
    new-packet-mark=games-in passthrough=no protocol=udp src-port=\
    3478,3479,3658
add action=mark-packet chain=prerouting comment="games packet mark in" \
    connection-mark=games dst-address-list=external-nets new-packet-mark=\
    games-in passthrough=no
add action=mark-packet chain=prerouting comment="games packet mark out" \
    connection-mark=games new-packet-mark=games-out passthrough=no
add action=mark-packet chain=prerouting comment=\
    "voip-in packet mark teamspeak" dst-address-list=external-nets \
    new-packet-mark=voip-in passthrough=no protocol=udp src-port=9987
add action=mark-packet chain=prerouting comment=\
    "voip-out packet mark teamspeak" dst-port=9987 new-packet-mark=voip-out \
    passthrough=no protocol=udp src-address-list=internal-nets
add action=mark-packet chain=prerouting comment=\
    "voip-out packet mark teamspeak" dst-address-list=external-nets \
    new-packet-mark=voip-in passthrough=no protocol=udp src-port=9987
add action=mark-packet chain=prerouting comment=\
    "voip-in packet mark ventrilo" dst-address-list=external-nets \
    new-packet-mark=voip-in passthrough=no protocol=udp src-port=3784
add action=mark-packet chain=prerouting comment=\
    "voip-out packet mark ventrilo" dst-port=3784 new-packet-mark=voip-out \
    passthrough=no protocol=udp src-address-list=internal-nets
add action=mark-packet chain=prerouting comment=\
    "voip-in packet mark ventrilo" dst-address-list=external-nets \
    new-packet-mark=voip-in passthrough=no protocol=tcp src-port=3784
add action=mark-packet chain=prerouting comment=\
    "voip-out packet mark ventrilo" dst-port=3784 new-packet-mark=voip-out \
    passthrough=no protocol=tcp src-address-list=internal-nets
add action=mark-packet chain=prerouting comment="voip-in packet mark SIP" \
    dst-address-list=internal-nets new-packet-mark=voip-in passthrough=no \
    port=5060 protocol=tcp
add action=mark-packet chain=prerouting comment="voip-out packet mark SIP" \
    new-packet-mark=voip-out passthrough=no port=5060 protocol=tcp \
    src-address-list=internal-nets
add action=mark-packet chain=prerouting comment="voip-in packet mark udp SIP" \
    dst-address-list=internal-nets new-packet-mark=voip-in passthrough=no \
    port=5004,5060 protocol=udp
add action=mark-packet chain=prerouting comment=\
    "voip-out packet mark udp SIP" new-packet-mark=voip-out passthrough=no \
    port=5004,5060 protocol=udp src-address-list=internal-nets
add action=mark-packet chain=prerouting comment="voip-in packet mark RTP" \
    dst-address-list=internal-nets new-packet-mark=voip-in packet-size=\
    100-400 passthrough=no port=16348-32768 protocol=udp
add action=mark-packet chain=prerouting comment="voip-out packet mark RTP" \
    new-packet-mark=voip-in packet-size=100-400 passthrough=no port=\
    16348-32768 protocol=udp src-address-list=internal-nets
add action=mark-packet chain=prerouting comment="vpn-in packet mark GRE" \
    in-interface=ISP new-packet-mark=vpn-in passthrough=no protocol=gre
add action=mark-packet chain=prerouting comment="vpn-out packet mark GRE" \
    new-packet-mark=vpn-out passthrough=no protocol=gre
add action=mark-packet chain=prerouting comment="vpn-in packet mark ESP" \
    in-interface=ISP new-packet-mark=vpn-in passthrough=no protocol=ipsec-esp
add action=mark-packet chain=prerouting comment="vpn-out packet mark ESP" \
    new-packet-mark=vpn-out passthrough=no protocol=ipsec-esp
add action=mark-packet chain=prerouting comment=\
    "vpn-in packet mark VPN UDP ports" in-interface=ISP new-packet-mark=\
    vpn-in passthrough=no protocol=udp src-port=500,1701,4500
add action=mark-packet chain=prerouting comment=\
    "vpn-out packet mark VPN UDP ports" new-packet-mark=vpn-out passthrough=\
    no protocol=udp src-port=500,1701,4500
add action=mark-packet chain=prerouting comment="vpn-in packet mark PPTP" \
    in-interface=ISP new-packet-mark=vpn-in passthrough=no protocol=tcp \
    src-port=1723
add action=mark-packet chain=prerouting comment="vpn-out packet mark PPTP" \
    new-packet-mark=vpn-out passthrough=no protocol=tcp src-port=1723
add action=mark-packet chain=prerouting comment="all in" in-interface=ISP \
    new-packet-mark=in passthrough=no
add action=mark-packet chain=prerouting comment="all out" new-packet-mark=out \
    passthrough=no
 Finalmente creamos el queue tree:
/queue tree
add max-limit=10M name=in parent=global
add max-limit=10M name=out parent=global
add limit-at=3M max-limit=10M name=http-in packet-mark=http-in parent=in \
    priority=4 queue=default
add limit-at=4M max-limit=10M name=streaming-In packet-mark=\
    streaming-video-in parent=in priority=3 queue=streaming-video-in
add limit-at=500k max-limit=10M name=gaming-in packet-mark=games-in parent=in \
    priority=2 queue=games-in-pcq
add max-limit=10M name=download-in packet-mark=in parent=in queue=default
add max-limit=10M name=upload-out packet-mark=out parent=out queue=default
add limit-at=500k max-limit=10M name=gaming-out packet-mark=games-out parent=\
    out priority=2 queue=default
add limit-at=3M max-limit=10M name=http-out packet-mark=http-out parent=out \
    priority=4 queue=default
add limit-at=4M max-limit=10M name=streaming-Out packet-mark=\
    streaming-video-out parent=out priority=3 queue=default
add limit-at=1M max-limit=10M name=Clientes-In packet-mark=\
    customer-servers-in parent=in priority=1 queue=default
add limit-at=1M max-limit=10M name=Clientes-Out packet-mark=\
    customer-servers-out parent=out priority=1 queue=default
add limit-at=500k max-limit=10M name=voip-in packet-mark=voip-in parent=in \
    priority=1 queue=default
add limit-at=500k max-limit=10M name=vpn-in packet-mark=vpn-in parent=in \
    priority=2 queue=default
add limit-at=500k max-limit=10M name=voip-out packet-mark=voip-out parent=out \
    priority=1 queue=default
add limit-at=500k max-limit=10M name=vpn-out packet-mark=vpn-out parent=out \
    priority=2 queue=default
add limit-at=500k max-limit=10M name=admin-in packet-mark=admin-in parent=in \
    priority=1 queue=default
add limit-at=500k max-limit=10M name=admin-out packet-mark=admin-out parent=\
    out priority=1 queue=default

Aqui se puede observar un exceso en el trafico marcado como descargas:

 alarma en el tráfico http:

Tráfico total:

Fuente: http://gregsowell.com/?p=4665

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