Seit Junos 14.2 ist es möglich auf bestimmte Byte/Bit Werte in Paketheadern zu prüfen. Damit kann man z.B. prüfen ob an Stelle X eines UDP Pakets an Port 123 der Wert 0x2a steht und dann das Paket verwerfen. Dabei handelt es sich um Monlist Anfragen :)
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