Why system logging "kernel: tcp_parse_options: Illegal window scaling value 15 >14 received" error ?

Solution Unverified - Updated -

Issue

  • Found following logs in var/log/messages file.
Oct  6 21:01:05 mplttaxsx101 kernel: tcp_parse_options: Illegal window scaling value 15 >14 received.
Oct  6 21:01:05 mplttaxsx101 kernel: tcp_parse_options: Illegal window scaling value 15 >14 received.
Oct  7 10:57:22 mplttaxsx101 kernel: tcp_parse_options: Illegal window scaling value 15 >14 received.
Oct  7 10:57:23 mplttaxsx101 kernel: tcp_parse_options: Illegal window scaling value 15 >14 received.

Environment

  • Red Hat Enterprise Linux 5.8

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