Messages in this thread | | | From | (Alan Cox) | Subject | Re: ipv4 bind()ing bug | Date | Sat, 13 Sep 1997 15:45:26 +0100 (BST) |
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> zero. Normal un*x behavior is to assign a "random" port number > between IPPORT_RESERVED (1024) and IPPORT_USERRESERVED (5000). Linux, > however, assigns a port number between 1024 and 32767. This can be a
Solaris does something similar as do SGI nowdays - its a big win to do so, and 4000 user ports isnt enough.
> IPPOR_USERRESERVED. This can also screw with firewalls and packet > filters which assume normal clients only use port numbers in the > 1024-5000 range.
Your packet filter is badly set up if its using ports for tcp client/server filtering not SYN|!ACK
Alan
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