Foundry Networks Inc. Information for VU#464113
TCP/IP implementations handle unusual flag combinations inconsistently
- Vendor Information Help Date Notified:
- Statement Date: 27 Mar 2003
- Date Updated: 01 Apr 2003
Foundry Networks does not produce stateful or packet filtering firewalls, but do support high speed packet filtering ACLs on its products. An ACL with the "established" operator turned on will filter on all TCP packets with the ACK (Acknowledgment) or RST (Reset) bits set to "1" (on) in the control filed of the TCP packet header. Current versions of shipping software will not permit unexpected combinations of SYN flags.
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