Steve, An embryonic connection is a half-open connection. Take TCP, for example. With TCP, it goes through a three-way handshake (3 exchanges): SYN, SYN/ACK, ACK. An example of an embryonic connection for TCP would be to see a SYN without the other two parts of a handshake. This is a very popular form of a Denial of Service (DoS) attack where a hacker floods a service with TCP SYNs. Many firewall solutions, including the PIX and the IOS Firewall feature set have mechanisms to deal with this kind of attack.
Hope this helps. Cheers! -- Richard Deal * Author of the ebook "CCNA Secrets Revealed!" and Exam Cram and Exam Prep books from the Coriolis Group * Test author for QuizWare (www.quizware.com) ""Steve Smith"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Can anyone explain the term embryonic connections? I have a box that has > increasing dropped embryonic connections which if I knew exactly what > the term meant maybe I could help this Telco figure out what is wrong > with their box that they say has no problems must be my router thing > going on. > > Thanks! > > Steve Smith MCSE, CCNA, CCDA > Data Networks Technical Manager > Freeliant Inc. > [EMAIL PROTECTED] > > The brave may not live forever, but the cautious never live. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38474&t=38451 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
