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Wireshark-bugs: [Wireshark-bugs] [Bug 11215] APN value first letter is not showed

Date: Wed, 20 May 2015 16:06:48 +0000

changed bug 11215


What Removed Added
Status UNCONFIRMED RESOLVED
CC   [email protected]
Resolution --- NOTABUG

Comment # 1 on bug 11215 from
The APN in your capture is not properly encoded. See 3GPP 23.003 chapter 9.1
for its definition:
"The encoding of the APN shall follow the Name Syntax defined in RFC 2181 [18],
RFC 1035 [19] and RFC 1123 [20]. The APN consists of one or more labels. Each
label is coded as a one octet length field followed by that number of octets
coded as 8 bit ASCII characters. Following RFC 1035 [19] the labels shall
consist only of the alphabetic characters (A-Z and a-z), digits (0-9) and the
hyphen (-). Following RFC 1123 [20], the label shall begin and end with either
an alphabetic character or a digit. The case of alphabetic characters is not
significant. The APN is not terminated by a length byte of zero."

Previous versions of Wireshark were not following this specification that
indicates that first byte is the length of the first label, and not the first
character.


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