Buffalo WLAE-AG300N is one of those buggy DHCP clients… Even running firmware Ver.1.85 (R1.05/B1.00)), it gets the length of the DHCP host name wrong so adds a bogus NULL byte to that name.
@Buffalo: please fix this.
The DHCP client options are of structure Type/Length/Value so a client is supposed to set the lengthĀ of the hostname to exactly the number of characters.
However there exist buggy clients that either send a length of 1 more and a \00 at the end of the name,Ā or send a fixed length and pad it with \00 as necessary.
Fromt a packet capture:
