[dhcwg] RFC2131 - option multiple times

 Hi,
Thank you for your replies.
My question was much simpler:
 RFC2131 says:

   The values to be passed in an 'option' tag may be too long to fit in
   the 255 octets available to a single option (e.g., a list of routers
   in a 'router' option [21]).  Options may appear only once, unless
   otherwise specified in the options document.  The client concatenates
   the values of multiple instances of the same option into a single
   parameter list for configuration.

I interpreted it like this:
  The rule is, that a specific option may appear only once in
  a dhcp message.
  The exception from this rule is, that the option document (RFC2132 or
other)
  tells , that the option may appear multiple times.
  Then the multiple instances of the option have to be concatenated into
  one instance before interpretation.

  So I am missing in RFC2131 hints, which option may appear multiple times
and
  therefore have to be concatenated during reception(e.g. router option ?)

  I think all options using charackter strings or lists (of ip addresses)
may
  be split during send and have to be concatenated during reception
 , but RFC2132 tells nothing about this.

Best regards
  Peter

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[dhcwg] RFC2131 - option multiple times - which ones ?