X-Git-Url: http://www.git.cypherpunks.ru/?p=nncp.git;a=blobdiff_plain;f=doc%2Fmcd.texi;h=282261e978fdd324ad364a5179402aaea50490d2;hp=0e47ce65684149c9f8f5b60beda5ddd9664c617e;hb=203dfe36da7adf2b3089e4fa4017a67409cbad70;hpb=369ef72fdf833e4d9d76be076dbaf45cf5ca1e62 diff --git a/doc/mcd.texi b/doc/mcd.texi index 0e47ce6..282261e 100644 --- a/doc/mcd.texi +++ b/doc/mcd.texi @@ -1,4 +1,6 @@ @node MCD +@cindex MCD +@cindex multicast discovery @unnumbered MultiCast Discovery MCD is an addition to online @ref{Sync, synchronization protocol}, that @@ -7,11 +9,10 @@ in local area network. It is very simple: @itemize @item - @command{nncp-daemon} sends multicast messages about its presence - from time to time. - See @ref{CfgMCDSend, mcd-send} configuration option. + @ref{nncp-daemon} sends multicast messages about its presence from + time to time. See @ref{CfgMCDSend, mcd-send} configuration option. @item - When @command{nncp-caller} sees them, it adds them as the most + When @ref{nncp-caller} sees them, it adds them as the most preferred addresses to already known ones. If MCD address announcement was not refreshed after two minutes -- it is removed. See @ref{CfgMCDListen, mcd-listen} and @@ -27,9 +28,9 @@ MCD announcement is an XDR-encoded packet with only two fields: @end verbatim Magic number is @verb{|N N C P D 0x00 0x00 0x01|} and sender is 32-byte -identifier of the node. It is sent as UDP packet on IPv6 @verb{|ff02::1|} -multicast address (all hosts in the network) and hard-coded @strong{5400} -port. Operating system will use IPv6 link-local address as a source one, -with the port taken from @command{nncp-daemon}'s @option{-bind} option. -That way, IP packet itself will carry the link-scope reachable address -of the daemon. +identifier of the node. It is sent as UDP packet on IPv6 +@strong{@verb{|ff02::4e4e:4350|}} (hexadecimal ASCII @verb{|NNCP|}) +multicast address and @strong{5400} port. Operating system will use IPv6 +link-local address as a source one, with the port taken from +@command{nncp-daemon}'s @option{-bind} option. That way, IP packet +itself will carry the link-scope reachable address of the daemon.