Add ICMPv6 validity check

[odhcp6c.git] / README

diff --git a/README b/README
index f1538f43b242305b879ceabcb6befa8757e8e4df..0b4cf9ae1e01d842add38aa8ec46116787ab3f3e 100644 (file)
--- a/README
+++ b/README
@@ -3,29 +3,33 @@ odhcp6c - Embedded DHCPv6 Client
 
 ** Abstract **
 
 
 ** Abstract **
 

-odhcp6c is a minimal DHCPv6 and RA-client for use in embedded Linux systems.
+odhcp6c is a minimal DHCPv6 and RA-client for use in embedded Linux systems
+especially routers. It compiles to only about 30 KB (-Os -s).

 
 
 ** Features **
 
 
 
 ** Features **
 

-1. Handling of non-temporary addresses
-       a) assignment of addresses to source interface
-       b) handling of valid and preferred lifetimes
-       c) duplicate address detection
+1. IPv6 bootstrap from different environments with autodetection
+       a) RA only
+       b) RA + stateless DHCPv6
+       c) RA + stateful DHCPv6 (either IA_NA or IA_PD or both)

 
 

-2. Support for DHCPv6 extension
+2. Handling of non-temporary addresses (IA_NA)
+       a) handling of valid and preferred lifetimes
+       b) automatic fallback to stateless or PD-only mode
+
+3. Support for DHCPv6 extension

        a) Reconfigure-Messages
        a) Reconfigure-Messages

-       b) Prefix Delegation
+       b) Prefix Delegation (including handling of valid and preferred lifetimes)

        c) Prefix Exclusion
        d) DNS Configuration Options
        e) NTP Options
        f) SIP Options
        c) Prefix Exclusion
        d) DNS Configuration Options
        e) NTP Options
        f) SIP Options

+       g) Information-Refresh Options
+       h) Configurable SOL_MAX_RT
+       i) DS-Lite AFTR-Name Option

 
 

-3. Stateless fallback-support
-
-4. State script support
-
-5. Support for requesting and parsing Router Advertisements
+4. Support for requesting and parsing Router Advertisements

        a) parsing of prefixes, routes, MTU and RDNSS options
 
 
        a) parsing of prefixes, routes, MTU and RDNSS options
 
 


@@ -48,7 +52,7 @@ States:
 * bound                        A suitable server was found and addresses or prefixes acquired          
 * informed             A stateless information request returned updated information
 * updated              Updated information was received from the DHCPv6 server
 * bound                        A suitable server was found and addresses or prefixes acquired          
 * informed             A stateless information request returned updated information
 * updated              Updated information was received from the DHCPv6 server

-* ra-updated   Updated information was received from via Router Advertisement
+* ra-updated           Updated information was received from via Router Advertisement

 * rebound              The DHCPv6 client switched to another server
 * unbound              The DHCPv6 client lost all DHCPv6 servers and will restart
 * stopped              The DHCPv6 client has been stopped
 * rebound              The DHCPv6 client switched to another server
 * unbound              The DHCPv6 client lost all DHCPv6 servers and will restart
 * stopped              The DHCPv6 client has been stopped


@@ -61,13 +65,15 @@ Environment:
 * SNTP_FQDN            A space-separated list of SNTP server FQDNs
 * SIP_IP               A space-separated list of SIP servers
 * SIP_DOMAIN           A space-separated list of SIP domains
 * SNTP_FQDN            A space-separated list of SNTP server FQDNs
 * SIP_IP               A space-separated list of SIP servers
 * SIP_DOMAIN           A space-separated list of SIP domains

-* OPTION_<num> Custom option received as base-16
+* OPTION_<num>         Custom option received as base-16

 * PREFIXES             A space-separated list of prefixes currently assigned
 * PREFIXES             A space-separated list of prefixes currently assigned

-                               Format: <prefix>/<length>,preferred,valid
+                               Format: <prefix>/<length>,preferred,valid[,excluded=<excluded-prefix>/<length>][,class=<prefix class #>]

 * ADDRESSES            A space-separated list of addresses currently assigned
                                Format: <address>/<length>,preferred,valid
 * ADDRESSES            A space-separated list of addresses currently assigned
                                Format: <address>/<length>,preferred,valid

-* RA_ADDRESSES A space-separated list of addresses from RA-prefixes
+* RA_ADDRESSES         A space-separated list of addresses from RA-prefixes

                                Format: <address>/<length>,preferred,valid
 * RA_ROUTES            A space-separated list of routes from the RA
                                Format: <address>/<length>,gateway,valid,metric
 * RA_DNS               A space-separated list of recursive DNS servers from the RA
                                Format: <address>/<length>,preferred,valid
 * RA_ROUTES            A space-separated list of routes from the RA
                                Format: <address>/<length>,gateway,valid,metric
 * RA_DNS               A space-separated list of recursive DNS servers from the RA

+* AFTR                 The DS-Lite AFTR domain name
+* AFTR_IP              The DS-Lite AFTR resolved IPv6 address