Signed-off-by: Chris Packham judge.packham@gmail.com ---
README | 3 +++ doc/README.ipv6 | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 doc/README.ipv6
diff --git a/README b/README index c22b60b..6118de2 100644 --- a/README +++ b/README @@ -1116,6 +1116,7 @@ The following options need to be configured: CONFIG_CMD_MTDPARTS * MTD partition support CONFIG_CMD_NAND * NAND support CONFIG_CMD_NET bootp, tftpboot, rarpboot + CONFIG_CMD_NET6 * tftpboot6 CONFIG_CMD_NFS NFS support CONFIG_CMD_PCA953X * PCA953x I2C gpio commands CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command @@ -1123,6 +1124,8 @@ The following options need to be configured: CONFIG_CMD_PCMCIA * PCMCIA support CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network host + CONFIG_CMD_PING6 * send ICMPv6 ECHO_REQUEST to network + host CONFIG_CMD_PORTIO * Port I/O CONFIG_CMD_READ * Read raw data from partition CONFIG_CMD_REGINFO * Register dump diff --git a/doc/README.ipv6 b/doc/README.ipv6 new file mode 100644 index 0000000..d4f738f --- /dev/null +++ b/doc/README.ipv6 @@ -0,0 +1,34 @@ +IPv6 Support in U-boot +---------------------- +IPv6 support in U-boot can be considered experimental. The commands +currently supported are tftpboot6 and ping6. + +The following environment variables are used +- ip6addr - IPv6 address of the device +- prefixlength6 - The prefix length of the IPv6 subnet (equivalent to + netmask for IPv4) +- gatewayip6 - IPv6 address of the default gateway +- serverip6 - IPv6 of the tftp server + +Configuration +------------- +The following configuration option needs to be selected to support IPv6. +- CONFIG_CMD_NET6 +Optionally the following can also be selected to enable the ping6 +command. +- CONFIG_CMD_PING6 + +TFTP Server Configuration +------------------------- +At the time of writing U-boot has been tested against tftp-hpa +(https://www.kernel.org/pub/software/network/tftp/) the default Debian +package sets TFTP_ADDRESS=0.0.0.0:69 (in /etc/default/tftpd-hpa) to +support both IPv4 and IPv6 this need to be changed to ':69'. + +Ethernet Driver Requirements +---------------------------- +For IPv6 to operate correctly the Ethernet device needs to support +transmission and reception of L2 multicast packets. Transmission is +usually not a problem. To receive multicast packets the driver needs to +enable promiscuous mode (some devices have the option of just enabling +promiscuous multicast reception).