静态主机RNDIS IP由基于linux的USB设备

I have to make a RNDIS connection between a Linux based board and a host machine (it can be WinXP/Win7/Ubuntu, etc).

我必须在基于Linux的板和主机之间建立一个RNDIS连接(可以是WinXP/Win7/Ubuntu等)。

When I connect the board using RNDIS cable, all hosts recognize and start resolving the IP address. On the board side I have given a static IP by executing a command on startup

当我用RNDIS电缆连接板时，所有主机都识别并开始解析IP地址。在董事会方面，我通过在启动时执行命令给了一个静态IP

ifconfig usb0 169.254.1.1 netmask 255.255.0.0 up

but the host machine takes a long time to negotiate the RNDIS IP and every time comes up with some unpredictable IP such as 169.254.abc.xyz.

但是主机需要很长时间来协商RNDIS IP，并且每次都出现一些不可预测的IP，比如169.254.abc.xyz。

I want to assign a static RNDIS IP (say 169.254.1.2) to any host connected with this Linux board. Can somebody help me determine how I can achieve this? On the host side I don’t use any special RNDIS driver. The default USB-Ethernet driver gets downloaded. The Linux version is 2.3.62.

我想将一个静态的RNDIS IP(比如169.254.1.2)分配给任何连接到这个Linux板的主机。谁能帮我决定我该怎么做?在主机端，我不使用任何特殊的RNDIS驱动程序。默认的usb -以太网驱动程序被下载。Linux版本是2.3.62。

2 个解决方案

#1

Ok .. I got the answer .... Actually we have to start a dhcp server over the interface usb0. So whenever USB host will try to seek the dhcp IP, dhcp server running at device and listning at usb0 interface will answer the call and assigned an IP. To fix an Ip just assing oly one IP in IP pool (which can be done in udhcpd.conf file)

好吧. .我得到了答案....实际上，我们必须在usb0接口上启动一个dhcp服务器。因此，每当USB主机试图查找dhcp IP时，在设备上运行的dhcp服务器和在usb0接口上的listning将应答调用并分配一个IP。在Ip池中修复一个Ip(可以在udhcpd中完成)。conf文件)

start the server udhcpd as:

启动服务器udhcpd:

busybox udhcpd /etc/udhcpd.conf

Below is the sample of dhcpd.conf which I used:

下面是dhcpd的样本。参看我以前:

# Sample udhcpd configuration file (/etc/udhcpd.conf)
# Values shown are defaults

# The start and end of the IP lease block
start       169.254.10.102
end     169.254.10.102

# The interface that udhcpd will use
interface   usb0

# The maximum number of leases (includes addresses reserved
# by OFFER's, DECLINE's, and ARP conflicts). Will be corrected
# if it's bigger than IP lease block, but it ok to make it
# smaller than lease block.
#max_leases 254

# The amount of time that an IP will be reserved (leased to nobody)
# if a DHCP decline message is received (seconds)
#decline_time   3600

# The amount of time that an IP will be reserved
# if an ARP conflict occurs (seconds)
#conflict_time  3600

# How long an offered address is reserved (seconds)
#offer_time 60

# If client asks for lease below this value, it will be rounded up
# to this value (seconds)
#min_lease  60

# The location of the pid file
#pidfile    /var/run/udhcpd.pid

# The location of the leases file
#lease_file /var/lib/misc/udhcpd.leases

# The time period at which udhcpd will write out leases file.
# If this is 0, udhcpd will never automatically write leases file.
# Specified in seconds.
#auto_time  7200

# Every time udhcpd writes a leases file, the below script will be called
#notify_file            # default: no script
#notify_file    dumpleases  # useful for debugging

# The following are bootp specific options
# next server to use in bootstrap
#siaddr     192.168.0.22    # default: 0.0.0.0 (none)
# tftp server name
#sname      zorak       # default: none
# tftp file to download (e.g. kernel image)
#boot_file  /var/nfs_root   # default: none

# Static leases map
#static_lease 00:60:08:11:CE:4E 192.168.0.54
#static_lease 00:60:08:11:CE:3E 192.168.0.44

# The remainder of options are DHCP options and can be specified with the
# keyword 'opt' or 'option'. If an option can take multiple items, such
# as the dns option, they can be listed on the same line, or multiple
# lines.
# Examples:
#opt    dns 192.168.10.2 192.168.10.10
option  subnet  255.255.255.0
#opt    router  192.168.10.2
#opt    wins    192.168.10.10
#option dns 129.219.13.81   # appended to above DNS servers for a total of 3
option  domain  local
option  lease   864000      # default: 10 days
#option msstaticroutes  10.0.0.0/8 10.127.0.1       # single static route
#option staticroutes    10.0.0.0/8 10.127.0.1, 10.11.12.0/24 10.11.12.1
# Arbitrary option in hex form:
option  0x08    01020304    # option 8: "cookie server IP addr: 1.2.3.4"

# Currently supported options (for more info, see options.c):
#opt lease      NUM
#opt subnet     IP
#opt broadcast  IP
#opt router     IP_LIST
#opt ipttl      NUM
#opt mtu        NUM
#opt hostname   STRING      # client's hostname
#opt domain     STRING      # client's domain suffix
#opt search     STRING_LIST # search domains
#opt nisdomain  STRING
#opt timezone   NUM     # (localtime - UTC_time) in seconds. signed
#opt tftp       STRING      # tftp server name
#opt bootfile   STRING      # tftp file to download (e.g. kernel image)
#opt bootsize   NUM     # size of that file
#opt rootpath   STRING      # (NFS) path to mount as root fs
#opt wpad       STRING
#opt serverid   IP      # default: server's IP
#opt message    STRING      # error message (udhcpd sends it on success too)
#opt vlanid     NUM     # 802.1P VLAN ID
#opt vlanpriority NUM       # 802.1Q VLAN priority
# Options specifying server(s)
#opt dns        IP_LIST
#opt wins       IP_LIST
#opt nissrv     IP_LIST
#opt ntpsrv     IP_LIST
#opt lprsrv     IP_LIST
#opt swapsrv    IP
# Options specifying routes
#opt routes     IP_PAIR_LIST
#opt staticroutes   STATIC_ROUTES # RFC 3442 classless static route option
#opt msstaticroutes STATIC_ROUTES # same, using MS option number
# Obsolete options, no longer supported
#opt logsrv     IP_LIST # 704/UDP log server (not syslog!)
#opt namesrv    IP_LIST # IEN 116 name server, obsolete (August 1979!!!)
#opt cookiesrv  IP_LIST # RFC 865 "quote of the day" server, rarely (never?) used
#opt timesrv    IP_LIST # RFC 868 time server, rarely(never?) used
# TODO: in development
#opt userclass  STRING      # RFC 3004. set of LASCII strings. "I am a printer" etc
#opt sipserv    STRING LIST # RFC 3361. flag byte, then: 0: domain names, 1: IP addrs

#2

while testing some time udhcpd server were throwing error. So I did little change. First create /var/lib/misc/udhcpd.lease file Adn I modified the conf file as:

在测试时，udhcpd服务器出现了错误。所以我没有做什么改变。首先创建/var/lib/misc/udhcpd.租赁文件Adn I将conf文件修改为:

# Sample udhcpd configuration file (/etc/udhcpd.conf)
# Values shown are defaults

# The start and end of the IP lease block
start       169.254.10.102
end     169.254.10.103

# The interface that udhcpd will use
interface   usb0

# The maximum number of leases (includes addresses reserved
# by OFFER's, DECLINE's, and ARP conflicts). Will be corrected
# if it's bigger than IP lease block, but it ok to make it
# smaller than lease block.
max_leases  1

# The amount of time that an IP will be reserved (leased to nobody)
# if a DHCP decline message is received (seconds)
#decline_time   3600

# The amount of time that an IP will be reserved
# if an ARP conflict occurs (seconds)
#conflict_time  3600

# How long an offered address is reserved (seconds)
#offer_time 60

# If client asks for lease below this value, it will be rounded up
# to this value (seconds)
#min_lease  60

# The location of the pid file
pidfile /var/run/udhcpd.pid

# The location of the leases file
lease_file  /var/lib/misc/udhcpd.leases

# The time period at which udhcpd will write out leases file.
# If this is 0, udhcpd will never automatically write leases file.
# Specified in seconds.
#auto_time  7200

# Every time udhcpd writes a leases file, the below script will be called
#notify_file            # default: no script
#notify_file    dumpleases  # useful for debugging

# The following are bootp specific options
# next server to use in bootstrap
#siaddr     192.168.0.22    # default: 0.0.0.0 (none)
# tftp server name
#sname      zorak       # default: none
# tftp file to download (e.g. kernel image)
#boot_file  /var/nfs_root   # default: none

# Static leases map
#static_lease 00:60:08:11:CE:4E 192.168.0.54
#static_lease 00:60:08:11:CE:3E 192.168.0.44

# The remainder of options are DHCP options and can be specified with the
# keyword 'opt' or 'option'. If an option can take multiple items, such
# as the dns option, they can be listed on the same line, or multiple
# lines.
# Examples:
#opt    dns 192.168.10.2 192.168.10.10
option  subnet  255.255.255.0
#opt    router  192.168.10.2
#opt    wins    192.168.10.10
#option dns 129.219.13.81   # appended to above DNS servers for a total of 3
option  domain  local
option  lease   864000      # default: 10 days
#option msstaticroutes  10.0.0.0/8 10.127.0.1       # single static route
#option staticroutes    10.0.0.0/8 10.127.0.1, 10.11.12.0/24 10.11.12.1
# Arbitrary option in hex form:
#option 0x08    01020304    # option 8: "cookie server IP addr: 1.2.3.4"

# Currently supported options (for more info, see options.c):
#opt lease      NUM
#opt subnet     IP
#opt broadcast  IP
#opt router     IP_LIST
#opt ipttl      NUM
#opt mtu        NUM
#opt hostname   STRING      # client's hostname
#opt domain     STRING      # client's domain suffix
#opt search     STRING_LIST # search domains
#opt nisdomain  STRING
#opt timezone   NUM     # (localtime - UTC_time) in seconds. signed
#opt tftp       STRING      # tftp server name
#opt bootfile   STRING      # tftp file to download (e.g. kernel image)
#opt bootsize   NUM     # size of that file
#opt rootpath   STRING      # (NFS) path to mount as root fs
#opt wpad       STRING
#opt serverid   IP      # default: server's IP
#opt message    STRING      # error message (udhcpd sends it on success too)
#opt vlanid     NUM     # 802.1P VLAN ID
#opt vlanpriority NUM       # 802.1Q VLAN priority
# Options specifying server(s)
#opt dns        IP_LIST
#opt wins       IP_LIST
#opt nissrv     IP_LIST
#opt ntpsrv     IP_LIST
#opt lprsrv     IP_LIST
#opt swapsrv    IP
# Options specifying routes
#opt routes     IP_PAIR_LIST
#opt staticroutes   STATIC_ROUTES # RFC 3442 classless static route option
#opt msstaticroutes STATIC_ROUTES # same, using MS option number
# Obsolete options, no longer supported
#opt logsrv     IP_LIST # 704/UDP log server (not syslog!)
#opt namesrv    IP_LIST # IEN 116 name server, obsolete (August 1979!!!)
#opt cookiesrv  IP_LIST # RFC 865 "quote of the day" server, rarely (never?) used
#opt timesrv    IP_LIST # RFC 868 time server, rarely(never?) used
# TODO: in development
#opt userclass  STRING      # RFC 3004. set of LASCII strings. "I am a printer" etc
#opt sipserv    STRING LIST # RFC 3361. flag byte, then: 0: domain names, 1: IP addrs

Actually I was trying to give IP with static_lease that whosoever connected give it same fixed IP but couldn't succeed.

实际上，我试图用static_lease给IP，无论谁连接到它，都给出相同的固定IP，但不能成功。