Статический хост RNDIS IP с помощью устройства USB Gadget на основе Linux

Question

Мне нужно подключить RNDIS между базой данных на базе Linux и главной машиной (это может быть WinXP/Win7/Ubuntu и т. Д.).

Когда я подключаю плату с помощью кабеля RNDIS, все хосты распознают и начинают разрешать IP-адрес. На стороне платы, я дал статический IP, выполнив команду при запуске

ifconfig usb0 169.254.1.1 netmask 255.255.0.0 up 

но хозяин машины занимает много времени, чтобы договориться о RNDIS IP и каждый раз, когда приходит с некоторыми непредсказуемыми IP, таких как 169.254.abc.xyz.

Я хочу назначить статический RNDIS IP (скажем 169.254.1.2) любому хосту, подключенному к этой плате Linux. Может ли кто-нибудь помочь мне определить, как я могу это достичь? На стороне хоста я не использую специальный драйвер RNDIS. По умолчанию загружается драйвер USB-Ethernet по умолчанию. Версия Linux - 2.3.62.

Answer 1

Хорошо .. Я получил ответ ... На самом деле нам нужно запустить сервер dhcp через интерфейс usb0. Поэтому всякий раз, когда USB-хост попытается найти IP-адрес dhcp, сервер dhcp, запущенный на устройстве, и перечислит интерфейс usb0, ответит на вызов и назначит IP-адрес. Чтобы исправить Ip только один Oly то присваивает IP в IP-пул (который может быть сделано в udhcpd.conf файле)

начать udhcpd сервера, как:

busybox udhcpd /etc/udhcpd.conf 

Ниже приведен образец dhcpd.conf, который я использовано:

# 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 

Answer 2

при тестировании некоторое время сервер udhcpd ошибался. Поэтому я немного изменился. Сначала создайте файл /var/lib/misc/udhcpd.lease Adn Я изменил файл конф как:

# 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 

На самом деле я пытался дать IP с static_lease, что всякий, кто связан придать ему тот же фиксированный IP, но не смог добиться успеха ,