我正在尝试在两个设备之间创建一个蓝牙PAN，在这里我可以通过蓝牙连接访问基于REST的Web服务。我在各种概念验证（蓝牙旧有和蓝牙智能）方面都取得了一些成功，但是在尝试创建组网络或PANU <-> PANU网络时遇到了问题。我可以使用网络访问点方案来使网络正常工作，但是我们的用例需要是单个设备与另一个单个设备进行通信，而没有路由到任何其他设备或网络。
首先，我有一个带有最新Raspbian OS的Raspberry Pi。这带有bluez 5.23。为了使网络访问点正常工作，我使用以下代码：
brctl addbr pan0
brctl setfd pan0 0
brctl stp pan0 off
ifconfig pan0 inet6 add fd00::5ef3:70ff:xxxx:xxxx
iplink set pan0 up
bt-network –d –s nap pan0
这很好用，我能够同时连接Linux和Windows设备。我还可以从与其连接的设备访问Raspberry Pi上运行的Apache Web服务器。
在Linux设备上，我使用blueman进行连接。我还使用了带有–c选项的bt-network进行连接。对于Windows设备（Windows 10平板电脑），我将设备配对，然后从“蓝牙个人局域网设备”屏幕连接到网络。在连接之前，我确实需要使用bluetoothctl来信任两个设备。
在NAP正常工作的情况下，我想尝试按照本文档中的说明使组网络或panu-panu网络正常工作：http : //www.bluetooth.org/docman/handlers/downloaddoc.ashx? doc_id=6554 这些方案将因为我们不想路由到任何其他网络或设备，所以最适合我们（panu-panu方案是理想的）
我最初的想法是，我需要做的就是将bt-network命令更改为以下两个命令之一：
bt-network –d –s gn pan0
bt-network –d –s panu pan0
这两个命令均以任何错误启动，但我无法在Linux或Windows设备之间建立网络连接。我能够成功配对设备（我正在使用“ hciconfig hci0 piscan”命令进行播发），但无法启动网络。
如果运行hcidump，将得到以下输出。注意我包括了连接尝试中的整个hcidump，因此它很长，但我认为这可能有助于确定问题。这是针对组网络的，但是在panu-panu方案中我遇到了相同的错误：
HCI sniffer - Bluetooth packet analyzer ver 5.23
device: hci0 snap_len: 1500 filter: 0xffffffff
> HCI Event: Connect Request (0x04) plen 10
bdaddr 5C:F3:70:66:XX:XX class 0x000000 type ACL
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
bdaddr 5C:F3:70:66:XX:XX role 0x00
Role: Master
> HCI Event: Command Status (0x0f) plen 4
Accept Connection Request (0x01|0x0009) status 0x00 ncmd 1
> HCI Event: Role Change (0x12) plen 8
status 0x00 bdaddr 5C:F3:70:66:XX:XX role 0x00
Role: Master
> HCI Event: Connect Complete (0x03) plen 11
status 0x00 handle 11 bdaddr 5C:F3:70:66:XX:XX type ACL encrypt 0x00
< HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2
handle 11
> HCI Event: Command Status (0x0f) plen 4
Read Remote Supported Features (0x01|0x001b) status 0x00 ncmd 1
> HCI Event: Max Slots Change (0x1b) plen 3
handle 11 slots 5
> HCI Event: Read Remote Supported Features (0x0b) plen 11
status 0x00 handle 11
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
< HCI Command: Read Remote Extended Features (0x01|0x001c) plen 3
handle 11 page 1
> HCI Event: Command Status (0x0f) plen 4
Read Remote Extended Features (0x01|0x001c) status 0x00 ncmd 1
> HCI Event: Read Remote Extended Features (0x23) plen 13
status 0x00 handle 11 page 1 max 1
Features: 0x03 0x00 0x00 0x00 0x00 0x00 0x00 0x00
< HCI Command: Remote Name Request (0x01|0x0019) plen 10
bdaddr 5C:F3:70:66:XX:XX mode 2 clkoffset 0x0000
< ACL data: handle 11 flags 0x00 dlen 10
L2CAP(s): Info req: type 2
> HCI Event: Command Status (0x0f) plen 4
Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
> HCI Event: Remote Name Req Complete (0x07) plen 255
status 0x00 bdaddr 5C:F3:70:66:XX:XX name 'raspberrypi'
> HCI Event: IO Capability Response (0x32) plen 9
bdaddr 5C:F3:70:66:XX:XX capability 0x01 oob 0x00 auth 0x03
Capability: DisplayYesNo (OOB data not present)
Authentication: Dedicated Bonding (MITM Protection)
> HCI Event: IO Capability Request (0x31) plen 6
bdaddr 5C:F3:70:66:XX:XX
< HCI Command: IO Capability Request Reply (0x01|0x002b) plen 9
bdaddr 5C:F3:70:66:XX:XX capability 0x03 oob 0x00 auth 0x02
Capability: NoInputNoOutput (OOB data not present)
Authentication: Dedicated Bonding (No MITM Protection)
> HCI Event: Command Complete (0x0e) plen 10
IO Capability Request Reply (0x01|0x002b) ncmd 1
status 0x00 bdaddr 5C:F3:70:66:XX:XX
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 11 packets 1
> HCI Event: User Confirmation Request (0x33) plen 10
bdaddr 5C:F3:70:66:XX:XX passkey 774674
< HCI Command: User Confirmation Request Reply (0x01|0x002c) plen 6
bdaddr 5C:F3:70:66:XX:XX
> HCI Event: Command Complete (0x0e) plen 10
User Confirmation Request Reply (0x01|0x002c) ncmd 1
status 0x00 bdaddr 5C:F3:70:66:XX:XX
> HCI Event: Simple Pairing Complete (0x36) plen 7
status 0x00 bdaddr 5C:F3:70:66:XX:XX
> HCI Event: Link Key Notification (0x18) plen 23
bdaddr 5C:F3:70:66:XX:XX key 839802CBF65CA6D1D864F91831A288B0 type 4
Type: Unauthenticated Combination Key
> HCI Event: Encrypt Change (0x08) plen 4
status 0x00 handle 11 encrypt 0x01
> ACL data: handle 11 flags 0x02 dlen 10
L2CAP(s): Info req: type 2
> ACL data: handle 11 flags 0x02 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x02b8
Enhanced Retransmission mode
Streaming mode
FCS Option
Fixed Channels
Unicast Connectless Data Reception
< ACL data: handle 11 flags 0x00 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x02b8
Enhanced Retransmission mode
Streaming mode
FCS Option
Fixed Channels
Unicast Connectless Data Reception
< ACL data: handle 11 flags 0x00 dlen 10
L2CAP(s): Info req: type 3
> ACL data: handle 11 flags 0x02 dlen 10
L2CAP(s): Info req: type 3
< ACL data: handle 11 flags 0x00 dlen 20
L2CAP(s): Info rsp: type 3 result 0
Fixed channel list 0x00000006
L2CAP Signalling Channel
L2CAP Connless
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 11 packets 2
> ACL data: handle 11 flags 0x02 dlen 20
L2CAP(s): Info rsp: type 3 result 0
Fixed channel list 0x00000006
L2CAP Signalling Channel
L2CAP Connless
> ACL data: handle 11 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 1 scid 0x0040
< ACL data: handle 11 flags 0x00 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
Connection successful
< ACL data: handle 11 flags 0x00 dlen 23
L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 11
RFC 0x00 (Basic)
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 11 packets 2
> ACL data: handle 11 flags 0x02 dlen 23
L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 11
RFC 0x00 (Basic)
< ACL data: handle 11 flags 0x00 dlen 18
L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4
MTU 672
> ACL data: handle 11 flags 0x02 dlen 18
L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 4
MTU 672
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 11 packets 2
> ACL data: handle 11 flags 0x02 dlen 24
L2CAP(d): cid 0x0040 len 20 [psm 1]
SDP SSA Req: tid 0x0 len 0xf
pat uuid-16 0x0100 (L2CAP)
max 65535
aid(s) 0x0000 - 0xffff
cont 00
< ACL data: handle 11 flags 0x00 dlen 606
L2CAP(d): cid 0x0040 len 602 [psm 1]
SDP SSA Rsp: tid 0x0 len 0x255
count 594
record #0
aid 0x0000 (SrvRecHndl)
uint 0x10001
aid 0x0001 (SrvClassIDList)
< uuid-16 0x1800 >
aid 0x0004 (ProtocolDescList)
< < uuid-16 0x0100 (L2CAP) uint 0x1f > <
uuid-16 0x0007 uint 0x1 uint 0x8 > >
aid 0x0005 (BrwGrpList)
< uuid-16 0x1002 (PubBrwsGrp) >
aid 0x000a (DocURL)
url "http://www.bluez.org/"
aid 0x000b (ClientExeURL)
url "http://www.bluez.org/"
aid 0x000c (IconURL)
url "http://www.bluez.org/"
aid 0x0100 (SrvName)
str "Generic Access Profile"
aid 0x0102 (ProviderName)
str "BlueZ"
record #1
aid 0x0000 (SrvRecHndl)
uint 0x10002
aid 0x0001 (SrvClassIDList)
< uuid-16 0x1801 >
aid 0x0004 (ProtocolDescList)
< < uuid-16 0x0100 (L2CAP) uint 0x1f > <
uuid-16 0x0007 uint 0x10 uint 0x10 > >
aid 0x0005 (BrwGrpList)
< uuid-16 0x1002 (PubBrwsGrp) >
aid 0x0100 (SrvName)
str "Generic Attribute Profile"
aid 0x0102 (ProviderName)
str "BlueZ"
record #2
aid 0x0000 (SrvRecHndl)
uint 0x10003
aid 0x0001 (SrvClassIDList)
< uuid-16 0x110e (AVRemote) uuid-16 0x110f (AVRemCt) >
aid 0x0004 (ProtocolDescList)
< < uuid-16 0x0100 (L2CAP) uint 0x17 > <
uuid-16 0x0017 (AVCTP) uint 0x103 > >
aid 0x0005 (BrwGrpList)
< uuid-16 0x1002 (PubBrwsGrp) >
aid 0x0009 (BTProfileDescList)
< < uuid-16 0x110e (AVRemote) uint 0x105 > >
aid 0x000d (AdditionalProtocolDescLists)
< < < uuid-16 0x0100 (L2CAP) uint 0x1b > < uuid-16 0x0017 (AVCTP) uint 0x103 > > >
aid 0x0100 (SrvName)
str "AVRCP CT"
aid 0x0311 (SuppFeatures)
uint 0x4f
record #3
aid 0x0000 (SrvRecHndl)
uint 0x10004
aid 0x0001 (SrvClassIDList)
< uuid-16 0x110c (AVRemTarget) >
aid 0x0004 (ProtocolDescList)
< < uuid-16 0x0100 (L2CAP) uint 0x17 > <
uuid-16 0x0017 (AVCTP) uint 0x103 > >
aid 0x0005 (BrwGrpList)
< uuid-16 0x1002 (PubBrwsGrp) >
aid 0x0009 (BTProfileDescList)
< < uuid-16 0x110e (AVRemote) uint 0x104 > >
aid 0x000d (AdditionalProtocolDescLists)
< < < uuid-16 0x0100 (L2CAP) uint 0x1b > < uuid-16 0x0017 (AVCTP) uint 0x103 > > >
aid 0x0100 (SrvName)
str "AVRCP TG"
aid 0x0311 (SuppFeatures)
uint 0x5f
record #4
aid 0x0000 (SrvRecHndl)
uint 0x10005
aid 0x0001 (SrvClassIDList)
< uuid-16 0x1117 (GN) >
aid 0x0004 (ProtocolDescList)
< < uuid-16 0x0100 (L2CAP) uint 0xf > <
uuid-16 0x000f (BNEP) uint 0x100 < uint 0x800 uint 0x806 > > >
aid 0x0005 (BrwGrpList)
< uuid-16 0x1002 (PubBrwsGrp) >
aid 0x0006 (LangBaseAttrIDList)
< uint 0x656e uint 0x6a uint 0x100 >
aid 0x0009 (BTProfileDescList)
< < uuid-16 0x1117 (GN) uint 0x100 > >
aid 0x0100 (SrvName)
str "Network service"
aid 0x0101 (SrvDesc)
str "Network service"
aid 0x030a (SecurityDescription)
uint 0x1
cont 00
> ACL data: handle 11 flags 0x02 dlen 24
L2CAP(d): cid 0x0040 len 20 [psm 1]
SDP SSA Req: tid 0x1 len 0xf
pat uuid-16 0x1200 (PNPInfo)
max 65535
aid(s) 0x0000 - 0xffff
cont 00
< ACL data: handle 11 flags 0x00 dlen 88
L2CAP(d): cid 0x0040 len 84 [psm 1]
SDP SSA Rsp: tid 0x1 len 0x4f
count 76
record #0
aid 0x0000 (SrvRecHndl)
uint 0x10000
aid 0x0001 (SrvClassIDList)
< uuid-16 0x1200 (PNPInfo) >
aid 0x0005 (BrwGrpList)
< uuid-16 0x1002 (PubBrwsGrp) >
aid 0x0009 (BTProfileDescList)
< < uuid-16 0x1200 (PNPInfo) uint 0x103 > >
aid 0x0200 (VersionNumList)
uint 0x103
aid 0x0201 (SrvDBState)
uint 0x1d6b
aid 0x0202 (unknown)
uint 0x246
aid 0x0203 (unknown)
uint 0x517
aid 0x0204 (unknown)
bool 0x1
aid 0x0205 (unknown)
uint 0x2
cont 00
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 11 packets 2
> ACL data: handle 11 flags 0x02 dlen 12
L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
< ACL data: handle 11 flags 0x00 dlen 12
L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 11 packets 1
> HCI Event: Disconn Complete (0x05) plen 4
status 0x00 handle 11 reason 0x13
Reason: Remote User Terminated Connection
> HCI Event: Connect Request (0x04) plen 10
bdaddr 5C:F3:70:66:XX:XX class 0x000000 type ACL
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
bdaddr 5C:F3:70:66:XX:XX role 0x00
Role: Master
> HCI Event: Command Status (0x0f) plen 4
Accept Connection Request (0x01|0x0009) status 0x00 ncmd 1
> HCI Event: Role Change (0x12) plen 8
status 0x00 bdaddr 5C:F3:70:66:XX:XX role 0x00
Role: Master
> HCI Event: Connect Complete (0x03) plen 11
status 0x00 handle 12 bdaddr 5C:F3:70:66:XX:XX type ACL encrypt 0x00
< HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2
handle 12
> HCI Event: Command Status (0x0f) plen 4
Read Remote Supported Features (0x01|0x001b) status 0x00 ncmd 1
> HCI Event: Max Slots Change (0x1b) plen 3
handle 12 slots 5
> HCI Event: Read Remote Supported Features (0x0b) plen 11
status 0x00 handle 12
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
< HCI Command: Read Remote Extended Features (0x01|0x001c) plen 3
handle 12 page 1
> HCI Event: Command Status (0x0f) plen 4
Read Remote Extended Features (0x01|0x001c) status 0x00 ncmd 1
> HCI Event: Read Remote Extended Features (0x23) plen 13
status 0x00 handle 12 page 1 max 1
Features: 0x03 0x00 0x00 0x00 0x00 0x00 0x00 0x00
< HCI Command: Remote Name Request (0x01|0x0019) plen 10
bdaddr 5C:F3:70:66:XX:XX mode 2 clkoffset 0x0000
< ACL data: handle 12 flags 0x00 dlen 10
L2CAP(s): Info req: type 2
> HCI Event: Command Status (0x0f) plen 4
Remote Name Request (0x01|0x0019) status 0x00 ncmd 1
> HCI Event: Remote Name Req Complete (0x07) plen 255
status 0x00 bdaddr 5C:F3:70:66:XX:XX name 'raspberrypi'
> HCI Event: Link Key Request (0x17) plen 6
bdaddr 5C:F3:70:66:XX:XX
< HCI Command: Link Key Request Reply (0x01|0x000b) plen 22
bdaddr 5C:F3:70:66:XX:XX key 839802CBF65CA6D1D864F91831A288B0
> HCI Event: Command Complete (0x0e) plen 10
Link Key Request Reply (0x01|0x000b) ncmd 1
status 0x00 bdaddr 5C:F3:70:66:XX:XX
> HCI Event: Encrypt Change (0x08) plen 4
status 0x00 handle 12 encrypt 0x01
> ACL data: handle 12 flags 0x02 dlen 10
L2CAP(s): Info req: type 2
< ACL data: handle 12 flags 0x00 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x02b8
Enhanced Retransmission mode
Streaming mode
FCS Option
Fixed Channels
Unicast Connectless Data Reception
> ACL data: handle 12 flags 0x02 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x02b8
Enhanced Retransmission mode
Streaming mode
FCS Option
Fixed Channels
Unicast Connectless Data Reception
< ACL data: handle 12 flags 0x00 dlen 10
L2CAP(s): Info req: type 3
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 12 packets 2
> ACL data: handle 12 flags 0x02 dlen 10
L2CAP(s): Info req: type 3
< ACL data: handle 12 flags 0x00 dlen 20
L2CAP(s): Info rsp: type 3 result 0
Fixed channel list 0x00000006
L2CAP Signalling Channel
L2CAP Connless
> ACL data: handle 12 flags 0x02 dlen 20
L2CAP(s): Info rsp: type 3 result 0
Fixed channel list 0x00000006
L2CAP Signalling Channel
L2CAP Connless
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 12 packets 2
> ACL data: handle 12 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 15 scid 0x0040
< ACL data: handle 12 flags 0x00 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 1 status 2
Connection pending - Authorization pending
< ACL data: handle 12 flags 0x00 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 3 status 0
Connection refused - security block
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 12 packets 2
> HCI Event: Disconn Complete (0x05) plen 4
status 0x00 handle 12 reason 0x13
Reason: Remote User Terminated Connection
在此转储结束时，我收到错误消息：“连接被拒绝-安全块”。我相信这是问题所在，但两端的设备我都值得信赖。无论我尝试使用gn还是panu作为服务器类型，并从Linux或Window设备进行连接，都会遇到相同的错误。
我确实看到了许多有关网络访问点（NAP）的示例，但是我很难找到有关群组或Panu网络的示例。有没有人成功使用bt-network（bluez 5.23）使组或panu网络正常工作？我只是在想什么吗？任何帮助，将不胜感激。
谢谢
乔恩