用 NM-8AM 或 NM-16AM 模拟调制解调器模块配置拨入

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已更新: 2010 年 2 月 4 日

文档 ID:24393

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简介

本文档提供使用带NM-xAM模拟调制解调器网络模块的调制解调器进行拨号的示例配置。在此场景中，带有NM-8AM调制解调器模块的路由器充当远程接入服务器，用于拨入企业网络。

注意：本文档不涉及使用NM-8AM或NM-16AM进行拨出。有关此类示例，请参阅文档使用NM-8AM或NM-16AM模拟调制解调器模块配置拨出。

先决条件

要求

本文档假设您对调制解调器配置相关的各种问题有充分的了解。如果您需要有关这些问题的详细信息，请参阅《调制解调器 — 路由器连接指南》。

NM-AM模块要求将单个模拟普通旧电话服务(POTS)线路插入端口。请确保POTS线路正常运行，方法是将电话连接到线路，并在将其插入NM-AM端口之前测试其来话和去话呼叫。

单个端口可以有单独的电话号码（在本例中，我们使用八个不同的电话号码），也可以在一个寻线组中有全部八个电话号码（电话提供商需要这样做）。使用第一个选项，如果之前的呼叫仍连接在该特定号码上，用户会收到忙信号。使用第二个选项，呼叫会自动回滚到下一个可用端口。
请务必为带NM-AM模块的Cisco 2600和3600路由器使用正确接地的电源；否则，NM-AM调制解调器呼叫会发出蜂鸣声，表明其连接不良或失败。有关详细信息，请参阅文档在Cisco 2600系列和Cisco 3600系列路由器上安装接地片。
建议在NM-AM上使用最新固件版本。使用show modem version命令检查此情况。

使用的组件

本文档中的信息基于以下软件和硬件版本：

带NM-8AM卡的Cisco 3640路由器运行Cisco IOS®^软件版本12.2(8)T。
调制解调器固件版本1.2.8。

注意：调制解调器固件版本1.2.8捆绑到Cisco IOS中。
思科IOS软件版本12.1(5)T和12.2。它不是非捆绑的。
装有Microsoft Windows 2000操作系统的PC。

配置

本部分提供有关如何配置本文档所述功能的信息。

注：要查找有关本文档中使用的命令的其他信息，请使用命令查找工具(仅注册客户)。

远程访问服务器（Cisco 3640路由器）
Current configuration : 1251 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log uptime no service password-encryption ! hostname cisco3640 ! boot system flash:c3640-i-mz.122-8.T enable secret 5 <deleted> ! username abc password 0 abc ! -- Usernames for local authentication of the call. ! -- The client presents the username/password and the NAS ! -- authenticates the peer. ip subnet-zero ! no ip domain-lookup ip domain-name cisco.com ! async-bootp dns-server 5.5.5.1 5.5.5.2 ! -- Specifies (for async clients) the IP address of domain name server. ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.0 ! interface Ethernet2/0 ip address 20.20.20.1 255.255.255.0 half-duplex ! ! <<--Unused interface configuration omitted. ! interface Group-Async1 ! -- This group-async interface is the configuration template for all modems. ! -- Individual async interface do not have to be configured since they ! -- can be cloned from one managed copy. ip unnumbered Loopback0 encapsulation ppp dialer in-band dialer idle-timeout 600 ! -- Sets Idle timer to 600 seconds (10 minutes). dialer-group 1 !--- Apply interesting traffic definition from dialer-list 1. ! -- Note: The specified dialer-group number must be the same as ! -- the dialer-list number; in this example, defined to be "1". ! -- Interesting traffic specifies the packets that should reset the idle timer. async mode interactive ! -- If the async interface is to answer different connection types ! -- (exec,ppp,slip), use this command in conjunction with autoselect ppp ! -- under the line configuration to auto detect the connection type. ! -- To prevent users from establishing an "EXEC session" to the router. ! -- use the command async modem dedicated instead. peer default ip address pool DIALIN ! -- Clients are assigned addresses from the ip address pool named "DIALIN". ppp authentication chap group-range 1 8 ! -- Modems/lines 1 to 8 are members of this group async interface. ! -- If you want, for example, only 4 modems for incoming and the rest ! -- for outgoing then configure the group range for any set of ! -- four consecutive modems in the module. ! -- Note: this range must be included within the line configuration below. ! ip local pool DIALIN 10.1.1.1 10.1.1.10 ! -- IP address pool for dialin clients. ip classless ip route 0.0.0.0 0.0.0.0 20.20.20.100 ip http server ip pim bidir-enable ! ! dialer-list 1 protocol ip permit ! -- Specifies all IP traffic as interesting. Interesting traffic ! -- specifies the packets that should reset the idle timer. ! -- This is applied to interface Group-Async 1 using dialer-group 1. ! -- Note: The specified dialer-list number must be the same as the ! -- dialer-group number; in this example, defined to be "1". ! line con 0 password abc line 1 8 ! -- TTY lines for the NM-8AM Modems. ! -- Note the line number range matched the group-range ! -- under the group-async config. modem InOut ! -- Support incoming and outgoing modem calls. transport input all autoselect ppp ! -- Launch PPP if PPP packets are detected. This is used in conjunction ! -- with async mode interactive* under the group-async configuration.* flowcontrol hardware line aux 0 line vty 0 4 login ! ! end

Current configuration : 1251 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log uptime
no service password-encryption
!
hostname cisco3640
!
boot system flash:c3640-i-mz.122-8.T
enable secret 5 <deleted>
!
username abc password 0 abc

! -- Usernames for local authentication of the call. ! -- The client presents the username/password and the NAS ! -- authenticates the peer.

ip subnet-zero
!
no ip domain-lookup
ip domain-name cisco.com
!
async-bootp dns-server 5.5.5.1 5.5.5.2

! -- Specifies (for async clients) the IP address of domain name server.

!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface Ethernet2/0
ip address 20.20.20.1 255.255.255.0
half-duplex
!

! <<--Unused interface configuration omitted.

!
interface Group-Async1

! -- This group-async interface is the configuration template for all modems. ! -- Individual async interface do not have to be configured since they ! -- can be cloned from one managed copy.

ip unnumbered Loopback0
encapsulation ppp
dialer in-band
dialer idle-timeout 600

! -- Sets Idle timer to 600 seconds (10 minutes).

dialer-group 1

!--- Apply interesting traffic definition from dialer-list 1. ! -- Note: The specified dialer-group number must be the same as ! -- the dialer-list number; in this example, defined to be "1". ! -- Interesting traffic specifies the packets that should reset the idle timer.

async mode interactive

! -- If the async interface is to answer different connection types ! -- (exec,ppp,slip), use this command in conjunction with autoselect ppp ! -- under the line configuration to auto detect the connection type. ! -- To prevent users from establishing an "EXEC session" to the router. ! -- use the command async modem dedicated instead.

peer default ip address pool DIALIN

! -- Clients are assigned addresses from the ip address pool named "DIALIN".

ppp authentication chap
group-range 1 8

! -- Modems/lines 1 to 8 are members of this group async interface. ! -- If you want, for example, only 4 modems for incoming and the rest ! -- for outgoing then configure the group range for any set of ! -- four consecutive modems in the module. ! -- Note: this range must be included within the line configuration below.

!
ip local pool DIALIN 10.1.1.1 10.1.1.10

! -- IP address pool for dialin clients.

ip classless
ip route 0.0.0.0 0.0.0.0 20.20.20.100
ip http server
ip pim bidir-enable
!
!
dialer-list 1 protocol ip permit

! -- Specifies all IP traffic as interesting. Interesting traffic ! -- specifies the packets that should reset the idle timer. ! -- This is applied to interface Group-Async 1 using dialer-group 1. ! -- Note: The specified dialer-list number must be the same as the ! -- dialer-group number; in this example, defined to be "1".

!
line con 0
password abc
line 1 8

! -- TTY lines for the NM-8AM Modems. ! -- Note the line number range matched the group-range ! -- under the group-async config.

modem InOut

! -- Support incoming and outgoing modem calls.

transport input all
autoselect ppp

! -- Launch PPP if PPP packets are detected. This is used in conjunction ! -- with async mode interactive under the group-async configuration.

flowcontrol hardware
line aux 0
line vty 0 4
login
!
!
end

注：在此3600路由器机箱中，NM-8AM卡安装在插槽0中。我们可以参阅Cisco 3600系列路由器中异步线路的编号方式，以确定插槽1保留了线路1至32。要确定应配置哪个特定异步接口，请使用show line命令查找可用的线路。在此配置中，请注意，该范围内仅有1到8行（八行）可用。要配置卡中的第一个调制解调器，请配置线路1（和接口异步1），而最后一个调制解调器是线路8 /接口异步8。

验证

本部分所提供的信息可用于确认您的配置是否正常工作。

命令输出解释程序工具（仅限注册用户）支持某些 show 命令，使用此工具可以查看对 show 命令输出的分析。

show diag — 要显示路由器的硬件信息，请在特权EXEC模式下使用show diag命令。在线路号或接口号取决于插入NM或WIC的插槽的模块化路由器中尤其有用。
show modem version — 此命令对于验证在调制解调器固件升级之前或之后系统上运行的调制解调器固件的版本非常有用。

故障排除

本部分提供的信息可用于对配置进行故障排除。

故障排除命令

命令输出解释程序工具（仅限注册用户）支持某些 show 命令，使用此工具可以查看对 show 命令输出的分析。

注意：在发出debug命令之前，请参阅有关Debug命令的重要信息。

debug modem — 显示路由器上的调制解调器线路活动、调制解调器控制和进程激活消息。
debug ppp negotiation — 在协商PPP组件(包括链路控制协议(LCP)、身份验证和网络控制协议(NCP))时显示有关PPP流量和交换的信息。成功的PPP协商首先打开LCP状态，然后进行身份验证，最后协商NCP。

调试输出示例

cisco3640#show debug
 General OS:
   Modem control/process activation debugging is on
 PPP:
   PPP protocol negotiation debugging is on
 
 cisco3640#
 *Mar  1 00:14:05.479: CSM_ANALOG_MODEM_IDLE: 
MODEM_STARTING_CONNECT at slot 0, port 0 

! -- Incoming call

 *Mar  1 00:14:05.479: Modem 0/0 Mcom: in modem state 'Dialing/Answering'

! -- Modem answers the call

 *Mar  1 00:14:06.131: ANALOG_CONNECT_INITIATED: 
MODEM_ANALOG_CALL_IN at slot 0, port 0
 *Mar  1 00:14:06.131: Modem 0/0 Mcom: in modem state 'Incoming ring'
 *Mar  1 00:14:08.403: Modem 0/0 Mcom: in modem state 'Waiting for Carrier'
 *Mar  1 00:14:19.807: Modem 0/0 Mcom: in modem state 'Connected'

! -- Modem trainup complete. Note the 10+ seconds the modems took to trainup

 *Mar  1 00:14:20.363: ANALOG_CONNECT_INITIATED: 
MODEM_CONNECTED at slot 0, port 0
 *Mar  1 00:14:20.363: Call Handle failed for Modem 0/0
 *Mar  1 00:14:20.363: Modem 0/0 Mcom: 
CONNECT at 26400/26400(Tx/Rx), V34, LAPM, V42bis, Answer

! -- Modem speeds, modulation, framing protocol,compression for this ! -- connection are displayed

 *Mar  1 00:14:21.187: TTY1: DSR came up
 *Mar  1 00:14:21.187: tty1: Modem: IDLE->(unknown)
 *Mar  1 00:14:21.187: TTY1: Autoselect started
 *Mar  1 00:14:21.187: TTY1: create timer type 0, 120 seconds
 *Mar  1 00:14:22.559: TTY1: Autoselect sample 7E
 *Mar  1 00:14:22.559: TTY1: Autoselect sample 7EFF
 *Mar  1 00:14:22.559: TTY1: Autoselect sample 7EFF7D
 *Mar  1 00:14:22.559: TTY1: Autoselect sample 7EFF7D23

! -- The router has received a PPP packet. It will now start PPP

 *Mar  1 00:14:22.559: TTY1 Autoselect cmd:  ppp negotiate

! -- The router kicks off ppp since the command autoselect ppp is ! -- in the line configuration

 *Mar  1 00:14:22.559: TTY1: destroy timer type 0
 *Mar  1 00:14:22.563: TTY1: EXEC creation
 *Mar  1 00:14:22.563: TTY1: create timer type 1, 600 seconds
 *Mar  1 00:14:22.563: TTY1: destroy timer type 1
 *Mar  1 00:14:22.563: TTY1: no timer type 0 to destroy
 *Mar  1 00:14:22.567: As1 IPCP: Install route to 10.1.1.2
 *Mar  1 00:14:22.567: As1 IPCP: Add link info for cef entry 10.1.1.2
 00:14:24: %LINK-3-UPDOWN: Interface Async1, changed state to up
 *Mar  1 00:14:24.563: As1 PPP: Treating connection as a callin
 *Mar  1 00:14:24.563: As1 PPP: Phase is ESTABLISHING, Passive Open
 *Mar  1 00:14:24.563: As1 LCP: State is Listen

! -- PPP LCP negotiation begins

 *Mar  1 00:14:25.559: As1 LCP: I CONFREQ [Listen] id 2 len 50
 *Mar  1 00:14:25.559: As1 LCP:    ACCM 0x00000000 (0x020600000000)
 *Mar  1 00:14:25.559: As1 LCP:    MagicNumber 0x7E346973 (0x05067E346973)
 *Mar  1 00:14:25.559: As1 LCP:    PFC (0x0702)
 *Mar  1 00:14:25.559: As1 LCP:    ACFC (0x0802)
 *Mar  1 00:14:25.559: As1 LCP:    Callback 6  (0x0D0306)
 *Mar  1 00:14:25.559: As1 LCP:    MRRU 1614 (0x1104064E)
 *Mar  1 00:14:25.559: As1 LCP:    EndpointDisc 1 Local
 *Mar  1 00:14:25.559: As1 LCP:     (0x1317012531B2C62B044C08A4E6C70075)
 *Mar  1 00:14:25.563: As1 LCP:     (0x69040F00000000)
 *Mar  1 00:14:25.563: Modem 0/0 Mcom: switching to PPP mode
 *Mar  1 00:14:25.563: Modem 0/0 Mcom: PPP escape map: Tx map = FFFFFFFF, 
 Rx map = 0
 *Mar  1 00:14:25.563: As1 LCP: O CONFREQ [Listen] id 3 len 25
 *Mar  1 00:14:25.563: As1 LCP:    ACCM 0x000A0000 (0x0206000A0000)
 *Mar  1 00:14:25.563: As1 LCP:    AuthProto CHAP (0x0305C22305)
 *Mar  1 00:14:25.563: As1 LCP:    MagicNumber 0x014F4F18 (0x0506014F4F18)
 *Mar  1 00:14:25.563: As1 LCP:    PFC (0x0702)
 *Mar  1 00:14:25.563: As1 LCP:    ACFC (0x0802)
 *Mar  1 00:14:25.563: As1 LCP: O CONFREJ [Listen] id 2 len 11
 *Mar  1 00:14:25.563: As1 LCP:    Callback 6  (0x0D0306)
 *Mar  1 00:14:25.563: As1 LCP:    MRRU 1614 (0x1104064E)
 *Mar  1 00:14:25.731: As1 LCP: I CONFACK [REQsent] id 3 len 25
 *Mar  1 00:14:25.731: As1 LCP:    ACCM 0x000A0000 (0x0206000A0000)
 *Mar  1 00:14:25.731: As1 LCP:    AuthProto CHAP (0x0305C22305)
 *Mar  1 00:14:25.731: As1 LCP:    MagicNumber 0x014F4F18 (0x0506014F4F18)
 *Mar  1 00:14:25.731: As1 LCP:    PFC (0x0702)
 *Mar  1 00:14:25.731: As1 LCP:    ACFC (0x0802)
 *Mar  1 00:14:27.551: As1 LCP: TIMEout: State ACKrcvd
 *Mar  1 00:14:27.551: As1 LCP: O CONFREQ [ACKrcvd] id 4 len 25
 *Mar  1 00:14:27.551: As1 LCP:    ACCM 0x000A0000 (0x0206000A0000)
 *Mar  1 00:14:27.551: As1 LCP:    AuthProto CHAP (0x0305C22305)
 *Mar  1 00:14:27.551: As1 LCP:    MagicNumber 0x014F4F18 (0x0506014F4F18)
 *Mar  1 00:14:27.551: As1 LCP:    PFC (0x0702)
 *Mar  1 00:14:27.551: As1 LCP:    ACFC (0x0802)
 *Mar  1 00:14:27.683: As1 LCP: I CONFREQ [REQsent] id 3 len 43
 *Mar  1 00:14:27.683: As1 LCP:    ACCM 0x00000000 (0x020600000000)
 *Mar  1 00:14:27.683: As1 LCP:    MagicNumber 0x7E346973 (0x05067E346973)
 *Mar  1 00:14:27.687: As1 LCP:    PFC (0x0702)
 *Mar  1 00:14:27.687: As1 LCP:    ACFC (0x0802)
 *Mar  1 00:14:27.687: As1 LCP:    EndpointDisc 1 Local
 *Mar  1 00:14:27.687: As1 LCP:     (0x1317012531B2C62B044C08A4E6C70075)
 *Mar  1 00:14:27.687: As1 LCP:     (0x69040F00000000)
 *Mar  1 00:14:27.687: As1 LCP: O CONFACK [REQsent] id 3 len 43
 *Mar  1 00:14:27.687: As1 LCP:    ACCM 0x00000000 (0x020600000000)
 *Mar  1 00:14:27.687: As1 LCP:    MagicNumber 0x7E346973 (0x05067E346973)
 *Mar  1 00:14:27.687: As1 LCP:    PFC (0x0702)
 *Mar  1 00:14:27.687: As1 LCP:    ACFC (0x0802)
 *Mar  1 00:14:27.687: As1 LCP:    EndpointDisc 1 Local
 *Mar  1 00:14:27.687: As1 LCP:     (0x1317012531B2C62B044C08A4E6C70075)
 *Mar  1 00:14:27.687: As1 LCP:     (0x69040F00000000)
 *Mar  1 00:14:27.691: As1 LCP: I CONFACK [ACKsent] id 4 len 25
 *Mar  1 00:14:27.691: As1 LCP:    ACCM 0x000A0000 (0x0206000A0000)
 *Mar  1 00:14:27.691: As1 LCP:    AuthProto CHAP (0x0305C22305)
 *Mar  1 00:14:27.691: As1 LCP:    MagicNumber 0x014F4F18 (0x0506014F4F18)
 *Mar  1 00:14:27.691: As1 LCP:    PFC (0x0702)
 *Mar  1 00:14:27.691: As1 LCP:    ACFC (0x0802)
 *Mar  1 00:14:27.691: As1 LCP: State is Open

! -- LCP negotiation begins

 *Mar  1 00:14:27.691: Modem 0/0 Mcom: PPP escape map: Tx map = 0, Rx map = 0
 *Mar  1 00:14:27.691: As1 PPP: Phase is AUTHENTICATING, by this end
 *Mar  1 00:14:27.691: As1 CHAP: O CHALLENGE id 2 len 30 from "cisco3640"
 *Mar  1 00:14:27.851: As1 LCP: I IDENTIFY [Open] id 4 len 18 magic 0x7E346973 
MSRASV5.00
 *Mar  1 00:14:27.863: As1 LCP: I IDENTIFY [Open] id 5 len 28 magic 0x7E346973 
MSRAS-W2K
 *Mar  1 00:14:27.879: As1 CHAP: I RESPONSE id 2 len 24 from "mak"
 *Mar  1 00:14:27.883: As1 CHAP: O SUCCESS id 2 len 4

! -- CHAP is successful

 *Mar  1 00:14:27.883: As1 PPP: Phase is UP
 *Mar  1 00:14:27.883: As1 IPCP: O CONFREQ [Closed] id 2 len 10
 *Mar  1 00:14:27.883: As1 IPCP:    Address 1.1.1.1 (0x030601010101)
 *Mar  1 00:14:28.019: As1 CCP: I CONFREQ [Not negotiated] id 6 len 10
 *Mar  1 00:14:28.019: As1 CCP:    MS-PPC supported bits 0x00000001 
(0x120600000001)
 *Mar  1 00:14:28.019: As1 LCP: O PROTREJ [Open] id 5 len 16 protocol CCP 
 (0x80FD0106000A120600000001)
 *Mar  1 00:14:28.035: As1 IPCP: I CONFREQ [REQsent] id 7 len 40
 *Mar  1 00:14:28.035: As1 IPCP:    CompressType VJ 15 slots CompressSlotID 
(0x0206002D0F01)
 *Mar  1 00:14:28.035: As1 IPCP:    Address 0.0.0.0 (0x030600000000)
 *Mar  1 00:14:28.035: As1 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
 *Mar  1 00:14:28.035: As1 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
 *Mar  1 00:14:28.035: As1 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
 *Mar  1 00:14:28.035: As1 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
 *Mar  1 00:14:28.035: As1 IPCP: O CONFREJ [REQsent] id 7 len 22
 *Mar  1 00:14:28.035: As1 IPCP:    CompressType VJ 15 slots CompressSlotID 
 (0x0206002D0F01)
 *Mar  1 00:14:28.035: As1 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
 *Mar  1 00:14:28.039: As1 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
 *Mar  1 00:14:28.039: As1 IPCP: I CONFACK [REQsent] id 2 len 10
 *Mar  1 00:14:28.043: As1 IPCP:    Address 1.1.1.1 (0x030601010101)
 *Mar  1 00:14:28.175: As1 IPCP: I CONFREQ [ACKrcvd] id 8 len 22
 *Mar  1 00:14:28.175: As1 IPCP:    Address 0.0.0.0 (0x030600000000)
 *Mar  1 00:14:28.175: As1 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
 *Mar  1 00:14:28.175: As1 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
 *Mar  1 00:14:28.175: As1 IPCP: O CONFNAK [ACKrcvd] id 8 len 22
 *Mar  1 00:14:28.175: As1 IPCP:    Address 10.1.1.2 (0x03060A010102)
 *Mar  1 00:14:28.175: As1 IPCP:    PrimaryDNS 5.5.5.1 (0x810605050501)
 *Mar  1 00:14:28.175: As1 IPCP:    SecondaryDNS 5.5.5.2 (0x830605050502)
 *Mar  1 00:14:28.311: As1 IPCP: I CONFREQ [ACKrcvd] id 9 len 22
 *Mar  1 00:14:28.311: As1 IPCP:    Address 10.1.1.2 (0x03060A010102)
 *Mar  1 00:14:28.311: As1 IPCP:    PrimaryDNS 5.5.5.1 (0x810605050501)
 *Mar  1 00:14:28.311: As1 IPCP:    SecondaryDNS 5.5.5.2 (0x830605050502)
 *Mar  1 00:14:28.311: As1 IPCP: O CONFACK [ACKrcvd] id 9 len 22
 *Mar  1 00:14:28.311: As1 IPCP:    Address 10.1.1.2 (0x03060A010102)
 *Mar  1 00:14:28.311: As1 IPCP:    PrimaryDNS 5.5.5.1 (0x810605050501)
 *Mar  1 00:14:28.311: As1 IPCP:    SecondaryDNS 5.5.5.2 (0x830605050502)
 *Mar  1 00:14:28.311: As1 IPCP: State is Open

! -- IPCP negotiation is complete

 *Mar  1 00:14:28.311: As1 IPCP: Add link info for cef entry 10.1.1.2
 00:14:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface Async1, 
changed state to up

用 NM-8AM 或 NM-16AM 模拟调制解调器模块配置拨入

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故障排除命令

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