PPPoE连接：“通用错误”RP-PPPoE：subprocesspppd进程终止“

我在Virtual Box上安装了2台Ubuntu 64位虚拟机。它们的名称和IP地址如下。我试图build立两台机器之间的PPPoE连接。

nas 192.168.129.130 (This machine runs the PPPoE server) home 192.168.129.37 (This machine runs the PPPoE client) 

下面显示了nas（networking访问服务器）上的相关configuration文件。

在/ etc / ppp / pppoe的服务器选项

 require-chap login lcp-echo-interval 10 lcp-echo-failure 2 defaultroute noipdefault 

在/ etc / ppp / chap-secrets中

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 #client server secret IP addresses home * "godfather" * nas * "godfather" * 

的/ etc / PPP / ipaddress_pool

 192.168.129.20-40 

的/ etc / PPP / pppoe_start

 PPPOE_IFACE="eth0" PPPOE_IFACE_ADDR="192.168.129.31" #Start PPPoE Server sleep 5 pppoe-server -C isp -L $PPPOE_IFACE_ADDR -p /etc/ppp/ipaddress_pool -I $PPPOE_IFACE -m 1412 

的/ etc / PPP / pppoe_stop

 killall pppoe-server 

下面显示了家中的相关configuration文件（客户端）。

的/ etc / PPP / chap_secrets

 # Secrets for authentication using CHAP # client server secret IP addresses nas * "godfather" * home * "godfather" * 

的/ etc / PPP /同位体/ myisp

 plugin rp-pppoe.so eth0 user root 

我使用以下命令启动PPPoE服务器。

 sudo /etc/ppp/pppoe_start 

我使用以下命令启动客户端

 sudo pppd call myisp 

我在eth0上运行tcpdump来查看PADI，PADO，PADR，PADS和PADT。在nas服务器上运行的tcpdump的输出如下所示。

sudo tcpdump -i eth0 -n ether proto 0x8863'||' ether proto 0x8864 [sudo] karthik的密码：

 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 12:47:25.173507 PPPoE PADI [Service-Name] [Host-Uniq 0xCF0A0000] 12:47:25.173609 PPPoE PADO [AC-Name "nzhmlbld06l"] [Service-Name] [AC-Cookie 0x18F0FDB21859639108D61444C8A611F4D2080000] [Host-Uniq 0xCF0A0000] 12:47:25.173661 PPPoE PADO [AC-Name "isp"] [Service-Name] [AC-Cookie 0xF07AE7E13B3BDFACCCE03C14A0A60C7D49090000] [Host-Uniq 0xCF0A0000] 12:47:25.173777 PPPoE PADR [Service-Name] [Host-Uniq 0xCF0A0000] [AC-Cookie 0x18F0FDB21859639108D61444C8A611F4D2080000] 12:47:25.174239 PPPoE PADS [ses 0xa] [Service-Name] [Host-Uniq 0xCF0A0000] 12:47:25.174929 PPPoE [ses 0xa] LCP, Conf-Request (0x01), id 1, length 21 12:47:26.180431 PPPoE [ses 0xa] LCP, Conf-Request (0x01), id 1, length 16 12:47:26.180676 PPPoE [ses 0xa] LCP, Conf-Ack (0x02), id 1, length 16 12:47:28.177393 PPPoE [ses 0xa] LCP, Conf-Request (0x01), id 1, length 21 12:47:28.179020 PPPoE [ses 0xa] LCP, Conf-Reject (0x04), id 1, length 11 12:47:28.179295 PPPoE [ses 0xa] LCP, Conf-Request (0x01), id 2, length 16 12:47:28.181036 PPPoE [ses 0xa] LCP, Conf-Ack (0x02), id 2, length 16 12:47:28.181045 PPPoE [ses 0xa] LCP, Echo-Request (0x09), id 0, length 10 12:47:28.181464 PPPoE [ses 0xa] LCP, Echo-Request (0x09), id 0, length 10 12:47:28.181638 PPPoE [ses 0xa] LCP, Term-Request (0x05), id 3, length 34 12:47:28.182984 PPPoE [ses 0xa] LCP, Echo-Reply (0x0a), id 0, length 10 12:47:28.182992 PPPoE [ses 0xa] LCP, Term-Ack (0x06), id 3, length 6 12:47:31.217784 PPPoE PADT [ses 0xa] [Generic-Error "RP-PPPoE: Child pppd process terminated"] 

我无法理解为什么“通用错误”RP-PPPoE：subprocesspppd进程终止“错误消息正在打印。我做了configuration错误吗？任何build议或指针将不胜感激。

我已经添加了客户端和服务器的debugging转储，这是我在客户端上的/ var / log / syslog。

 Aug 19 08:42:22 home pppd[2183]: Plugin rp-pppoe.so loaded. Aug 19 08:42:22 home pppd[2183]: pppd options in effect: Aug 19 08:42:22 home pppd[2183]: debug#011#011# (from /etc/ppp/peers/myisp) Aug 19 08:42:22 home pppd[2183]: dump#011#011# (from /etc/ppp/peers/myisp) Aug 19 08:42:22 home pppd[2183]: plugin rp-pppoe.so#011#011# (from /etc/ppp/peers/myisp) Aug 19 08:42:22 home pppd[2183]: +chap#011#011# (from /etc/ppp/options) Aug 19 08:42:22 home pppd[2183]: user root#011#011# (from /etc/ppp/peers/myisp) Aug 19 08:42:22 home pppd[2183]: eth0#011#011# (from /etc/ppp/peers/myisp) Aug 19 08:42:22 home pppd[2183]: eth0#011#011# (from /etc/ppp/peers/myisp) Aug 19 08:42:22 home pppd[2183]: asyncmap 0#011#011# (from /etc/ppp/options) Aug 19 08:42:22 home pppd[2183]: lcp-echo-failure 4#011#011# (from /etc/ppp/options) Aug 19 08:42:22 home pppd[2183]: lcp-echo-interval 30#011#011# (from /etc/ppp/options) Aug 19 08:42:22 home pppd[2183]: hide-password#011#011# (from /etc/ppp/options) Aug 19 08:42:22 home pppd[2183]: noipx#011#011# (from /etc/ppp/options) Aug 19 08:42:22 home pppd[2184]: pppd 2.4.5 started by root, uid 0 Aug 19 08:42:22 home pppd[2184]: Send PPPOE Discovery V1T1 PADI session 0x0 length 12 Aug 19 08:42:22 home pppd[2184]: dst ff:ff:ff:ff:ff:ff src 8:0:27:21:a9:d Aug 19 08:42:22 home pppd[2184]: [service-name] [host-uniq 88 08 00 00] Aug 19 08:42:22 home pppd[2184]: Recv PPPOE Discovery V1T1 PADO session 0x0 length 51 Aug 19 08:42:22 home pppd[2184]: dst 8:0:27:21:a9:d src c8:60:0:ca:eb:83 Aug 19 08:42:22 home pppd[2184]: [AC-name nzhmlbld06l] [service-name] [AC-cookie 18 f0 fd b2 18 59 63 91 08 d6 14 44 c8 a6 11 f4 d2 08 00 00] [host-uniq 88 08 00 00] Aug 19 08:42:22 home pppd[2184]: Send PPPOE Discovery V1T1 PADR session 0x0 length 36 Aug 19 08:42:22 home pppd[2184]: dst c8:60:0:ca:eb:83 src 8:0:27:21:a9:d Aug 19 08:42:22 home pppd[2184]: [service-name] [host-uniq 88 08 00 00] [AC-cookie 18 f0 fd b2 18 59 63 91 08 d6 14 44 c8 a6 11 f4 d2 08 00 00] Aug 19 08:42:22 home pppd[2184]: Recv PPPOE Discovery V1T1 PADO session 0x0 length 43 Aug 19 08:42:22 home pppd[2184]: dst 8:0:27:21:a9:d src 8:0:27:50:1d:d3 Aug 19 08:42:22 home pppd[2184]: [AC-name isp] [service-name] [AC-cookie ff 29 7b e4 ad 78 bd 39 db 78 61 ff f7 92 ff 0c f2 0a 00 00] [host-uniq 88 08 00 00] Aug 19 08:42:22 home pppd[2184]: Recv PPPOE Discovery V1T1 PADS session 0x15 length 12 Aug 19 08:42:22 home pppd[2184]: dst 8:0:27:21:a9:d src c8:60:0:ca:eb:83 Aug 19 08:42:22 home pppd[2184]: [service-name] [host-uniq 88 08 00 00] Aug 19 08:42:22 home pppd[2184]: PADS: Service-Name: '' Aug 19 08:42:22 home pppd[2184]: PPP session is 21 Aug 19 08:42:22 home pppd[2184]: Connected to c8:60:00:ca:eb:83 via interface eth0 Aug 19 08:42:22 home pppd[2184]: using channel 4 Aug 19 08:42:22 home pppd[2184]: Using interface ppp0 Aug 19 08:42:22 home pppd[2184]: Connect: ppp0 <--> eth0 Aug 19 08:42:22 home pppd[2184]: sent [LCP ConfReq id=0x1 <mru 1492> <auth chap MD5> <magic 0x936c3d3f>] Aug 19 08:42:22 home NetworkManager[521]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0) Aug 19 08:42:22 home NetworkManager[521]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found. Aug 19 08:42:23 home pppd[2184]: rcvd [LCP ConfReq id=0x1 <auth pap> <magic 0x4c48e2bb>] Aug 19 08:42:23 home pppd[2184]: sent [LCP ConfAck id=0x1 <auth pap> <magic 0x4c48e2bb>] Aug 19 08:42:25 home pppd[2184]: sent [LCP ConfReq id=0x1 <mru 1492> <auth chap MD5> <magic 0x936c3d3f>] Aug 19 08:42:25 home pppd[2184]: rcvd [LCP ConfRej id=0x1 <auth chap MD5>] Aug 19 08:42:25 home pppd[2184]: sent [LCP ConfReq id=0x2 <mru 1492> <magic 0x936c3d3f>] Aug 19 08:42:25 home pppd[2184]: rcvd [LCP ConfAck id=0x2 <mru 1492> <magic 0x936c3d3f>] Aug 19 08:42:25 home pppd[2184]: sent [LCP EchoReq id=0x0 magic=0x936c3d3f] Aug 19 08:42:25 home pppd[2184]: peer refused to authenticate: terminating link Aug 19 08:42:25 home pppd[2184]: sent [LCP TermReq id=0x3 "peer refused to authenticate"] Aug 19 08:42:25 home pppd[2184]: rcvd [LCP EchoReq id=0x0 magic=0x4c48e2bb] Aug 19 08:42:25 home pppd[2184]: rcvd [LCP EchoRep id=0x0 magic=0x4c48e2bb] Aug 19 08:42:25 home pppd[2184]: rcvd [LCP TermAck id=0x3] Aug 19 08:42:25 home pppd[2184]: Connection terminated. Aug 19 08:42:25 home avahi-daemon[523]: Withdrawing workstation service for ppp0. Aug 19 08:42:25 home NetworkManager[521]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0) Aug 19 08:42:25 home pppd[2184]: Exit. 

我现在修改了我的/ etc / ppp / pap-secrets文件，如下所示。

 # INBOUND connections # Every regular user can use PPP and has to use passwords from /etc/passwd karthik * "godfather" * #karthik * "godfather" * #home * "godfather" * # UserIDs that cannot use PPP at all. Check your /etc/passwd and add any # other accounts that should not be able to use pppd! guest hostname "*" - master hostname "*" - #root hostname "*" - support hostname "*" - stats hostname "*" - 

服务器上的/ etc / ppp / pap-secrets文件如下所示。

 # OUTBOUND connections # Here you should add your userid password to connect to your providers via # PAP. The * means that the password is to be used for ANY host you connect # to. Thus you do not have to worry about the foreign machine name. Just # replace password with your password. # If you have different providers with different passwords then you better # remove the following * "godfather" 

我也已经将我的/ etc / ppp / peers / myisp中的用户从根目录更改为karthik.从debugging消息（/ var / log / syslog）中，我在客户端上获得了以下内容。

 Aug 19 11:24:55 home pppd[2920]: Plugin rp-pppoe.so loaded. Aug 19 11:24:55 home pppd[2920]: pppd options in effect: Aug 19 11:24:55 home pppd[2920]: debug#011#011# (from /etc/ppp/peers/myisp) Aug 19 11:24:55 home pppd[2920]: dump#011#011# (from /etc/ppp/peers/myisp) Aug 19 11:24:55 home pppd[2920]: plugin rp-pppoe.so#011#011# (from /etc/ppp/peers/myisp) Aug 19 11:24:55 home pppd[2920]: noauth#011#011# (from /etc/ppp/peers/myisp) Aug 19 11:24:55 home pppd[2920]: user karthik#011#011# (from /etc/ppp/peers/myisp) Aug 19 11:24:55 home pppd[2920]: eth0#011#011# (from /etc/ppp/peers/myisp) Aug 19 11:24:55 home pppd[2920]: eth0#011#011# (from /etc/ppp/peers/myisp) Aug 19 11:24:55 home pppd[2920]: asyncmap 0#011#011# (from /etc/ppp/options) Aug 19 11:24:55 home pppd[2920]: lcp-echo-failure 4#011#011# (from /etc/ppp/options) Aug 19 11:24:55 home pppd[2920]: lcp-echo-interval 30#011#011# (from /etc/ppp/options) Aug 19 11:24:55 home pppd[2920]: show-password#011#011# (from /etc/ppp/options) Aug 19 11:24:55 home pppd[2920]: noipx#011#011# (from /etc/ppp/options) Aug 19 11:24:55 home pppd[2921]: pppd 2.4.5 started by root, uid 0 Aug 19 11:24:55 home pppd[2921]: Send PPPOE Discovery V1T1 PADI session 0x0 length 12 Aug 19 11:24:55 home pppd[2921]: dst ff:ff:ff:ff:ff:ff src 8:0:27:21:a9:d Aug 19 11:24:55 home pppd[2921]: [service-name] [host-uniq 69 0b 00 00] Aug 19 11:24:55 home pppd[2921]: Recv PPPOE Discovery V1T1 PADO session 0x0 length 51 Aug 19 11:24:55 home pppd[2921]: dst 8:0:27:21:a9:d src c8:60:0:ca:eb:83 Aug 19 11:24:55 home pppd[2921]: [AC-name nzhmlbld06l] [service-name] [AC-cookie 18 f0 fd b2 18 59 63 91 08 d6 14 44 c8 a6 11 f4 d2 08 00 00] [host-uniq 69 0b 00 00] Aug 19 11:24:55 home pppd[2921]: Send PPPOE Discovery V1T1 PADR session 0x0 length 36 Aug 19 11:24:55 home pppd[2921]: dst c8:60:0:ca:eb:83 src 8:0:27:21:a9:d Aug 19 11:24:55 home pppd[2921]: [service-name] [host-uniq 69 0b 00 00] [AC-cookie 18 f0 fd b2 18 59 63 91 08 d6 14 44 c8 a6 11 f4 d2 08 00 00] Aug 19 11:24:55 home pppd[2921]: Recv PPPOE Discovery V1T1 PADS session 0x12 length 12 Aug 19 11:24:55 home pppd[2921]: dst 8:0:27:21:a9:d src c8:60:0:ca:eb:83 Aug 19 11:24:55 home pppd[2921]: [service-name] [host-uniq 69 0b 00 00] Aug 19 11:24:55 home pppd[2921]: PADS: Service-Name: '' Aug 19 11:24:55 home pppd[2921]: PPP session is 18 Aug 19 11:24:55 home pppd[2921]: Connected to c8:60:00:ca:eb:83 via interface eth0 Aug 19 11:24:55 home pppd[2921]: using channel 61 Aug 19 11:24:55 home NetworkManager[626]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0) Aug 19 11:24:55 home NetworkManager[626]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found. Aug 19 11:24:55 home pppd[2921]: Using interface ppp0 Aug 19 11:24:55 home pppd[2921]: Connect: ppp0 <--> eth0 Aug 19 11:24:55 home pppd[2921]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xd1bab5a5>] Aug 19 11:24:56 home pppd[2921]: rcvd [LCP ConfReq id=0x1 <auth pap> <magic 0x7d403be7>] Aug 19 11:24:56 home pppd[2921]: sent [LCP ConfAck id=0x1 <auth pap> <magic 0x7d403be7>] Aug 19 11:24:58 home pppd[2921]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xd1bab5a5>] Aug 19 11:24:58 home pppd[2921]: rcvd [LCP ConfAck id=0x1 <mru 1492> <magic 0xd1bab5a5>] Aug 19 11:24:58 home pppd[2921]: sent [LCP EchoReq id=0x0 magic=0xd1bab5a5] Aug 19 11:24:58 home pppd[2921]: sent [PAP AuthReq id=0x1 user="karthik" password="godfather"] Aug 19 11:24:58 home pppd[2921]: rcvd [LCP EchoReq id=0x0 magic=0x7d403be7] Aug 19 11:24:58 home pppd[2921]: sent [LCP EchoRep id=0x0 magic=0xd1bab5a5] Aug 19 11:24:58 home pppd[2921]: rcvd [LCP EchoRep id=0x0 magic=0x7d403be7] Aug 19 11:24:58 home pppd[2921]: rcvd [PAP AuthNak id=0x1 "Login incorrect"] Aug 19 11:24:58 home pppd[2921]: Remote message: Login incorrect Aug 19 11:24:58 home pppd[2921]: PAP authentication failed Aug 19 11:24:58 home pppd[2921]: sent [LCP TermReq id=0x2 "Failed to authenticate ourselves to peer"] Aug 19 11:24:58 home pppd[2921]: rcvd [LCP TermReq id=0x2 "Authentication failed"] Aug 19 11:24:58 home pppd[2921]: sent [LCP TermAck id=0x2] Aug 19 11:24:58 home pppd[2921]: rcvd [LCP TermAck id=0x2] Aug 19 11:24:58 home pppd[2921]: Connection terminated. Aug 19 11:24:58 home avahi-daemon[628]: Withdrawing workstation service for ppp0. Aug 19 11:24:58 home NetworkManager[626]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0) Aug 19 11:24:58 home pppd[2921]: Exit. 

从日志看来，客户端正在向服务器发送正确的用户名和密码。但服务器是由于某种原因未能用秘密“教父”authentication用户karthik。我怀疑有一些configuration错误pap秘密文件在服务器上，但不能弄清楚什么。任何人都可以指向正确的方向？