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如何解决NASI防火墙，ADSL无法连接拨号问题

1.请先确认您ADSL帐号密码是否正确，可以到相关的ISP网站核对。
  深圳用户可以到  http://selfservice.gddc.com.cn/index.jsp登陆修改密码

2.确认好ADSL帐号密码后，您可以手动点击连接来拨号，并配合NASI防火墙的日志分析错误原因

PPPoE拔号联通过程日志
Jan 29 15:40:27 2005 Firewall pppd[5835]: Warning: couldn't open ppp database /var/run/pppd.tdb
Jan 29 15:40:28 2005 Firewall pppd[5836]: pppd 2.4.1 started by root, uid 0
Jan 29 15:40:28 2005 Firewall pppd[5836]: tdb_store failed: Invalid tdb context
Jan 29 15:40:28 2005 Firewall pppd[5836]: Sending PADI (发送PPPoE联机请求，防火墙设备的WAN口已进入正常拔号状态)
Jan 29 15:40:28 2005 Firewall pppd[5836]: HOST_UNIQ successful match
Jan 29 15:40:28 2005 Firewall pppd[5836]: HOST_UNIQ successful match
Jan 29 15:40:28 2005 Firewall pppd[5836]: Got connection: 567
Jan 29 15:40:28 2005 Firewall pppd[5836]: pads
Jan 29 15:40:28 2005 Firewall pppd[5836]: Connecting PPPoE socket: 00:90:1a:10:16:33 0567 eth1 0x53680 (找到PPPoE服务器，说明防火墙设备到ISP服务商的物理线路连接是正常的)
Jan 29 15:40:28 2005 Firewall pppd[5836]: using channel 5
Jan 29 15:40:28 2005 Firewall pppd[5836]: Couldn't allocate PPP unit -1073449922 as it is already in use
Jan 29 15:40:28 2005 Firewall pppd[5836]: Using interface ppp0
Jan 29 15:40:28 2005 Firewall pppd[5836]: Connect: ppp0 <--> eth1
Jan 29 15:40:28 2005 Firewall pppd[5836]: PPPoE : Couldn't increase MTU to 1500
Jan 29 15:40:28 2005 Firewall pppd[5836]: Couldn't increase MRU to 1500
Jan 29 15:40:28 2005 Firewall pppd[5836]: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
Jan 29 15:40:28 2005 Firewall pppd[5836]: lcp_reqci: returning CONFACK.
Jan 29 15:40:28 2005 Firewall pppd[5836]: Untimeout 0x11720:0x4fc10.
Jan 29 15:40:28 2005 Firewall pppd[5836]: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
Jan 29 15:40:28 2005 Firewall pppd[5836]: Untimeout 0x11720:0x4fe50.
Jan 29 15:40:28 2005 Firewall pppd[5836]: ipcp: returning Configure-ACK
Jan 29 15:40:28 2005 Firewall pppd[5836]: Untimeout 0x11720:0x4fe50.
Jan 29 15:40:28 2005 Firewall pppd[5836]: ipcp: up
Jan 29 15:40:28 2005 Firewall pppd[5836]: local IP address 219.134.4.67
Jan 29 15:40:28 2005 Firewall pppd[5836]: remote IP address 218.17.65.1
Jan 29 15:40:28 2005 Firewall pppd[5836]: primary DNS address 202.96.134.133
Jan 29 15:40:28 2005 Firewall pppd[5836]: secondary DNS address 202.96.128.166
(PPPoE拔通,设备取到IP和DNS，防火墙设备已成功拔号，如果您还是不能上网请检查您的PC的网关（192.168.1.1）和DNS（202.96.134.166，202.96.128.68）设置)
Jan 29 15:40:28 2005 Firewall pppd[5836]: Script /etc/ppp/ip-up started (pid 5845)

PPPoE拔号用户名或密码错误过程日志
Jan 29 15:49:08 2005 Firewall pppd[8242]: Warning: couldn't open ppp database /var/run/pppd.tdb
Jan 29 15:49:08 2005 Firewall pppd[8243]: pppd 2.4.1 started by root, uid 0
Jan 29 15:49:08 2005 Firewall pppd[8243]: tdb_store failed: Invalid tdb context
Jan 29 15:49:08 2005 Firewall pppd[8243]: Sending PADI (发送PPPoE联机请求，防火墙设备的WAN口已进入正常拔号状态)
Jan 29 15:49:08 2005 Firewall pppd[8243]: HOST_UNIQ successful match
Jan 29 15:49:09 2005 Firewall pppd[8243]: HOST_UNIQ successful match
Jan 29 15:49:09 2005 Firewall pppd[8243]: Got connection: 781
Jan 29 15:49:09 2005 Firewall pppd[8243]: pads
Jan 29 15:49:09 2005 Firewall pppd[8243]: Connecting PPPoE socket: 00:90:1a:10:16:33 0781 eth1 0x53680
找到PPPoE服务器，说明防火墙设备到ISP服务商的物理线路连接是正常的)
Jan 29 15:49:09 2005 Firewall pppd[8243]: using channel 15
Jan 29 15:49:09 2005 Firewall pppd[8243]: Couldn't allocate PPP unit -1073449922 as it is already in use
Jan 29 15:49:09 2005 Firewall pppd[8243]: Using interface ppp0
Jan 29 15:49:09 2005 Firewall pppd[8243]: Connect: ppp0 <--> eth1
Jan 29 15:49:09 2005 Firewall pppd[8243]: PPPoE : Couldn't increase MTU to 1500
Jan 29 15:49:09 2005 Firewall pppd[8243]: Couldn't increase MRU to 1500
Jan 29 15:49:09 2005 Firewall pppd[8243]: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
Jan 29 15:49:12 2005 Firewall pppd[8243]: lcp_reqci: returning CONFACK.
Jan 29 15:49:12 2005 Firewall pppd[8243]: Untimeout 0x11720:0x4fc10.
Jan 29 15:49:12 2005 Firewall pppd[8243]: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
Jan 29 15:49:13 2005 Firewall pppd[8243]: Remote message: 8 : Password error (BBAuthServer_B51,Password)
(密码或用户错误失败)
Jan 29 15:49:13 2005 Firewall pppd[8243]: PAP authentication failed
(认证失败,说明PPPoE的账号或密码不正确，请确认ISP服务商给的PPPoE用户名或密码，也可以打电话到电信的客服热线:10000号查询账号和密码。
Jan 29 15:49:13 2005 Firewall pppd[8243]: Untimeout 0x151a4:0x4fc10.
Jan 29 15:49:13 2005 Firewall pppd[8243]: PPPoE : Couldn't increase MTU to 1500
Jan 29 15:49:13 2005 Firewall pppd[8243]: Couldn't increase MRU to 1500
Jan 29 15:49:14 2005 Firewall pppd[8243]: Untimeout 0x11720:0x4fc10.
Jan 29 15:49:14 2005 Firewall pppd[8243]: Connection terminated.(连接超时)
Jan 29 15:49:14 2005 Firewall pppd[8243]: Doing disconnect
Jan 29 15:49:14 2005 Firewall pppd[8243]: Exit.

PPPoE拔号MODEM有问题时的过程日志
Jan 29 15:51:52 2005 Firewall pppd[8834]: Warning: couldn't open ppp database /var/run/pppd.tdb
Jan 29 15:51:52 2005 Firewall pppd[8835]: pppd 2.4.1 started by root, uid 0
Jan 29 15:51:52 2005 Firewall pppd[8835]: tdb_store failed: Invalid tdb context
Jan 29 15:51:52 2005 Firewall pppd[8835]: Sending PADI
Jan 29 15:51:54 2005 Firewall pppd[8835]: Re-send
Jan 29 15:51:58 2005 Firewall pppd[8835]: Re-send
(如果MODEM与防火墙的网线没接好,或MODEM有问题,PPPoE会一直发联机请求,但没有回应,请检查防火墙到MODEM的WAN物理线路连接是否正常，WAN口灯是否亮；查看MODEM的状态灯是否在闪（一般是ADSL的ACT灯），确认PPPoE线路是否有数据信号过来；可试试重启MODEM再查看各个设备的状态灯；也可用单PC拔号上网检查，确认线路是否正常。)
特别注意：
很多用户将正在使用中的ADSL线路直接拔掉，这样会导致ADSL挂起，然后不停Re-send，解决办法是将ADSL Modem和防火墙都关闭，先开防火墙，再开ADSL Modem,配合LOG查找原因！
如果仔细核对以上信息后，问题依然无法解决，请联系我们技术部。