pppoe链接出错，帮看看出错信息！谢谢！

heizi_liu

我的设备使用PPPOE链接，链接的时候出现下面的错误信息，这是为什么，帮忙分析一下大侠们！谢谢 ！

May 14 19:32:45 localhost pppd[32698]: pppd 2.4.4 started by root, uid 0
May 14 19:32:45 localhost pppd[32698]: sam: new_style_driver:1
May 14 19:32:45 localhost pppd[32698]: using channel 2
May 14 19:32:45 localhost pppd[32698]: Using interface ppp0
May 14 19:32:45 localhost pppd[32698]: Connect: ppp0 <--> /dev/ttyp0
May 14 19:32:46 localhost pppoe[459]: PPP session is 132 (0x84)
May 14 19:32:46 localhost pppoe[459]: Session 132 terminated -- received PADT from peer
May 14 19:32:46 localhost pppoe[459]: Sent PADT
May 14 19:33:16 localhost pppd[32698]: No response to PAP authenticate-requests
May 14 19:33:20 localhost dhcpd: Internet Systems Consortium DHCP Server V3.0.4
May 14 19:33:20 localhost dhcpd: Copyright 2004-2006 Internet Systems Consortium.
May 14 19:33:20 localhost dhcpd: All rights reserved.
May 14 19:33:20 localhost dhcpd: For info, please visit http://www.isc.org/sw/dhcp/
May 14 19:33:22 localhost pppd[32698]: Connection terminated.
May 14 19:33:22 localhost pppd[32698]: Modem hangup
May 14 19:33:22 localhost pppd[32698]: Exit.

heizi_liu

我分析包，原来服务器需要chap验证，我以前一直搞定pap验证，怎么去改呢！

ssffzz1

配PPPOE文件里不能配吗？

heizi_liu

哎！急了，不知道怎么配置了！

heizi_liu

这么说吧： 通信认证双方选择的认证方法可能不一样，如一方选择PAP，另一方选择CHAP，这时双方的认证协商将失败。为了避免身份认证协议过程中出现这样的失败，可以配置使用两种认证方法。当第一种认证协商失败后，可以选择尝试用另一种身份认证方法，我现在的就是发现如果不是PAP的方式就再也不会尝试CHAP，问题就出在这，不知道咋修改！

C.J

do you  use rp-pppoe server? if that you need just modify pppoe-server-options file which is  under /etc/ppp dir(debian system).

the content in that is same as pppd's options file.