l2tp 连接不成功请帮忙！

tn***

有两台防火墙，支持L2tp 服务，在windows下，配置L2tp 客户端，均能连接成功。现有联想newwifi路由器，刷openwrt，配l2tp,能连接其中一台防火墙，但另一台防火墙不能连接，错误信息如下，不知怎么处理，请帮忙！

Wed Jan 20 12:42:21 2016 daemon.info xl2tpd[998]: Disconnecting from 222.xxx.166.xxx, Local: 24187, Remote: 9266
Wed Jan 20 12:42:21 2016 daemon.info xl2tpd[998]: Connection 9266 closed to 222.xxx.166.xxx, port 1701 (Goodbye!)
Wed Jan 20 12:42:21 2016 daemon.notice netifd: Interface 'ydsw' is now down
Wed Jan 20 12:42:21 2016 daemon.notice netifd: Interface 'ydsw' is setting up now
Wed Jan 20 12:42:21 2016 daemon.notice xl2tpd[998]: Connecting to host 222.xxx.166.xxx, port 1701
Wed Jan 20 12:42:21 2016 daemon.notice xl2tpd[998]: Connection established to 222.xxx.166.xxx, 1701.  Local: 18317, Remote: 64603 (ref=0/0).
Wed Jan 20 12:42:21 2016 daemon.notice xl2tpd[998]: Calling on tunnel 18317
Wed Jan 20 12:42:21 2016 daemon.notice xl2tpd[998]: Call established with 222.xxx.166.xxx, Local: 41292, Remote: 23598, Serial: 18 (ref=0/0)
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: start_pppd: I'm running:
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "/usr/sbin/pppd"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "plugin"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "pppol2tp.so"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "pppol2tp"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "10"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "passive"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "nodetach"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: ":"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "file"
Wed Jan 20 12:42:21 2016 daemon.debug xl2tpd[998]: "/tmp/l2tp/options.ydsw"
Wed Jan 20 12:42:21 2016 daemon.info pppd[7429]: Plugin pppol2tp.so loaded.
Wed Jan 20 12:42:21 2016 daemon.notice pppd[7429]: pppd 2.4.7 started by root, uid 0
Wed Jan 20 12:42:21 2016 kern.info kernel: [ 8332.410000] l2tp-ydsw: renamed from ppp0
Wed Jan 20 12:42:21 2016 daemon.info pppd[7429]: Using interface l2tp-ydsw
Wed Jan 20 12:42:21 2016 daemon.notice pppd[7429]: Connect: l2tp-ydsw <-->
Wed Jan 20 12:42:24 2016 daemon.info pppd[7429]: EAP: Identity prompt "Name"
Wed Jan 20 12:42:24 2016 daemon.err pppd[7429]: EAP: peer reports authentication failure
Wed Jan 20 12:42:24 2016 daemon.notice pppd[7429]: Connection terminated.
Wed Jan 20 12:42:24 2016 daemon.info pppd[7429]: Exit.
Wed Jan 20 12:42:24 2016 daemon.debug xl2tpd[998]: child_handler : pppd exited for call 23598 with code 19
Wed Jan 20 12:42:24 2016 daemon.info xl2tpd[998]: call_close: Call 41292 to 222.xxx.166.xxx disconnected
Wed Jan 20 12:42:24 2016 daemon.debug xl2tpd[998]: Terminating pppd: sending TERM signal to pid 7429
Wed Jan 20 12:42:52 2016 kern.info kernel: [ 8363.390000] wlan1: authenticate with 6c:59:40:aa:79:e6
Wed Jan 20 12:42:52 2016 kern.info kernel: [ 8363.440000] wlan1: send auth to 6c:59:40:aa:79:e6 (try 1/3)
Wed Jan 20 12:42:52 2016 kern.info kernel: [ 8363.440000] wlan1: authenticated
Wed Jan 20 12:42:52 2016 kern.info kernel: [ 8363.470000] wlan1: associate with 6c:59:40:aa:79:e6 (try 1/3)
Wed Jan 20 12:42:52 2016 kern.info kernel: [ 8363.470000] wlan1: RX AssocResp from 6c:59:40:aa:79:e6 (capab=0x411 status=0 aid=4)
Wed Jan 20 12:42:52 2016 kern.info kernel: [ 8363.480000] wlan1: associated
Wed Jan 20 12:42:52 2016 daemon.notice netifd: Network device 'wlan1' link is up
Wed Jan 20 12:42:52 2016 daemon.notice netifd: Interface 'wwan' has link connectivity
Wed Jan 20 12:42:52 2016 daemon.notice netifd: Interface 'wwan' is setting up now
Wed Jan 20 12:42:52 2016 daemon.notice netifd: wwan (7462): udhcpc (v1.23.2) started
Wed Jan 20 12:42:53 2016 daemon.notice netifd: wwan (7462): Sending discover...
Wed Jan 20 12:42:56 2016 daemon.notice netifd: wwan (7462): Sending discover...
Wed Jan 20 12:42:59 2016 daemon.notice netifd: wwan (7462): Sending discover...

tn***

另一台防火墙连接成功，信息如下
Wed Jan 20 12:30:30 2016 kern.info kernel: [ 7621.700000] ralink_soc_eth 10100000.ethernet eth0: port 4 link up (100Mbps/Full duplex)
Wed Jan 20 12:30:46 2016 daemon.notice netifd: Interface 'ydep' is now down
Wed Jan 20 12:30:47 2016 daemon.notice netifd: Interface 'ydep' is setting up now
Wed Jan 20 12:30:47 2016 daemon.notice xl2tpd[998]: Connecting to host 218.XXX.73.XXX, port 1701
Wed Jan 20 12:30:47 2016 daemon.notice xl2tpd[998]: Connection established to 218.XXX.73.Xxx, 1701.  Local: 24822, Remote: 1220 (ref=0/0).
Wed Jan 20 12:30:47 2016 daemon.notice xl2tpd[998]: Calling on tunnel 24822
Wed Jan 20 12:30:47 2016 daemon.notice xl2tpd[998]: Call established with 218.xxx.73.xxx, Local: 10434, Remote: 2924, Serial: 12 (ref=0/0)
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: start_pppd: I'm running:
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "/usr/sbin/pppd"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "plugin"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "pppol2tp.so"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "pppol2tp"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "10"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "passive"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "nodetach"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: ":"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "file"
Wed Jan 20 12:30:47 2016 daemon.debug xl2tpd[998]: "/tmp/l2tp/options.ydep"
Wed Jan 20 12:30:47 2016 daemon.info pppd[6521]: Plugin pppol2tp.so loaded.
Wed Jan 20 12:30:47 2016 daemon.notice pppd[6521]: pppd 2.4.7 started by root, uid 0
Wed Jan 20 12:30:47 2016 kern.info kernel: [ 7638.070000] l2tp-ydep: renamed from ppp0
Wed Jan 20 12:30:47 2016 daemon.info pppd[6521]: Using interface l2tp-ydep
Wed Jan 20 12:30:47 2016 daemon.notice pppd[6521]: Connect: l2tp-ydep <-->
Wed Jan 20 12:30:51 2016 daemon.info pppd[6521]: CHAP authentication succeeded: Login OK, welcom!
Wed Jan 20 12:30:51 2016 daemon.notice pppd[6521]: CHAP authentication succeeded
Wed Jan 20 12:30:51 2016 daemon.notice pppd[6521]: local  IP address 192.166.17.17
Wed Jan 20 12:30:51 2016 daemon.notice pppd[6521]: remote IP address 192.166.0.1
Wed Jan 20 12:30:51 2016 daemon.notice netifd: Network device 'l2tp-ydep' link is up
Wed Jan 20 12:30:51 2016 daemon.notice netifd: Interface 'ydep' is now up
Wed Jan 20 12:30:51 2016 user.notice firewall: Reloading firewall due to ifup of ydep (l2tp-ydep)