我正在使用 PPP（用于 vpn）连接到 Windows 服务器，我建立了连接但服务器没有响应我的地址请求：
*Mar 23 00:40:06.055: Vi1 MS-CHAP-V2: I CHALLENGE id 0 len 25 from "MSDC"
*Mar 23 00:40:06.063: Vi1 MS CHAP V2: Using hostname from interface CHAP
*Mar 23 00:40:06.063: Vi1 MS CHAP V2: Using password from interface CHAP
*Mar 23 00:40:06.067: Vi1 MS-CHAP-V2: O RESPONSE id 0 len 69 from "XXX"
*Mar 23 00:40:06.087: Vi1 PPP: I pkt type 0xC223, datagramsize 50 link[ppp]
*Mar 23 00:40:06.087: Vi1 MS-CHAP-V2: I SUCCESS id 0 len 46 msg is "S=XXX"
*Mar 23 00:40:06.087: Vi1 MS CHAP V2 No Password found for : XXX
*Mar 23 00:40:06.091: Vi1 MS CHAP V2 Check AuthenticatorResponse Success for : XXX
*Mar 23 00:40:06.091: Vi1 IPCP: O CONFREQ [Closed] id 1 len 20
*Mar 23 00:40:06.091: Vi1 IPCP: VSO OUI 0x00000C kind 1 (0x000A00000C0100000000)
*Mar 23 00:40:06.091: Vi1 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 23 00:40:07.091: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up
*Mar 23 00:40:07.091: Vi1 LCP: O ECHOREQ [Open] id 1 len 12 magic 0x194CAFCF
*Mar 23 00:40:07.103: Vi1 LCP-FS: I ECHOREP [Open] id 1 len 12 magic 0x361B62E5
*Mar 23 00:40:07.103: Vi1 LCP-FS: Received id 1, sent id 1, line up
*Mar 23 00:40:08.083: Vi1 IPCP: TIMEout: State REQsent
*Mar 23 00:40:08.083: Vi1 IPCP: O CONFREQ [REQsent] id 2 len 20
*Mar 23 00:40:08.083: Vi1 IPCP: VSO OUI 0x00000C kind 1 (0x000A00000C0100000000)
*Mar 23 00:40:08.083: Vi1 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 23 00:40:10.099: Vi1 IPCP: TIMEout: State REQsent
*Mar 23 00:40:10.099: Vi1 IPCP: O CONFREQ [REQsent] id 3 len 20
*Mar 23 00:40:10.099: Vi1 IPCP: VSO OUI 0x00000C kind 1 (0x000A00000C0100000000)
*Mar 23 00:40:10.099: Vi1 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 23 00:40:12.115: Vi1 IPCP: TIMEout: State REQsent
*Mar 23 00:40:12.115: Vi1 IPCP: O CONFREQ [REQsent] id 4 len 20
*Mar 23 00:40:12.115: Vi1 IPCP: VSO OUI 0x00000C kind 1 (0x000A00000C0100000000)
*Mar 23 00:40:12.115: Vi1 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 23 00:40:12.211: Vi1 LCP: O ECHOREQ [Open] id 2 len 12 magic 0x194CAFCF
*Mar 23 00:40:12.219: Vi1 LCP-FS: I ECHOREP [Open] id 2 len 12 magic 0x361B62E5
*Mar 23 00:40:12.219: Vi1 LCP-FS: Received id 2, sent id 2, line up
*Mar 23 00:40:14.131: Vi1 IPCP: TIMEout: State REQsent
*Mar 23 00:40:14.131: Vi1 IPCP: O CONFREQ [REQsent] id 5 len 20
*Mar 23 00:40:14.131: Vi1 IPCP: VSO OUI 0x00000C kind 1 (0x000A00000C0100000000)
*Mar 23 00:40:14.131: Vi1 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 23 00:40:16.147: Vi1 IPCP: TIMEout: State REQsent
*Mar 23 00:40:16.147: Vi1 IPCP: O CONFREQ [REQsent] id 6 len 20
*Mar 23 00:40:16.147: Vi1 IPCP: VSO OUI 0x00000C kind 1 (0x000A00000C0100000000)
*Mar 23 00:40:16.147: Vi1 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 23 00:40:17.331: Vi1 LCP: O ECHOREQ [Open] id 3 len 12 magic 0x194CAFCF
*Mar 23 00:40:17.343: Vi1 LCP-FS: I ECHOREP [Open] id 3 len 12 magic 0x361B62E5
*Mar 23 00:40:17.343: Vi1 LCP-FS: Received id 3, sent id 3, line up
您会看到：我的路由器请求地址，但只有保持活动处于在线状态。
但同一个服务器可以与 Windows 客户端一起工作！
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service internal
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
ip subnet-zero
!
!
ip cef
vpdn enable
!
vpdn-group pptp
request-dialin
protocol pptp
pool-member 1
initiate-to ip XXXX
!
!
!
!
!
!
!
bridge irb
!
!
interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
dsl operating-mode auto
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Dot11Radio0
no ip address
shutdown
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role root
!
interface Vlan1
no ip address
bridge-group 1
!
interface Dialer0
ip address negotiated
encapsulation ppp
dialer pool 1
dialer idle-timeout 0
dialer string XXX
dialer persistent
dialer vpdn
dialer-group 1
keepalive 5 3
no cdp enable
ppp authentication ms-chap-v2 optional
ppp eap refuse
ppp chap hostname XXX
ppp chap password 0 XXX
ppp ipcp mask request
ppp ipcp ignore-map
ppp ipcp address accept
!
interface BVI1
mac-address XXX.XXX.XXX
ip address dhcp
!
ip classless
ip route 172.0.0.0 255.0.0.0 Dialer0
!
no ip http server
no ip http secure-server
!
dialer-list 1 protocol ip permit
!
control-plane
!
bridge 1 protocol vlan-bridge
bridge 1 route ip
!
line con 0
no modem enable
line aux 0
line vty 0 4
login
!
scheduler max-task-time 5000
end
答案1
已修复：服务器需要 MPPE。但是为什么 PPP 在完成加密（应该是 lcp）之前就开始了 IPCP 阶段？无论如何，vpn 现在工作正常。