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VPDN connection causes router to reboot

Hello all,

I have a Cisco 1710/VPN-9 and everytime a VPDN connection is made externally the router reboots itself. Typically using the Windows 2k Pro VPN client from serveral machines, the client will sit at verifying username and password then the router will reboot. Listed below is the config for my router

Any help would be appreciated.

Using 1566 out of 29688 bytes


version 12.2

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption


hostname xmain


enable secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxx


username x password 0 x

username x password 0 x

memory-size iomem 25

ip subnet-zero




ip audit notify log

ip audit po max-events 100

vpdn enable


vpdn-group 1

! Default PPTP VPDN group


protocol pptp

virtual-template 5

local name x







interface Ethernet0

ip address x.x.x.x

ip nat outside



interface FastEthernet0

ip address

ip nat inside

speed auto


interface Virtual-Template5

ip unnumbered Ethernet0

ip mroute-cache

peer default ip address pool REMOTE

ppp encrypt mppe auto

ppp authentication ms-chap


ip local pool REMOTE

ip nat inside source route-map NONAT interface Ethernet0 overload

ip classless

ip route Ethernet0

no ip http server



access-list 1 permit

access-list 121 permit ip

access-list 121 permit ip

access-list 131 deny ip

access-list 131 permit ip any


route-map NONAT permit 10

match ip address 131


snmp-server community IDSASTRA RO

snmp-server contact xxxx

snmp-server enable traps tty


line con 0

line aux 0

line vty 0 4

password xxxxx



no scheduler allocate



Re: VPDN connection causes router to reboot

Are you getting any error messages, that might give us an idea? Try debugging.