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Cisco 871W - PPTP - Passthrough

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Cisco 871W - PPTP - Passthrough

ajtk2000
I am trying to connect to a remote SBS 2003 VPN server from home.

I have a Cisco 871W router that I use to connect to the internet. It will establish the connection to the VPN server but will not verify username/password.

VPN connection is fine without the 871w connected.

Any ideas?
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0 Votes
NetMan1958

Are you trying to establish a pptp VPN from a computer that is on the LAN side of the 871 or is the VPN between the 871 and a remote device?

Do you have any access lists configured on the 871? If so, can you post them. Also do you have the Cisco firewall (ip inspect) configured on the 871? If so, can you post that config.

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0 Votes
ajtk2000

Thanks for the reply.

I had to permit GRE and PPTP, GRE was my problem

Just to clarify for others:

workstation is on the LAN side of the 871
VPN server is remote (SBS2003 at wife's office)

Here is config file. Let me know if you see anything that looks funny/unneeded.

I'm also forwarding mail and HTTP to inside the LAN which is working fine.

version 12.4
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
!
hostname D-T
!
boot-start-marker
boot-end-marker
!
security authentication failure rate 3 log
security passwords min-length 6
logging message-counter syslog
logging buffered 51200
logging console critical
enable secret 5 $1$SEO2$rROwq.
!
no aaa new-model
clock timezone PCTime -5
clock summer-time PCTime date Apr 6 2003 2:00 Oct 26 2003 2:00
!
crypto pki trustpoint TP-self-signed-2652445221
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-2652445221
revocation-check none
rsakeypair TP-self-signed-2652445221
!
!
crypto pki certificate chain TP-self-signed-2652445221
certificate self-signed 01
3082024C 308201B5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 32363532 34343532 3231301E 170D3039 31303039 31313135
32355A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D32 36353234
34353232 3130819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100B87C 6A558D88 EEAA4C73 3C1D8E55 8C95920F 239EB3A4 4BC58BB4 B97612F6
D7483CCD FFCD9C5F 3C76180A 63117F7A 715966CC 12FECD84 B891E364 160E457A
62BAEE68 1227F6A2 D84160D3 FC1CE7B9 06B103B1 053A8C91 50BB3745 F7581B45
98B881E5 DFAD3894 C3FC35DA E87D8E11 C71430D1 B69AA2CB DF35F18D 01EF28DB
AFC70203 010001A3 74307230 0F060355 1D130101 FF040530 030101FF 301F0603
551D1104 18301682 14534153 2D526F75 7465722E 7361732E 6C6F6361 6C301F06
03551D23 04183016 80143E19 8DEF4F2A 15C3E9B0 AD2C24C1 48F879D1 BD86301D
0603551D 0E041604 143E198D EF4F2A15 C3E9B0AD 2C24C148 F879D1BD 86300D06
092A8648 86F70D01 01040500 03818100 93B15416 C3133AB8 2D42E115 F1139AB2
3E501633 A397F03A 2332B378 D843567B 3233EF5F C390F2C4 80A46C85 2635F90C
74EFFBAE 981B8CD8 70FA099C 1CDB90BF 10636AB5 53D56786 1BDBC4E7 F3F6BE7D
8ECBD280 C4BEEB44 054AE40C C879D64F 9C852608 F3924869 A872041C B52CF103
C762A0D5 13568C57 E31BDAB5 24FE340B
quit
dot11 syslog
!
dot11 ssid D-T
authentication open
!
no ip source-route
!
!
ip dhcp excluded-address 192.168.10.1 192.168.10.9
ip dhcp excluded-address 192.168.10.101 192.168.10.254
!
ip dhcp pool D-Tech
import all
network 192.168.10.0 255.255.255.0
dns-server 24.25.4.107 24.25.4.108
default-router 192.168.10.254
!
!
ip cef
no ip bootp server
ip domain name D-Tech.local
ip name-server 24.25.1.107
ip name-server 24.25.4.108
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
username kevin privilege 15 secret 5 $1$kpQL$OcA.oIxeQLLKWbimwf5aT.
!
!
!
archive
log config
hidekeys
!
!
ip tcp synwait-time 10
ip ssh time-out 60
ip ssh authentication-retries 2
!
class-map type inspect match-all sdm-nat-http-1
match access-group 101
match protocol http
class-map type inspect match-all sdm-nat-http-2
match access-group 102
match protocol http
class-map type inspect match-all sdm-nat-smtp-1
match access-group 103
match protocol smtp
class-map type inspect match-any SDM_GRE
match access-group name SDM_GRE
class-map type inspect match-any excacl
match class-map SDM_GRE
match protocol pptp
class-map type inspect match-any CCP-Voice-permit
match protocol h323
match protocol skinny
match protocol sip
class-map type inspect match-any ccp-cls-insp-traffic
match protocol cuseeme
match protocol dns
match protocol ftp
match protocol h323
match protocol https
match protocol icmp
match protocol imap
match protocol pop3
match protocol netshow
match protocol shell
match protocol realmedia
match protocol rtsp
match protocol smtp extended
match protocol sql-net
match protocol streamworks
match protocol tftp
match protocol vdolive
match protocol tcp
match protocol udp
class-map type inspect match-all ccp-insp-traffic
match class-map ccp-cls-insp-traffic
class-map type inspect match-any exchange
match class-map SDM_GRE
match protocol pptp
class-map type inspect match-any ccp-cls-icmp-access
match protocol icmp
match protocol tcp
match protocol udp
class-map type inspect match-all ccp-invalid-src
match access-group 100
class-map type inspect match-all ccp-icmp-access
match class-map ccp-cls-icmp-access
class-map type inspect match-all ccp-protocol-http
match protocol http
!
!
policy-map type inspect ccp-permit-icmpreply
class type inspect ccp-icmp-access
class class-default
pass
policy-map type inspect sdm-pol-NATOutsideToInside-1
class type inspect excacl
pass
class type inspect exchange
inspect
class type inspect sdm-nat-http-1
inspect
class type inspect sdm-nat-http-2
inspect
class type inspect sdm-nat-smtp-1
inspect
class class-default
drop
policy-map type inspect ccp-inspect
class type inspect ccp-invalid-src
drop log
class type inspect ccp-protocol-http
inspect
class type inspect ccp-insp-traffic
inspect
class type inspect CCP-Voice-permit
inspect
class class-default
pass
policy-map type inspect ccp-permit
class class-default
drop
!
zone security out-zone
zone security in-zone
zone-pair security ccp-zp-self-out source self destination out-zone
service-policy type inspect ccp-permit-icmpreply
zone-pair security sdm-zp-NATOutsideToInside-1 source out-zone destination in-zone
service-policy type inspect sdm-pol-NATOutsideToInside-1
zone-pair security ccp-zp-in-out source in-zone destination out-zone
service-policy type inspect ccp-inspect
zone-pair security ccp-zp-out-self source out-zone destination self
service-policy type inspect ccp-permit
!
bridge irb
!
!
interface Null0
no ip unreachables
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
description $ES_WAN$$FW_OUTSIDE$
ip address dhcp client-id FastEthernet4
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat outside
ip virtual-reassembly
zone-member security out-zone
duplex auto
speed auto
!
interface Dot11Radio0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
!
ssid D-Tech2
!
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
!
interface Vlan1
description $ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$$FW_INSIDE$
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip virtual-reassembly
ip tcp adjust-mss 1452
bridge-group 1
!
interface BVI1
description $ES_LAN$$FW_INSIDE$
ip address 192.168.10.254 255.255.255.0
ip nat inside
ip virtual-reassembly
zone-member security in-zone
!
ip forward-protocol nd
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
!
ip nat inside source list 1 interface FastEthernet4 overload
ip nat inside source static tcp 192.168.10.252 80 interface FastEthernet4 80
ip nat inside source static tcp 192.168.10.1 25 interface FastEthernet4 25
!
ip access-list extended SDM_GRE
remark CCP_ACL Category=0
permit gre any any
!
logging trap debugging
access-list 1 remark INSIDE_IF=Vlan1
access-list 1 remark CCP_ACL Category=2
access-list 1 permit 192.168.10.0 0.0.0.255
access-list 100 remark CCP_ACL Category=128
access-list 100 permit ip host 255.255.255.255 any
access-list 100 permit ip 127.0.0.0 0.255.255.255 any
access-list 101 remark CCP_ACL Category=0
access-list 101 permit ip any host 192.168.10.252
access-list 102 remark CCP_ACL Category=0
access-list 102 permit ip any host 192.168.10.252
access-list 103 remark CCP_ACL Category=0
access-list 103 permit ip any host 192.168.10.1
no cdp run