05-31-2012 12:14 PM - edited 03-11-2019 04:14 PM
I'm trying to be able to reach the inside IP of the firewall while logged into the VPN. I can reach everything behind the inside network except the firewall (.1), ping, nor SSH works.
As a workaround, I currently ssh into another box on the inside network and than ssh to .1 which works.
The logs show this during the connection attempt:
%ASA-6-302013: Built inbound TCP connection 211656 for outside:10.0.17.11/59835 (10.0.17.11/59835) to identity:10.0.18.1/22 (10.0.18.1/22) (xx)
%ASA-6-302014: Teardown TCP connection 211656 for outside:10.0.17.11/59835 to identity:10.0.18.1/22 duration 0:00:00 bytes 0 TCP Reset by appliance (xx)
If it matters, we also use the same VPN for external access so some of our "public internet traffic" goes through it which is why we have the nat outbound on the VPN IP block.
VPN Block: 10.0.17.0/24
Inside Block: 10.0.18.0/24
Config:
hostname vpn
domain-name x.x
enable password x.x encrypted
passwd x.x encrypted
names
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
switchport access vlan 2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
interface Vlan1
nameif inside
security-level 100
ip address 10.0.18.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 64.38.x.x 255.255.255.192
!
ftp mode passive
dns domain-lookup outside
dns server-group DefaultDNS
name-server 8.8.8.8
name-server 8.8.4.4
domain-name x.x
same-security-traffic permit intra-interface
access-list OUTBOUND extended deny ip any any log
access-list INBOUND extended deny ip any any log
access-list VPN-ACCESS standard permit host 216.86.x.x
access-list VPN-ACCESS standard permit 10.0.18.0 255.255.255.0
access-list NONAT extended permit ip 10.0.18.0 255.255.255.0 10.0.17.0 255.255.255.0
pager lines 24
logging enable
logging buffered debugging
mtu inside 1500
mtu outside 1500
ip local pool THEPOOL 10.0.17.10-10.0.17.250
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat-control
global (outside) 1 interface
nat (inside) 0 access-list NONAT
nat (inside) 1 10.0.18.0 255.255.255.0
nat (outside) 1 10.0.17.0 255.255.255.0
route outside 0.0.0.0 0.0.0.0 64.38.x.x 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
aaa authentication ssh console LOCAL
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set THESET esp-aes-256 esp-sha-hmac
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto dynamic-map DYNAMAP 10 set transform-set THESET
crypto map THEMAP 10 ipsec-isakmp dynamic DYNAMAP
crypto map THEMAP interface outside
crypto isakmp identity address
crypto isakmp enable outside
crypto isakmp policy 10
authentication pre-share
encryption aes-256
hash sha
group 2
lifetime 86400
crypto isakmp policy 65535
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet timeout 5
ssh 10.0.0.0 255.0.0.0 inside
ssh 173.255.x.x255.255.255.255 outside
ssh timeout 5
ssh version 2
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
group-policy VPN2_GROUP internal
group-policy VPN2_GROUP attributes
dns-server value 8.8.8.8
vpn-simultaneous-logins 2
vpn-idle-timeout 180
vpn-tunnel-protocol IPSec
split-tunnel-policy tunnelspecified
split-tunnel-network-list value VPN-ACCESS
default-domain value x.x
tunnel-group VPN2 type remote-access
tunnel-group VPN2 general-attributes
address-pool THEPOOL
default-group-policy VPN2_GROUP
tunnel-group VPN2 ipsec-attributes
pre-shared-key *****
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect ip-options
inspect netbios
inspect rsh
inspect rtsp
inspect skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
inspect tftp
inspect sip
inspect xdmcp
inspect icmp
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
call-home
profile CiscoTAC-1
no active
destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
destination address email callhome@cisco.com
destination transport-method http
subscribe-to-alert-group diagnostic
subscribe-to-alert-group environment
subscribe-to-alert-group inventory periodic monthly
subscribe-to-alert-group configuration periodic monthly
subscribe-to-alert-group telemetry periodic daily
Cryptochecksum:4fde47bb39dfdcc58894bbd55559209d
Solved! Go to Solution.
05-31-2012 12:26 PM
Can you add " management-access inside" and test again??
Thanks,
Varun Rao
Security Team,
Cisco TAC
05-31-2012 12:26 PM
Can you add " management-access inside" and test again??
Thanks,
Varun Rao
Security Team,
Cisco TAC
05-31-2012 12:28 PM
Yep, that was it!
Thanks much.
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