Nat Hairpin In C/S Mode - H3C MSR 2600 Configuration Manual

Local
NAT logging:
Log enable : Disabled
Flow-begin : Disabled
Flow-end
Flow-active: Disabled
NAT mapping behavior:
Mapping mode: Address and Port-Dependent
ACL
NAT ALG:
DNS: Enabled
FTP: Enabled
H323: Enabled
ICMP-ERROR: Enabled
# Use the display nat session verbose command to display NAT session information generated when
Host accesses the Web server.
[Router] display nat session verbose
Initiator:
Source
Destination IP/port: 202.38.1.2/8080
VPN instance/VLAN ID/VLL ID: -/-/-
Protocol: TCP(6)
Responder:
Source
Destination IP/port: 202.38.1.3/1025
VPN instance/VLAN ID/VLL ID: -/-/-
Protocol: TCP(6)
State: TCP_ESTABLISHED
Application: HTTP
Start time: 2012-08-15 14:53:29
Interface(in) : GigabitEthernet1/2
Interface(out): GigabitEthernet1/1
Initiator->Responder:
Responder->Initiator:
Total sessions found: 1

NAT hairpin in C/S mode

Network requirements
As shown in
external users.
Configure NAT hairpin in C/S mode to allow external and internal users to access the internal FTP server.
IP/port: 200.1.1.3/53
: Disabled
: ---
IP/port: 192.168.1.2/1694
IP/port: 192.168.1.2/8080
Figure 58, the internal FTP server at 192.168.1.4/24 provides services for internal and
TTL: 3597s
7 packets 308 bytes
5 packets 312 bytes
141