Configuring Nat With Alg; Configuring Nat Session Logging; Displaying And Maintaining Nat - HP FlexNetwork MSR2003 Configuration Manual

Step
2. Enter interface view.
3. Enable NAT hairpin.

Configuring NAT with ALG

Configure NAT with ALG for a protocol to translate the IP addresses and port numbers in the
payloads for application layer packets.
To configure NAT with ALG:
Step
1. Enter system view.
2. Configure NAT with ALG for
a protocol or all protocols.

Configuring NAT session logging

NAT session logging records NAT session information, including translation information and access
information.
A NAT device generates NAT session logs for the following events:
•
NAT session establishment.
•
NAT session removal. This event occurs when you add a configuration with a higher priority,
remove a configuration, change ACLs, when a NAT session ages out, or when you manually
delete a NAT session.
•
Active NAT session logging.
To enable NAT session logging:
Step
1. Enter system view.
2. Enable NAT logging.
3. Enable NAT session
logging.

Displaying and maintaining NAT

Execute display commands in any view and reset commands in user view.
Command
interface interface-type
interface-number
nat hairpin enable
Command
system-view
nat alg { all | dns | ftp | h323 |
icmp-error | ils | mgcp | nbt |
pptp | rsh | rtsp | sccp | sip |
sqlnet | tftp | xdmcp }
Command
system-view
nat log enable [ acl acl-number ]
•
For NAT session establishment
events:
nat log flow-begin
•
For NAT session removal events:
nat log flow-end
•
For active NAT flows:
nat log flow-active time-value
138
Remarks
N/A
By default, NAT hairpin is disabled.
Remarks
N/A
By default, NAT with ALG is enabled.
Remarks
N/A
By default, NAT logging is
disabled.
By default, NAT session
logging is disabled.