Sip/H.323 Alg Configuration Example - HP A6600 Configuration Manual

# Enable ALG for FTP.
[Router] alg ftp
# Configure NAT.
[Router] interface gigabitethernet 1/0/1
[Router-GigabitEthernet1/0/1] nat outbound 2001 address-group 1
# Configure the internal FTP server.
[Router-GigabitEthernet1/0/1]
192.168.1.2 ftp

SIP/H.323 ALG configuration example

NOTE:
H.323 ALG configuration is similar to SIP ALG configuration. The following takes SIP ALG
configuration as an example.
Network requirements
As shown in
The inside network segment of the company is 192.168.1.0/24. Configure NAT and ALG to meet the
following requirements:
SIP UA 1 in the inside network and SIP UA 2 in the outside network can communicate with their
•
aliases.
The company has four public network addresses, which are 5.5.5.1, 5.5.5.9, 5.5.5.10, and
•
5.5.5.11. SIP UA 1 selects one from the range 5.5.5.9 to 5.5.5.11 as its public network address
when registering with the SIP server in the outside network.
Figure 126 Network diagram for SIP ALG configuration
Configuration procedure
# Configure the address pool and ACL.
<Router> system-view
[Router] nat address-group 1 5.5.5.9 5.5.5.11
[Router] acl number 2001
[Router-acl-basic-2001] rule permit source 192.168.1.0 0.0.0.255
[Router-acl-basic-2001] rule deny
[Router-acl-basic-2001] quit
# Enable ALG for SIP.
[Router] alg sip
Figure 126, a company accesses the Internet through a router with NAT and ALG enabled.
nat server protocol
359
tcp global 5.5.5.10 ftp inside