3Com 3032 Configuration Manual page 356

3com 3032: user guide
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352
C
21: C
HAPTER
ONFIGURING
IP A
PPLICATION
access control list, then locate the corresponding data pool according to the
correlation. Thus, the source address is translated into one address in the data
pool and the address translation process is completed. In the translation
correlation form, the necessary corresponding information of the translation,
including access list, data pool information and the HASH table index
corresponding to the address pool are recorded.
HASH table is correlated to the data pool. That is to say, "the data packet that
implements address translation using the addresses in the address pool" will have
the record recorded in HASH table. During the translation, we can find the data
pool that corresponds with the data packet according to the translation
relationship. According to the address pool, we can find HASH and records the
translation record in the corresponding HASH table. In the restoration process, the
address pool can be located according to the destination address. And according
to the address pool, the relevant HASH table can be located, to implement
restoration operation.
Please carry out the following configuration under interface view.
Table 384 Configure the correlation between the access control list and address pool
Operation
Add the correlation between the access control list
and address pool.
Delete the correlation between the access control
list and address pool.
By default, the access control list is not correlated to any address pools.
3 Configure the incidence between the access control list and the interface (EASY IP
feature)
Configure the correlation between the access control and the interface is also
known as EASY IP feature. It refers to taking the IP address of the interface as the
translated source address directly during the course of address translation, which
is applicable to two conditions. In dial view, the user hopes to take the interface IP
address obtained through negotiation as the translated source address; or the user
hopes to take the IP address of the interface itself as the translated source address.
Please carry out the following configuration under interface view.
Table 385 Configure the correlation between the access control list and the interface
Operation
Add the correlation between the access control list and
interface.
Delete the correlation between the access control list
and interface.
By default, the access control list is not correlated to any interface.
4 Configure the Internal Server
The user can map the corresponding external address, the external port number
etc. to the internal server, to implement function for the external network to visit
the internal server. The mapping table between the internal server and external
network address and port number is configured by nat
the course of address restoration, the destination address of the external data
packet will be looked up according to the configuration of the user. To visit the
internal server, it is translated to the destination address and port number of the
Command
nat outbound acl-number
address-group pool-name
undo nat outbound acl-number
address-group pool-name
Command
nat outbound acl-number
interface
undo nat outbound
acl-number interface
command. During
server

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