User manual

Chapter 4 - Layer 3 Command Set - IP Networking Nat Command (Network Address Translation)
Alvarion BreezeNET B130/B300 GigE 203 Operational User Manual
 local_addr - LAN host address, its outgoing connections will be processed. If
address not specified then any port connections will be processed.
 local_port - a port outgoing messages from which will be processed. If the port
is not specified, the all connections from all ports are processed.
nat proxy_rule parameter value [parameter value]…
Redirection of outgoing packets. TCP packets outgoing from LAN to any address
with specified port, redirected to specified server and port. Optionally initial
destination address may be included into the packet using several ways.
Command line consists of word pairs: key parameter and its value.
Allowed parameters:
type encode_ip_hdr | encode_tcp_stream | no_encode
If transparent gateway requires information of initial address and an access port
of a new server, then it may be done in two following ways:
 If option encode_ip_hdr specified then original address and port are
transmitted in extended IP header fields (IP option).
 If option encode_tcp_stream specified, then original port and address are
transmitted in a packet before data start in format "DEST IP port".
port portnum
Only packets sent to specified port are processed.
server host[:portnum]
Mandatory parameter. Specifies server address and port for packet redirection. If
port not specified then original destination port will be used.
proto tcp | udp
If specified then only packets with specified protocol will be processed.
src IP[/bits]
dst IP[/bits]
Non-mandatory parameter. Specifies source/destination net (subnet) for packet
redirection.
Example:
nat proxy_rule proto tcp port 80 server 123.1.1.1:3128