Link Aggregation


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Linux Link Aggregation

Hi
ihave three link of internet and iwant to put one linux front of a firewall that this three linux speard firewall such az load balance and fialover but dont close any port and protocol and only firewall have been internet what way can i use for it ?
are there any script and services do that Such as stable ?
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flow-fanout(1)						      General Commands Manual						    flow-fanout(1)

NAME
flow-fanout -- Fanout (replicate) flow exports to many destinations. SYNOPSIS
flow-fanout [-h] [-A AS0_substitution] [-d debug_level] [-f filter_fname] [-F filter_definition] [-m privacy_mask] [-p pidfile] [-s] [-S stat_interval] [-V pdu_version] [-x xmit_delay] localip/remoteip/port localip/remoteip/port ... DESCRIPTION
The flow-fanout utility will replicate flows arriving on localip/remoteip/port to destination(s) specified by localip/remoteip/port. Flows processed by multiple exporters will be mixed into a single output stream. This functionality appeared to support Cisco Catalyst exports and may have other uses. A SIGQUIT or SIGTERM signal will cause flow-fanout to exit. OPTIONS
-A AS0_substitution Cisco's NetFlow exports represent the local autonomous system as 0 instead of the real value. This option can be used to replace the 0 in the export with the a configured value. Unfortunately under certain configurations AS 0 can also represent a cache miss or non forwarded traffic so use with caution. -d debug_level Enable debugging. -f filter_fname Filter list filename. Defaults to /etc/flow-tools/cfg/filter. -F filter_definition Select the active definition. Defaults to default. -h Display help. -m privacy_mask Apply privacy_mask to the source and destination IP address of flows. For example a privacy_mask of 255.255.255.0 would convert flows with source/destination IP addresses 10.1.1.1 and 10.2.2.2 to 10.1.1.0 and 10.2.2.0 respectively. -p pidfile Configure the process ID file. Use - to disable pid file creation. -s Spoof the source IP address. If the IP address is 0 then it is replaced with the exporter source IP. -S stat_interval When configured flow-fanout will emit a timestamped message on stderr every stat_interval minutes indicating counters such as the number of flows received, packets processed, and lost flows. -V pdu_version Use pdu_version format output. 1 NetFlow version 1 (No sequence numbers, AS, or mask) 5 NetFlow version 5 6 NetFlow version 6 (5+ Encapsulation size) 7 NetFlow version 7 (Catalyst switches) 8.1 NetFlow AS Aggregation 8.2 NetFlow Proto Port Aggregation 8.3 NetFlow Source Prefix Aggregation 8.4 NetFlow Destination Prefix Aggregation 8.5 NetFlow Prefix Aggregation 8.6 NetFlow Destination (Catalyst switches) 8.7 NetFlow Source Destination (Catalyst switches) 8.8 NetFlow Full Flow (Catalyst switches) 8.9 NetFlow ToS AS Aggregation 8.10 NetFlow ToS Proto Port Aggregation 8.11 NetFlow ToS Source Prefix Aggregation 8.12 NetFlow ToS Destination Prefix Aggregation 8.13 NetFlow ToS Prefix Aggregation 8.14 NetFlow ToS Prefix Port Aggregation 1005 Flow-Tools tagged version 5 -x xmit_delay Configure a microsecond transmit delay between packets. This may be necessary in some configurations to prevent a transmit buf- fer overrun. EXAMPLES
Replicate flows arriving to local IP address 10.0.0.1 from the router exporting with IP address 10.1.1.1 on port 9500 to localhost port 9500 and 10.5.5.5 port 9200. The exports sent to 10.5.5.5 will be sent with a source IP address of 10.0.0.5 which must be a valid local IP address. flow-fanout 10.0.0.1/10.1.1.1/9500 0/0/9500 10.0.0.5/10.5.5.5/9200 BUGS
NetFlow exports do not contain the exporter IP address inside the payload so the original exporter IP address (typically a router) will be lost when using flow-fanout. A work around for this protocol limitation is to use local IP aliases and the localip option. When the spoofing option is used multiple exporters with different IP addresses will share the same sequence number but will have the orig- inal source IP. Fixing this requires per source : destination sequence number mapping. It is much easier to just use multiple instances of flow-fanout running on different ports. AUTHOR
Mark Fullmer maf@splintered.net SEE ALSO
flow-tools(1) flow-fanout(1)

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