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What SNAT address assigned to traffic?


rev.dennis

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It's quite difficult to troubleshoot traffic issues when a SNAT is assigned from a pool since its random and changes every time a new connection is established.

Below are some hints on how to IDENTIFY what SNAT is assigned to the traffic using tmsh show sys connection

SNAT stands for Source Network Address Translation.

IDENTIFY what SNAT is assigned to the traffic from user source IP 74.32.5.21 (typically you don't want to specify source port since its random generated)

tmsh show sys connection cs-client-addr 74.32.5.21

IDENTIFY what SNAT is assigned to the traffic on virtual server 10.47.196.154 on port 80

tmsh show sys connection cs-server-addr 10.47.196.154 cs-server-port 80

IDENTIFY what SNAT is assigned to traffic destined for pool member 10.40.144.18 over port 443

tmsh show sys connection ss-server-addr 10.40.144.18 ss-server-port 443

Explaination of columns when running tmsh show sys connection

cs-client-addr:cs-client-port | cs-server-addr:cs-server-port | ss-client-addr:ss-client-port | ss-server-addr:ss-server-port
Computer IP & PORT            | Virtual Server IP & PORT      | SNAT IP & PORT                | Server IP & PORT

LTM_SNAT_Communication.png

 

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