IP payload compression on l2l tunnel on ASA5520

Unanswered Question
Jul 29th, 2010
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Hi Guys,


Anyone knows how to turn on payload compression on site to site VPNs on ASA. Is it ASA wide option by command - " compression svc all "


Or is their any option we can set for indivual tunnels - i mean if i want to turn on one tunnel and dont want to do on others. Or i just want to turn for all l2l tunnels and not for remote access tunnels.



Any help will be appreciated.


Thank you.

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gr11gr11gr11 Mon, 08/02/2010 - 01:51
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Thanks jathaval. I will check this soon and if working will mark as resolved. Thanks for your help.

gr11gr11gr11 Mon, 08/02/2010 - 03:24
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Hello can yo please provide some other link looks like i dont have access to the document...

Jitendriya Athavale Mon, 08/02/2010 - 05:08
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  • Cisco Employee,

i am not sure why it is not letting you access those pages in any case here is the relevant information


Step 2 Specify whether to enable IP compression, which is disabled by default.

hostname(config-group-policy)# ip-comp {enable | disable}
hostname(config-group-policy)# 

To enable LZS IP compression, enter the ip-comp command with the enable keyword in group-policy configuration mode. To disable IP compression, enter the ip-comp command with the disable keyword.

To remove the ip-comp attribute from the running configuration, enter the no form of this command. This enables inheritance of a value from another group policy.

hostname(config-group-policy)# no ip-comp
hostname(config-group-policy)# 

Enabling data compression might speed up data transmission rates for remote dial-in users connecting with modems.


Caution Data  compression increases the memory requirement and CPU usage for each  user session and consequently decreases the overall throughput of the  adaptive security appliance. For this reason, we recommend that you  enable data compression only for remote users connecting with a modem.  Design a group policy specific to modem users, and enable compression  only for them.

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