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03-09-2014, 11:02 AM
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#1
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Member
Registered: Apr 2010
Location: India /Hyderabad
Distribution: RedHat, CentOS
Posts: 273
Rep:
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openswan ipsec tunnel bandwidth is low compared to internet
Hi all,
i have created openswan ipsec tunnel between two branches, thing is when i test it using iperf over normal internet (between public ips)with out tunnel it is showing me bandwidth of 67 Mbps , but if i run the same iperf between private ips via ipsec tunnel it is only showing 28 or 30 Mbps. My itnernet speed is 100Mbps.
Please help me out how to get more bandwidth via ipsec tunnel.
Thanks in advance.
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03-11-2014, 02:16 PM
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#2
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Senior Member
Registered: Apr 2009
Posts: 1,880
Rep: ![Reputation: 162](https://www.linuxquestions.org/questions/images/reputation/reputation_pos.gif)
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What's CPU usage when bandwidth using iperf over IPSec tunnel is tested?
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03-12-2014, 01:56 AM
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#3
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Member
Registered: Apr 2010
Location: India /Hyderabad
Distribution: RedHat, CentOS
Posts: 273
Original Poster
Rep:
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hi nini09,
no change normal as 0.1 % memory also.
thanks
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03-12-2014, 02:26 PM
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#4
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Senior Member
Registered: Apr 2009
Posts: 1,880
Rep: ![Reputation: 162](https://www.linuxquestions.org/questions/images/reputation/reputation_pos.gif)
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Do you have data, ping response time over IPSec tunnel against public and private provider?
If no change after testing is started, that means that CPU wait something.
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01-14-2015, 02:54 AM
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#5
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Member
Registered: Sep 2014
Posts: 63
Rep: ![Reputation: Disabled](https://www.linuxquestions.org/questions/images/reputation/reputation_off.gif)
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Quote:
Originally Posted by Gil@LQ
Hi all,
i have created openswan ipsec tunnel between two branches, thing is when i test it using iperf over normal internet (between public ips)with out tunnel it is showing me bandwidth of 67 Mbps , but if i run the same iperf between private ips via ipsec tunnel it is only showing 28 or 30 Mbps. My itnernet speed is 100Mbps.
Please help me out how to get more bandwidth via ipsec tunnel.
Thanks in advance.
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Hello,
I am facing the same problem,hope you found the solution.
can you please me ...
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01-15-2015, 02:45 PM
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#6
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Senior Member
Registered: Apr 2009
Posts: 1,880
Rep: ![Reputation: 162](https://www.linuxquestions.org/questions/images/reputation/reputation_pos.gif)
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What kind of tunnel do you use, KLIPS or Netkey?
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01-15-2015, 07:26 PM
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#7
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Member
Registered: Sep 2014
Posts: 63
Rep: ![Reputation: Disabled](https://www.linuxquestions.org/questions/images/reputation/reputation_off.gif)
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Quote:
Originally Posted by nini09
What kind of tunnel do you use, KLIPS or Netkey?
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Jan 16 01:24:26 cpu6500v2 daemon.err ipsec_setup: Using NETKEY(XFRM) stack
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01-16-2015, 02:51 PM
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#8
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Senior Member
Registered: Apr 2009
Posts: 1,880
Rep: ![Reputation: 162](https://www.linuxquestions.org/questions/images/reputation/reputation_pos.gif)
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It could be fragment issue or PATH MTU. How about KLIPS?
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