[strongSwan] Load tester for xauth

Kimi Chen kchen at appannie.com
Tue Jan 27 03:46:31 CET 2015

Hi All,

I want to do load test for xauth, but I don't know how to configure load
tester correctly. Please help me, thanks a lot.

Here is my server's configuration:
conn IKEv1_Xauth_RSA

My load-tester's configuration is like below.
plugins {
load-tester { # enable the plugin
enable = yes # 10000 connections, ten in parallel
version = 1
initiators = 1
iterations = 1 # use a delay of 100ms, overall time is: iterations * delay
= 100s
delay = 100 # address of the gateway (releases before 5.0.2 used the
"remote" keyword!)
responder = # IKE-proposal to use
proposal = aes128-sha1-modp1024 # use faster PSK authentication instead of
1024bit RSA
initiator_auth = pubkey
issuer_cert = /etc/ipsec.d/cacerts/ca.crt
issuer_key = /etc/ipsec.d/private/ca.key
initiator_id = conn-%d-round-%d at VPN Defender.org
responder_id = "O=VPN Defender Staging, CN=vpn-stg.vpndefender.com" #
request a virtual IP using configuration payloads
request_virtual_ip = yes # disable IKE_SA rekeying (default)
ike_rekey = 0 # enable CHILD_SA every 60s
child_rekey = 60 # do not delete the IKE_SA after it has been established
delete_after_established = no # do not shut down the daemon if all IKE_SAs
shutdown_when_complete = no

If I comment rightauth2 at server side, "#rightauth2=xauth-eap",
load-tester works well. If I enable rightauth2, the load-tester cannot
work, even if I change the initiator_auth, "initiator_auth= pubkey|xauth",
or "initiator_auth= pubkey|eap-md5". The load-tester's log is like below:
"Jan 26 15:01:44 24[IKE] <load-test|2> initiating Main Mode IKE_SA load-test
2 <https://wiki.strongswan.org/issues/835#fn2> to
Jan 26 15:01:44 24[CFG] <load-test|2> configuration uses unsupported
Jan 26 15:01:44 24[MGR] <load-test|2> tried to check-in and delete
nonexisting IKE_SA"

Anyone who knows how to configure load-tester to support xauth, please help
me. Really appreciated.

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