[SR-Users] TCP keepalive on server and client

Hi I want to use TCP keepalive to detect dead connections between Kamailio and my SIP clients. I've got some questions about this: 1. If I enable it on Kamailio by setting for example: tcp_crlf_ping = yes tcp_keepalive = yes tcp_keepidle = 60 tcp_keepintvl = 10 tcp_keepcnt = 3 crlfcrlf sent by the client, but can't be configured to send the crlfcrlf. Is this right? 2. On my client, if I use setsockopt to set the corresponding values: SO_KEEPALIVE TCP_KEEPCNT TCP_KEEPIDLE TCP_KEEPINTVL would it make the client send crlfcrlf? The reason I'm confused is, with these settings, if Kamailio can only respond to crlfcrlf, but not send, then would the client only respond too, as in 1. and 2., they seem to configure the same set of parameters? Please help me clarify this. Thanks very much! Yufei -- Yufei Tao Red Embedded This E-mail and any attachments hereto are strictly confidential and intended solely for the addressee. If you are not the intended addressee please notify the sender by return and delete the message. You must not disclose, forward or copy this E-mail or attachments to any third party without the prior consent of the sender. Red Embedded Design, Company Number 06688253 Registered in England: The Waterfront, Salts Mill Rd, Saltaire, BD17 7EZ