[SR-Users] Setting source interface on relay

Kamailio receives a fairly arbitrary out of dialog NOTIFY on an interface with a private IP address (eth1). It runs it through the following code which relays it to an IP/port combo pulled from a hash table. The IP that it is relaying to is a public address and should be addressed out of the interface with a public IP address (eth0). It is, however, sent on the private interface (eth1) and thus never reaches its target. route[PHONEREBOOT] { # Only handle check-sync (Polycom) NOTIFY if (!is_method("NOTIFY") || $hdr(Event)!="check-sync") return; # Look up ip:port combo in the agentloc hash table if ($sht(agentloc=>$rU)==$null) return; # Set SIP URI to point to the agent $ru = "sip:" + $rU + "@" + $sht(agentloc=>$rU); route(RELAY); exit; } Is there a way to explicitly set the source interface to relay on? Thanks Phil Lavin Telecoms Systems Manager CloudCall by SYNETY www.cloudcall.com<http://www.cloudcall.com/> T: +44 (0) 330 335 0000 / +1 617 982 1600 D: +44 (0) 116 424 4790 / +1 716 242 6604 SM: LinkedIn<https://uk.linkedin.com/pub/phil-lavin/25/422/750> READ OUR BLOG FOR SMARTER COMMUNICATIONS<http://t.sidekickopen03.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n… Confidentiality: This e-mail transmission, including any attachments, is intended only for the named recipient(s) and may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you have received this transmission in error, or are not the named recipient(s), please notify the sender immediately by return e-mail and permanently delete this transmission, including any attachments. Security: This e-mail and any attachments are believed to be free from any virus but it is the responsibility of the recipient to ensure this is so. E-mail is not a 100% secure communication.