Attention is currently required from: neels. pespin has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-mgw/+/35176?usp=email ) Change subject: mgcp_network: Allow rx of IuUP in loopback mode with set rem IP address and unset rem port ...................................................................... Patch Set 2: (1 comment) File src/libosmo-mgcp/mgcp_network.c: https://gerrit.osmocom.org/c/osmo-mgw/+/35176/comment/c37e978b_9e777f73 PS2, Line 866: HACK: for IuUP, we want to reply with an IuUP Initialization ACK upon the first RTP : * messag Neels I'm not sure how's that supposed to work without that hack. IIUC the steps are: HNBGW <- MSC: RAB-Ass-Req HNBGW -> MGW: CRCX (RAN side, remote IuUP IPaddr+port not known) HNBGW <- MGW: CRCX ACK (MGW local IuuP IPaddr+port is now known) HNB <- HNBGW: RAB-Ass-Req (MGW local IuuP IPaddr+port) HNB -> MGW: IuUP Init // THE CODE YOU REMOVED IS NEEDED HERE HNB <- MGW: IuUP Init ACK HNB -> HNBGW: RAB-Ass-Resp HNBGW -> MGW: MDCX (RAN side, remote IuUP IPaddr+port is now known) HNBGW <- MGW: MDCX ACK HNBGW -> MSC: RAB-Ass-Resp So IIUC IuUP Init happens before receiving RAB-ASs-resp, so MGW cannot know the remote IuUP IP addr + port when receiving the IuUP Init packet from HNB... -- To view, visit https://gerrit.osmocom.org/c/osmo-mgw/+/35176?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-mgw Gerrit-Branch: master Gerrit-Change-Id: Idd833997abce46886e9664505b2776fa5dadc8db Gerrit-Change-Number: 35176 Gerrit-PatchSet: 2 Gerrit-Owner: pespin &lt;pespin(a)sysmocom.de&gt; Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: neels &lt;nhofmeyr(a)sysmocom.de&gt; Gerrit-Attention: neels &lt;nhofmeyr(a)sysmocom.de&gt; Gerrit-Comment-Date: Fri, 01 Dec 2023 15:49:05 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: neels &lt;nhofmeyr(a)sysmocom.de&gt; Gerrit-MessageType: comment