RM551E-GL running OpenWRT can't seem to IP pass though

IoT Modules 5G Module
1

Hi all,

I have problems with IP pass though on my RM551E-GL running OpenWRT. I have been trying to get it to pass the IP to my UDM PRO and it will do it with no internet activity and will stay up for about a min and then discounts the network and i believe tries again. Each time it does this, it will pull a different 100.xxx.xxx.xxx ip but will never stay connected and doesn’t have internet. I have tried the AT commands to enable IP pass though with putting my mac address in it. I’ve also tried the ff:ff:ff AT command and it won’t do anything. I understand some AT codes but very limited. If anyone has a suggestion please let me know and thank you very much as this has stumped me for a week now and a lot of wasted time on trying to figure it out.

3

@ silvia.zhu
Could you help me? or at least get me in the right direction…

1 Like
4

Dear @dan_reed
Please check if your firmware support the AT commands below
AT+QMAP=“mPDN_rule”

5

@silvia … this is what it returns
AT+QMAP=“mPDN_rule”
ERROR

6

Please just check

AT+QMAP=?

7

@Bean.Wang-Q

AT+QMAP=?
+QMAP: “WWAN”,(0,1),(1-42),(“IPV4”,“IPV6”),
+QMAP: “DMZ”,(0,1),(4,6),
+QMAP: “LANIP”,
+QMAP: “VLAN”,(2-255),(“enable”,“disable”),(1-3,11-13)
+QMAP: “MPDN_rule”,(0-3),(1-16),(0,2-255),(0-3),(0,1),
+QMAP: “IPPT_NAT”,(0,1)
+QMAP: “auto_connect”,(0-3),(0,1),(1-16)
+QMAP: “MPDN_status”
+QMAP: “SFE”,(“enable”,“disable”)
+QMAP: “domain”,
+QMAP: “DHCPV6DNS”,(“enable”,“disable”)
+QMAP: “lan_mtu”,(0,1,46-9216)
OK

8

Please check

AT+QMAP="MPDN_rule"
AT+QMAP="IPPT_NAT"
9

AT+QMAP=“MPDN_rule”
+QMAP: “MPDN_rule”,0,0,0,0,0
+QMAP: “MPDN_rule”,1,0,0,0,0
+QMAP: “MPDN_rule”,2,0,0,0,0
+QMAP: “MPDN_rule”,3,0,0,0,0
OK

AT+QMAP=“IPPT_NAT”
+QMAP: “IPPT_NAT”,1
OK

just a little update sense we last talked.. I had the guy that i bought the modem from screen share today and he logged onto the modem. he did a few things to it and now i can’t even get it to pull a ip address anymore.

10

IPPT mode is not enabled.

image
image1383×663 127 KB

11

Please set
AT+QMAPWAC=1
and
AT+qmap="mpdn_rule",0,1,0,4,1,"FF:FF:FF:FF:FF:FF"
It would take effect after reboot.

12

I have tried that and this is the response i get
+QLWURC: “pdp active”,“failed”,“ims”
AT+QMAPWAC=1
OK
AT+qmap=“mpdn_rule”,0,1,0,4,1,“FF:FF:FF:FF:FF:FF”
ERROR

13

Please just check
AT+QMAP="mpdn_rule"
Then try
AT+QMAP="mpdn_rule",0,1,0,4,1,"FF:FF:FF:FF:FF:FF"
Make sure the quote is correct.

If it still failed, maybe we can say that it does not support IPPT or not impleteneted.

14

You need to put your mac address between quotes where it says ff:ff:ff.

15

I’ve tried that and still come up with an ERROR. Right now i’m trying to fig out what i have done that it won’t even dhcp an ip to my laptop unless i set my laptop to 192.168.224.2 I have never been so frustrated with a modem before then i am with this one. I should have waited a yr before trying it out lol

16

@dan_reed Did you solve it eventually, how did you do it?