# Configuring LAN Gateway on Oracle Linux **URL:** \ **Category:** Ziti Overlay\ **Created:** [September 3, 2022, 5:18am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728 "2022-09-03T05:18:09Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 3, 2022, 5:18am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/1 "2022-09-03T05:18:09Z")
I am working through the instructions in the video produced by @rcsoleng. > [@Configure an edge-router as gateway?](https://openziti.discourse.group/t/configure-an-edge-router-as-gateway/508/8): > > Hi Markamind: Here is a video on using an open ziti-router as a Lan GW [Using an OpenZiti router as a LAN Gateway - YouTube](https://www.youtube.com/watch?v=H0qGRBMGNIA) After setting up the remote router, I receive the following error when I run it. `FATAL edge/tunnel/dns.NewDnsServer: dns server failed to start: listen udp 10.0.0.121:53: bind: permission denied` # What have I done to attempt to resolve this Checked that port 53 on UDP is open on the firewall and VCN (checked) # Other tips? I really feel like I am walking in the dark here.. I found this reference in the Oracle help documentation but are not 100% sure what it all means.. > Are there other steps that I need to take? > What else can I do to troubleshoot? > **[Setting Up Networking](https://docs.oracle.com/en/operating-systems/oracle-linux/8/network/network-ConfiguringtheNameService.html)** @TheLumberjack ---
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 3, 2022, 5:19am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/2 "2022-09-03T05:19:09Z")
@gooseleggs … any thoughts? ---
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 3, 2022, 5:23am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/3 "2022-09-03T05:23:52Z")
Hmm… I think I found the problem. `dig 10.0.0.121` When I run this command, the server could not be reached. However, I find this confusing as this is the output when I run ifconfig ```auto ens3: flags=4163 mtu 9000 inet 10.0.0.121 netmask 255.255.255.0 broadcast 10.0.0.255 inet6 fe80::17ff:fe00:2dc7 prefixlen 64 scopeid 0x20 ether 02:00:17:00:2d:c7 txqueuelen 1000 (Ethernet) RX packets 2703151 bytes 3031719249 (2.8 GiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2941664 bytes 2971859794 (2.7 GiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ``` My understanding is that you need to use the local private IP address for the server… that is attached to the network nic. Is this correct? ---
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 3, 2022, 5:25am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/4 "2022-09-03T05:25:50Z")
PS… I just logged into the Oracle Cloud admin panel and confirmed the private IP address is 10.0.0.121 ---
**Author:** ![TheLumberjack](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/thelumberjack/32/113_2.png) [@TheLumberjack](https://openziti.discourse.group/u/TheLumberjack)\ **Post date:** [September 3, 2022, 10:04pm UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/5 "2022-09-03T22:04:49Z")
> [@markamind](#): > > FATAL edge/tunnel/dns.NewDnsServer: dns server failed to start: listen udp 10.0.0.121:53: bind: permission denied Did you run the router as sudo? Is something already listening on that IP on port 53? Unfortunately, there's probably a bunch of reasons why that can happen. You need to figure out why the router wasn't permitted to bind on UDP port 53. I don't have any other great tips for you on this one. ---
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 4, 2022, 4:08am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/6 "2022-09-04T04:08:26Z")
Thanks for your feedback. I tried sudo which generated the same error. Maybe I am going down the wrong direction, as what I really wan to achieve is to configure a ZTNA. ie. I want to make a LAN connection between my laptop and a remote server that contains my private git repository… so that I can perform a push over a ziti network. Is this how you normally configure this? Or… is there another way to setup ZTNA that I could use? ---
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 4, 2022, 4:17am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/7 "2022-09-04T04:17:04Z")
Actually… I am not sure what I did… but I just realised that I have made some progress… as I am now getting a different error `FATAL edge/tunnel/dns.NewDnsServer: dns server failed to start: listen udp 168.138.10.79:53: bind: cannot assign requested address` Any ideas on what this means / where to investigate? ---
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 4, 2022, 4:24am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/8 "2022-09-04T04:24:26Z")
OK… I think I understand this message… is 168.138.10.79 is the external IP address… which is not included in the /etc/hosts file So… I should probably use the local IP address… however… I think the reason for permission denied error is because I did not include the private IP address when I rebuilt the controller PKI. Does this make sense? ---
**Author:** ![markamind](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/markamind/32/157_2.png) [@markamind](https://openziti.discourse.group/u/markamind)\ **Post date:** [September 4, 2022, 4:39am UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/9 "2022-09-04T04:39:27Z")
Working… now… I am not 100% sure what specifically I did… but the key things were 1. needs to run under sudo 2. I think both TCP 53 and UDP 53 ports need to be opened 3. resolver needs to use the local IP address: udp://10.0.0.121:53 4. router CSR… needs to use same details as controller ---
**Author:** ![TheLumberjack](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/thelumberjack/32/113_2.png) [@TheLumberjack](https://openziti.discourse.group/u/TheLumberjack)\ **Post date:** [September 4, 2022, 3:36pm UTC](https://openziti.discourse.group/t/configuring-lan-gateway-on-oracle-linux/728/10 "2022-09-04T15:36:48Z")
Sounds like you got it working, nice!