Question

As soon as I switch on the VPN client on the RUT955 I can not access the router in the LAN network. No ping no web access.

Here the ifconfig output:

root@Teltonika-RUT955:~# ifconfig

br-lan    Link encap:Ethernet  HWaddr 00:1E:42:23:E6:C0

          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:550 errors:0 dropped:0 overruns:0 frame:0

          TX packets:271 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:62014 (60.5 KiB)  TX bytes:11682 (11.4 KiB)

eth0      Link encap:Ethernet  HWaddr 00:1E:42:23:E6:C0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:550 errors:0 dropped:0 overruns:0 frame:0

          TX packets:271 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:69714 (68.0 KiB)  TX bytes:11682 (11.4 KiB)

          Interrupt:5

eth1      Link encap:Ethernet  HWaddr 00:1E:42:23:E6:C1

          UP BROADCAST MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

          Interrupt:4

lo        Link encap:Local Loopback

          inet addr:127.0.0.1  Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:65536  Metric:1

          RX packets:24 errors:0 dropped:0 overruns:0 frame:0

          TX packets:24 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:1816 (1.7 KiB)  TX bytes:1816 (1.7 KiB)

tun_c_EnTS Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00

          inet addr:172.27.0.50  P-t-P:172.27.0.49  Mask:255.255.255.255

          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:458 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:100

          RX bytes:0 (0.0 B)  TX bytes:38460 (37.5 KiB)

wwan0     Link encap:Ethernet  HWaddr 22:28:28:5E:9C:50

          inet addr:10.49.101.165  Bcast:10.49.101.167  Mask:255.255.255.252

          inet6 addr: fe80::2028:28ff:fe5e:9c50/64 Scope:Link

          UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1

          RX packets:780 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1232 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:77873 (76.0 KiB)  TX bytes:435701 (425.4 KiB)

and the tcpdum output for br-lan

root@Teltonika-RUT955:~# tcpdump -i br-lan

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

listening on br-lan, link-type EN10MB (Ethernet), capture size 262144 bytes

12:53:57.117179 IP 192.168.1.99 > Teltonika-RUT955.com.lan: ICMP echo request, id 18911, seq 403, length 64

12:53:58.157139 IP 192.168.1.99 > Teltonika-RUT955.com.lan: ICMP echo request, id 18911, seq 404, length 64

12:53:59.197062 IP 192.168.1.99 > Teltonika-RUT955.com.lan: ICMP echo request, id 18911, seq 405, length 64

12:54:00.237071 IP 192.168.1.99 > Teltonika-RUT955.com.lan: ICMP echo request, id 18911, seq 406, length 64

I try to ping from 192.168.1.99 but no reply is send from the router.

I have only access from the WAN side.

What could be my fault.

Regards

Comments

Solved!

it look like a IP conflict with the VPN server. If I chnage the routers LAN IP to 192.168.0.1 everything works fine.

Answer 1

Hi,

It's great that issue got resolved, when using VPN in tunnel mode where routing is being done, it's always needed to have server and a client networks in different subnets.

If you'd like to have server and client in the same network/subnet then I'd suggest you to use OpenVPN in Bridge mode, you can find more information in our wiki configuration example.