LinuxQuestions.org - [SOLVED] Concurrent access to multiple Networks.

- Linux - Networking (https://www.linuxquestions.org/questions/linux-networking-3/)

- - Concurrent access to multiple Networks. (https://www.linuxquestions.org/questions/linux-networking-3/concurrent-access-to-multiple-networks-4175414572/)

Concurrent access to multiple Networks.

I have a 3G dongle plugged in to access the Internet and a wireless LAN to allow access to this computer from elswhere on the wireless network.

Code:

ppp0      Link encap:Point-to-Point Protocol  

          inet addr:xxx.xxx.xxx.xxx  P-t-P:10.64.64.64  Mask:255.255.255.255

          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1

          RX packets:31813 errors:0 dropped:0 overruns:0 frame:0

          TX packets:26265 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:3 

          RX bytes:29531293 (29.5 MB)  TX bytes:2746482 (2.7 MB)



usb0      Link encap:Ethernet  HWaddr 02:50:f3:00:00:00  

          inet6 addr: fe80::50:f3ff:fe00:0/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

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

          TX packets:917 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:0 (0.0 B)  TX bytes:233107 (233.1 KB)



wlan0    Link encap:Ethernet  HWaddr 74:e5:0b:cd:48:10  

          inet addr:10.0.0.28  Bcast:10.0.0.255  Mask:255.255.255.0

          inet6 addr: fe80::76e5:bff:fecd:4810/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:9 errors:0 dropped:0 overruns:0 frame:0

          TX packets:922 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:1191 (1.1 KB)  TX bytes:81745 (81.7 KB)

The problem is that I cannot connect to the Internet if the wlan is up, but once I disconnect, Internet access is restored.

curious - does unplugging your router & plugging it back in (while wlan is connected) work? So in other words, is it trying to access the internet through wlan instead of its normal route?

Rebooting the wireless access point makes no difference.

Code:

ppp0      Link encap:Point-to-Point Protocol  

          inet addr:xxx.xxx.xxx.xxx  P-t-P:10.64.64.64  Mask:255.255.255.255

          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1

          RX packets:1485 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1185 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:3 

          RX bytes:1403043 (1.4 MB)  TX bytes:175742 (175.7 KB)



usb0      Link encap:Ethernet  HWaddr 02:50:f3:00:00:00  

          inet6 addr: fe80::50:f3ff:fe00:0/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

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

          TX packets:2 errors:165 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:0 (0.0 B)  TX bytes:180 (180.0 B)



wlan0    Link encap:Ethernet  HWaddr 74:e5:0b:cd:48:10  

          inet addr:10.0.0.28  Bcast:10.0.0.255  Mask:255.255.255.0

          inet6 addr: fe80::76e5:bff:fecd:4810/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:5087 errors:0 dropped:0 overruns:0 frame:0

          TX packets:9456 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:916346 (916.3 KB)  TX bytes:859754 (859.7 KB)



root@Guybrush:/opt/libredwg# ping 8.8.8.8

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.

From 10.0.0.28 icmp_seq=2 Destination Host Unreachable

From 10.0.0.28 icmp_seq=3 Destination Host Unreachable

Yes, it's obviously trying to connect via the 10.0.0.0 subnet instead of the ppp0 connection....

Gateway address is usually the cause. Only one gateway address is needed.

Thank you.

The Gateway setting for the connection was it's own IP.

Once I Deleted the connection and set it up as a Manual IP without a gateway it worked.