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    Network routing question

    Scheduled Pinned Locked Moved IT Discussion
    fedora 30network routingdns
    27 Posts 5 Posters 2.0k Views
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    • 1
      1337 @FATeknollogee
      last edited by

      @FATeknollogee said in Network routing question:

      @Pete-S I want to open up a browser & type in the name of a computer on vlan10 & have the traffic flow through.
      Right now, the traffic tries to go through the gateway on 1.1.1.1

      If you want to do it with just the desktop, it has to be connected to vlan10 as well.

      FATeknollogeeF 1 Reply Last reply Reply Quote 1
      • FATeknollogeeF
        FATeknollogee @1337
        last edited by

        @Pete-S The desktop is connected to vlan10 (my op says that, I think)

        1 KellyK 2 Replies Last reply Reply Quote 1
        • FATeknollogeeF
          FATeknollogee @Kelly
          last edited by

          @Kelly That's the problem, I need this traffic to NOT use the default gateway.

          1 Reply Last reply Reply Quote 0
          • 1
            1337 @FATeknollogee
            last edited by

            @FATeknollogee said in Network routing question:

            @Pete-S The desktop is connected to vlan10 (my op says that, I think)

            Run ip addr and post it.
            Run ip route and post it.

            FATeknollogeeF 1 Reply Last reply Reply Quote 1
            • KellyK
              Kelly @FATeknollogee
              last edited by

              @FATeknollogee said in Network routing question:

              @Pete-S The desktop is connected to vlan10 (my op says that, I think)

              Ok, I misunderstood your OP.

              1 Reply Last reply Reply Quote 0
              • FATeknollogeeF
                FATeknollogee @1337
                last edited by

                @Pete-S said in Network routing question:

                @FATeknollogee said in Network routing question:

                @Pete-S The desktop is connected to vlan10 (my op says that, I think)

                Run ip addr and post it.

                2: enp8s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
                    link/ether 00:25:90:6d:41:ee brd ff:ff:ff:ff:ff:ff
                    inet 10.250.251.242/22 brd 10.250.251.255 scope global dynamic noprefixroute enp8s0f0
                       valid_lft 77617sec preferred_lft 77617sec
                    inet6 fe80::d10b:e3fd:dfb6:4149/64 scope link noprefixroute 
                       valid_lft forever preferred_lft forever
                3: enp8s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master bridge0 state UP group default qlen 1000
                    link/ether 00:25:90:6d:41:ef brd ff:ff:ff:ff:ff:ff
                
                19: enp8s0f1.235@enp8s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
                    link/ether 00:25:90:6d:41:ef brd ff:ff:ff:ff:ff:ff
                    inet 10.50.235.12/24 brd 10.50.235.255 scope global dynamic noprefixroute enp8s0f1.235
                       valid_lft 522139sec preferred_lft 522139sec
                

                Run ip route and post it.

                default via 10.250.250.254 dev enp8s0f0 proto dhcp metric 102 
                default via 10.50.235.254 dev enp8s0f1.235 proto dhcp metric 400 
                default via 10.250.250.254 dev bridge0 proto dhcp metric 425 
                10.50.235.0/24 dev enp8s0f1.235 proto kernel scope link src 10.50.235.12 metric 400 
                10.250.248.0/22 dev enp8s0f0 proto kernel scope link src 10.250.251.242 metric 102 
                10.250.248.0/22 dev bridge0 proto kernel scope link src 10.250.251.243 metric 425
                
                1 Reply Last reply Reply Quote 0
                • DashrenderD
                  Dashrender
                  last edited by

                  I see these two IPv4 networks
                  10.250.251.242/22 brd 10.250.251.255
                  10.50.235.12/24 brd 10.50.235.255

                  Assuming you want to reach 10.50.235.200 for DNS, do you have that address setup as a DNS server?

                  Also, if you have multiple DNS server setup, it will use the first one until it fails, then it will failover to #2 in the list, etc. so you can't simply list multiple DNS server and expect them all to be used.

                  Can you ping the IP of the client you want to connect to by IP?

                  FATeknollogeeF 1 Reply Last reply Reply Quote 0
                  • FATeknollogeeF
                    FATeknollogee @Dashrender
                    last edited by FATeknollogee

                    @Dashrender said in Network routing question:

                    I see these two IPv4 networks
                    10.250.251.242/22 brd 10.250.251.255
                    10.50.235.12/24 brd 10.50.235.255

                    Assuming you want to reach 10.50.235.200 for DNS, do you have that address setup as a DNS server?

                    Also, if you have multiple DNS server setup, it will use the first one until it fails, then it will failover to #2 in the list, etc. so you can't simply list multiple DNS server and expect them all to be used.

                    Can you ping the IP of the client you want to connect to by IP?

                    DNS server is at 10.50.235.235
                    Yes, I can ping the DNS Server and the clients on the 10.50 network by IP address but not by name.
                    If I disable the 10.250 network, then I can ping & reach the clients by name.

                    dafyreD 1 Reply Last reply Reply Quote 0
                    • dafyreD
                      dafyre @FATeknollogee
                      last edited by

                      @FATeknollogee said in Network routing question:

                      @Dashrender said in Network routing question:

                      I see these two IPv4 networks
                      10.250.251.242/22 brd 10.250.251.255
                      10.50.235.12/24 brd 10.50.235.255

                      Assuming you want to reach 10.50.235.200 for DNS, do you have that address setup as a DNS server?

                      Also, if you have multiple DNS server setup, it will use the first one until it fails, then it will failover to #2 in the list, etc. so you can't simply list multiple DNS server and expect them all to be used.

                      Can you ping the IP of the client you want to connect to by IP?

                      DNS server is at 10.50.235.235
                      Yes, I can ping the DNS Server and the clients on the 10.50 network by IP address but not by name.
                      If I disable the 10.250 network, then I can ping & reach the clients by name.

                      What is your machine set to use for DNS server right now?

                      FATeknollogeeF dafyreD 2 Replies Last reply Reply Quote 1
                      • FATeknollogeeF
                        FATeknollogee @dafyre
                        last edited by

                        @dafyre said in Network routing question:

                        What is your machine set to use for DNS server right now?

                        It gets it's DNS settings from the DHCP server.
                        10.250.250.254
                        10.50.235.235

                        KellyK 1 Reply Last reply Reply Quote 0
                        • KellyK
                          Kelly @FATeknollogee
                          last edited by

                          @FATeknollogee said in Network routing question:

                          @dafyre said in Network routing question:

                          What is your machine set to use for DNS server right now?

                          It gets it's DNS settings from the DHCP server.
                          10.250.250.254
                          10.50.235.235

                          Does 250.254 have 235.235 in its upstream list or have a secondary zone for 235.x?

                          FATeknollogeeF 1 Reply Last reply Reply Quote 0
                          • FATeknollogeeF
                            FATeknollogee @Kelly
                            last edited by

                            @Kelly said in Network routing question:

                            @FATeknollogee said in Network routing question:

                            Does 250.254 have 235.235 in its upstream list or have a secondary zone for 235.x?

                            No, 250.254 doesn't have a DNS server, just services provided by the dhcp router.

                            KellyK 1 Reply Last reply Reply Quote 0
                            • KellyK
                              Kelly @FATeknollogee
                              last edited by

                              @FATeknollogee said in Network routing question:

                              @Kelly said in Network routing question:

                              @FATeknollogee said in Network routing question:

                              Does 250.254 have 235.235 in its upstream list or have a secondary zone for 235.x?

                              No, 250.254 doesn't have a DNS server, just services provided by the dhcp router.

                              I am confused. Either way, does the DNS server in the subnet where your DNS service is working have the DNS server for the non functioning subnet in its upstream list or a secondary zone for that subnet?

                              FATeknollogeeF 1 Reply Last reply Reply Quote 0
                              • FATeknollogeeF
                                FATeknollogee @Kelly
                                last edited by

                                @Kelly said in Network routing question:

                                @FATeknollogee said in Network routing question:

                                @Kelly said in Network routing question:

                                @FATeknollogee said in Network routing question:

                                Does 250.254 have 235.235 in its upstream list or have a secondary zone for 235.x?

                                No, 250.254 doesn't have a DNS server, just services provided by the dhcp router.

                                I am confused. Either way, does the DNS server in the subnet where your DNS service is working have the DNS server for the non functioning subnet in its upstream list or a secondary zone for that subnet?

                                250.254 is my Meraki router (so no "standalone" DNS server)
                                Not sure if I can add a secondary zone

                                KellyK 1 Reply Last reply Reply Quote 0
                                • KellyK
                                  Kelly @FATeknollogee
                                  last edited by

                                  @FATeknollogee said in Network routing question:

                                  @Kelly said in Network routing question:

                                  @FATeknollogee said in Network routing question:

                                  @Kelly said in Network routing question:

                                  @FATeknollogee said in Network routing question:

                                  Does 250.254 have 235.235 in its upstream list or have a secondary zone for 235.x?

                                  No, 250.254 doesn't have a DNS server, just services provided by the dhcp router.

                                  I am confused. Either way, does the DNS server in the subnet where your DNS service is working have the DNS server for the non functioning subnet in its upstream list or a secondary zone for that subnet?

                                  250.254 is my Meraki router (so no "standalone" DNS server)
                                  Not sure if I can add a secondary zone

                                  You can use an IP helper for a Meraki: https://documentation.meraki.com/MX/DHCP/Configuring_DHCP_Relay.

                                  FATeknollogeeF 1 Reply Last reply Reply Quote 0
                                  • dafyreD
                                    dafyre @dafyre
                                    last edited by

                                    @dafyre said in Network routing question:

                                    DNS server is at 10.50.235.235

                                    Configure your computer to look to 235.235 for DNS... and configure the DNS server at 235.235 to forward anything it doesn't recognize along to your Meraki?

                                    FATeknollogeeF 1 Reply Last reply Reply Quote 0
                                    • FATeknollogeeF
                                      FATeknollogee @Kelly
                                      last edited by

                                      @Kelly said in Network routing question:

                                      @FATeknollogee said in Network routing question:

                                      @Kelly said in Network routing question:

                                      @FATeknollogee said in Network routing question:

                                      @Kelly said in Network routing question:

                                      @FATeknollogee said in Network routing question:

                                      Does 250.254 have 235.235 in its upstream list or have a secondary zone for 235.x?

                                      No, 250.254 doesn't have a DNS server, just services provided by the dhcp router.

                                      I am confused. Either way, does the DNS server in the subnet where your DNS service is working have the DNS server for the non functioning subnet in its upstream list or a secondary zone for that subnet?

                                      250.254 is my Meraki router (so no "standalone" DNS server)
                                      Not sure if I can add a secondary zone

                                      You can use an IP helper for a Meraki: https://documentation.meraki.com/MX/DHCP/Configuring_DHCP_Relay.

                                      Unfortunately, no MX, I got rid of my MX84.
                                      DHCP is handled by Meraki MS320-24 Layer 3 switch

                                      1 Reply Last reply Reply Quote 0
                                      • 1
                                        1337
                                        last edited by

                                        Why are you discussing DNS? Routing has nothing to do with DNS. DNS is for resolving names.

                                        FATeknollogeeF 1 Reply Last reply Reply Quote 0
                                        • FATeknollogeeF
                                          FATeknollogee @1337
                                          last edited by

                                          @Pete-S said in Network routing question:

                                          Why are you discussing DNS? Routing has nothing to do with DNS. DNS is for resolving names.

                                          Because I want to access the resources via name resolution (you gotta read my OP)

                                          1 Reply Last reply Reply Quote 0
                                          • KellyK
                                            Kelly
                                            last edited by

                                            Looks like the MS series supports the DHCP relay setting: https://community.meraki.com/t5/Switching/need-to-configure-DHCP-IP-helper-address-on-VLAN-in-MS-switch/td-p/22806.

                                            FATeknollogeeF 1 Reply Last reply Reply Quote 0
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