Postfix-Server behind a DSL-Router

[Peter Ulrich Kruppa]

Am 09.04.2015 um 23:36 schrieb Mike Wright:
>
>
> On 04/09/2015 02:34 PM, Peter Ulrich Kruppa wrote:
>>
>>
>> Am 09.04.2015 um 23:03 schrieb Mike Wright:
>>>
>>>
>>> On 04/09/2015 01:38 PM, Peter Ulrich Kruppa wrote:
>>>> Am 09.04.2015 um 22:06 schrieb Andy Blanchard:
>>>>> Yep. Get it on the same network as the server and run the command:
>>>>>
>>>>> telnet 192.168.10.1 25
>>>> Now guess what - it says
>>>>
>>>> telnet: Unable to connect to remote host: No route to host
>>>>
>>> That's not good.
>>>
>>> Show us these:
>>>
>>> 1) ip a l         (ip address list)
>>>
>>> 2) ip r l         (ip route list)
>>  From my laptop or from my server?
>
>  From your mail server.
Good morning - in the meantime I fell asleep ...
but here are my server's results:


# ip a l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
group default
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     inet 127.0.0.1/8 scope host lo
        valid_lft forever preferred_lft forever
     inet6 ::1/128 scope host
        valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group 
default qlen 1000
     link/ether 90:f6:52:05:19:97 brd ff:ff:ff:ff:ff:ff
3: enp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group 
default qlen 1000
     link/ether 94:de:80:9a:51:f8 brd ff:ff:ff:ff:ff:ff
4: enp4s6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast 
state UP group default qlen 1000
     link/ether 00:30:84:0c:b1:0b brd ff:ff:ff:ff:ff:ff
     inet 192.168.10.1/24 brd 192.168.10.255 scope global enp4s6
        valid_lft forever preferred_lft forever
     inet6 fe80::230:84ff:fe0c:b10b/64 scope link
        valid_lft forever preferred_lft forever
5: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue 
state DOWN group default
     link/ether 86:d3:53:76:dc:0c brd ff:ff:ff:ff:ff:ff
     inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
        valid_lft forever preferred_lft forever


# ip r l
default via 192.168.10.254 dev enp4s6
169.254.0.0/16 dev enp4s6  scope link  metric 1004
192.168.10.0/24 dev enp4s6  proto kernel  scope link  src 192.168.10.1
192.168.122.0/24 dev virbr0  proto kernel  scope link  src 192.168.122.1


Greetings

Peter