Re: F28, openvpn, NetworkManager

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On 5/27/19 10:23 AM, Jack Craig wrote:
> so, i have enp420 & tun0. when tun0 comes up, route are not properly update for tun0
> routing. i think...
>
> default via 10.0.0.1 dev enp4s0 proto dhcp metric 100
> 10.0.0.0/24 <http://10.0.0.0/24> via 10.0.0.1 dev enp4s0 proto static metric 2
> 10.0.0.0/24 <http://10.0.0.0/24> dev enp4s0 proto kernel scope link src 10.0.0.101
> metric 100
> 10.8.0.0/24 <http://10.8.0.0/24> dev tun0 proto kernel scope link src 10.8.0.1
> 10.8.1.0/24 <http://10.8.1.0/24> via 10.8.0.2 dev tun0
> 10.8.2.0/24 <http://10.8.2.0/24> via 10.8.0.2 dev tun0
> 192.168.122.0/24 <http://192.168.122.0/24> dev virbr0 proto kernel scope link src
> 192.168.122.1 linkdown
>
> looks like maybe some NM policy is broke?
>
> does NM create proper route for your vpn on NM restart?
>
>

Before the vpn is started...

[egreshko@meimei ~]$ ip -4 route show
default via 192.168.1.1 dev enp2s0 proto static metric 100
192.168.1.0/24 dev enp2s0 proto kernel scope link src 192.168.1.18 metric 100

[root@meimei ~]# tcptraceroute 151.101.129.67
Running:
        traceroute -T -O info 151.101.129.67
traceroute to 151.101.129.67 (151.101.129.67), 30 hops max, 60 byte packets
 1  wifi.greshko.com (192.168.1.1)  0.607 ms  0.546 ms  2.658 ms
 2  211-75-128-254.HINET-IP.hinet.net (211.75.128.254)  6.886 ms  6.919 ms  6.897 ms
 3  tpdt-3308.hinet.net (168.95.211.46)  7.212 ms  6.867 ms  7.150 ms
 4  tpdt-3022.hinet.net (220.128.27.94)  7.819 ms 220-128-1-102.HINET-IP.hinet.net
(220.128.1.102)  7.338 ms  7.760 ms
 5  r4103-s2.tp.hinet.net (220.128.2.109)  7.224 ms r4103-s2.tp.hinet.net (220.128.2.13) 
7.022 ms  7.020 ms
 6  r4003-s2.tp.hinet.net (220.128.3.249)  7.036 ms  6.781 ms r4003-s2.tp.hinet.net
(220.128.3.145)  19.583 ms
 7  211-22-33-77.HINET-IP.hinet.net (211.22.33.77)  39.508 ms  39.141 ms  39.083 ms
 8  HundredGE0-5-0-0.br02.hkg12.pccwbtn.net (63.218.174.197)  30.705 ms  31.085 ms  31.056 ms
 9  HundredGE0-5-0-0.br02.hkg12.pccwbtn.net (63.218.174.197)  30.298 ms  30.503 ms  30.797 ms
10  fastly.bundle24.br02.hkg12.pccwbtn.net (63.217.237.106)  30.157 ms  30.205 ms  30.114 ms
11  151.101.129.67 (151.101.129.67) <syn,ack>  38.761 ms  36.893 ms  36.795 ms

After the vpn is started...

[egreshko@meimei ~]$ ip -4 route show
default via 25.0.9.1 dev tun0 proto static metric 50
default via 192.168.1.1 dev enp2s0 proto static metric 100 
25.0.9.0/24 dev tun0 proto kernel scope link src 25.0.9.5 metric 50
173.199.122.227 via 192.168.1.1 dev enp2s0 proto static metric 100
192.168.1.0/24 dev enp2s0 proto kernel scope link src 192.168.1.18 metric 100
192.168.1.1 dev enp2s0 proto static scope link metric 100

[root@meimei ~]# tcptraceroute 151.101.129.67
Running:
        traceroute -T -O info 151.101.129.67
traceroute to 151.101.129.67 (151.101.129.67), 30 hops max, 60 byte packets
 1  _gateway (25.0.9.1)  208.511 ms  208.499 ms  208.497 ms
 2  * * *
 3  66.55.141.1 (66.55.141.1)  209.053 ms  209.060 ms  209.058 ms
 4  * * *
 5  * vl42-er1-q8.pnj1.choopa.net (108.61.2.90)  416.846 ms *
 6  * * fastly-1.nyiix.net (198.32.160.22)  209.044 ms
 7  151.101.129.67 (151.101.129.67) <syn,ack>  208.678 ms  208.799 ms fastly-1.nyiix.net
(198.32.160.22)  209.042 ms

I've not looked at the openVPN protocol in quite some time.  However, if your
configuration has the IPv4 configuration for the connection set to "Automatic" then isn't
the server side responsible for sending routing information to the client?

-- 
Right: I dislike the default color scheme Wrong: What idiot picked the default color scheme
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