On Fri, Mar 25, 2022 at 8:25 PM Ed Greshko <ed.greshko@xxxxxxxxxxx> wrote:
On 26/03/2022 10:29, Jack Craig wrote:
>
>
>
> i have a networking mystery ; i hope someone might give me a clue.
>
> i am working to restore a web server to internet access that is failing after att update
> the att older modem (pace 5238ac) with arris BGW210-700.
>
> i have a static ip from att in the range 108.220.213.0/255.255.255.248 <http://108.220.213.0/255.255.255.248>, 108.220.213.121 is the external ip for the server.
>
> the bgw210-700 is the primary router/modem and is connected to a 3rd party router, netgear nighthawk,
>
> the internal 10.0.0.0/ <http://10.0.0.0/> connects to the netgear nighthawk
>
> ATT's broadband configuration is
>
> Blackhole-ATT (wireless name)
>
> Broadband connection source DSL
> Broadband connection up
> Broadband network type lightspeed
> Broadband ipv4 address 108.90.204.76
> Broadband gateway address 108.90.204.1
>
>
> outbound packets from the server (WS), are routed from the 10.0.0.1 nighthawk to the ATT router to the internet.
>
> the 108.90.204.0 network routing from the att router to the att's gateway. .76 is the router, .1 is the GW.
>
> sample route, ...
>
> 10.0.0.101 ws.linuxlighthouse.com <http://ws.linuxlighthouse.com> (internal IP) 2 packets transmitted, 2 received, 0% packet loss, time 1033ms
> 10.0.0.1 Blackhole-NH 2 packets transmitted, 2 received, 0% packet loss, time 1018ms
> 192.168.1.254 Blackhole-ATT 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
> 108.90.204.76 att subnet (local router) 2 packets transmitted, 2 received, 0% packet loss, time 1002ms
> 108.90.204.1 att subnet (remote GW) 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
> 108.220.213.121 ws.linuxlighthouse.com <http://ws.linuxlighthouse.com> (public IP) 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
> 108.220.213.126 linuxlighthouse (public GW) 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
>
Sounds like 108.90.204.76 is missing routes. I'm assuming that 108.220.213.121 previously answered pings
and originally was the final destination of an external traceroute.
i was not seeing a way to add att rtr to have new routes.
[egreshko@meimei ~]$ traceroute 108.220.213.121
traceroute to 108.220.213.121 (108.220.213.121), 30 hops max, 60 byte packets
1 _gateway (192.168.1.1) 0.434 ms 0.728 ms 0.681 ms
2 * * *
3 tpdt-3308.hinet.net (168.95.82.198) 23.574 ms 23.530 ms 23.451 ms
4 tpdb-3031.hinet.net (220.128.1.102) 7.827 ms 220-128-1-50.hinet-ip.hinet.net (220.128.1.50) 7.210 ms tpdt-3032.hinet.net (220.128.27.94) 7.386 ms
5 r4102-s2.tp.hinet.net (220.128.7.69) 7.123 ms r4102-s2.tp.hinet.net (220.128.14.93) 7.296 ms r4102-s2.tp.hinet.net (220.128.13.93) 7.252 ms
6 r4002-s2.tp.hinet.net (220.128.6.85) 7.538 ms r4002-s2.tp.hinet.net (220.128.6.81) 6.710 ms 6.656 ms
7 pa-r32.us.hinet.net (202.39.91.29) 133.962 ms 132.083 ms 132.075 ms
8 32.141.85.13 (32.141.85.13) 133.458 ms 133.358 ms 133.297 ms
9 12.123.242.38 (12.123.242.38) 138.066 ms 137.303 ms 139.959 ms
10 12.122.149.225 (12.122.149.225) 143.022 ms 137.567 ms 137.573 ms
11 12.122.158.25 (12.122.158.25) 138.446 ms 137.435 ms 138.346 ms
12 * * *
13 99.134.39.24 (99.134.39.24) 136.686 ms 136.506 ms *
14 99.134.39.11 (99.134.39.11) 136.191 ms 136.211 ms 136.066 ms
15 99.161.44.77 (99.161.44.77) 137.461 ms 137.438 ms 138.025 ms
16 108-90-204-76.lightspeed.mtryca.sbcglobal.net (108.90.204.76) 157.627 ms 157.580 ms 157.980 ms
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
Remember if a server that should be visible externally, but isn't. Then outbound requests/replies will also fail.
my server is pingable at 10.0.0.101 & 108.220.213.121.
this with & without firewalld
--
Did 황준호 die?
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