On 22 Aug 2021, at 07:34, R P via 44Net 44net@mailman.ampr.org wrote:
Hi there My gateway (44.138.1.1) tunnel get the commercial IP host name from no-ip.com and the UCSD router use this name to resolve the IP and make tunnel to it since it use dynamic IP every time that this hos is in some reason not resolvable the UCSD takes it out from the routing table and i get no route to it anymore Even when the host is resolvable again the only solution is to write Chris and ask him to fix it for me
There seems to be some misunderstanding in how the gateway system works for dynamic hosts, allow me to explain:
If a gateway entry on the Portal does NOT have a hostname set, i.e. it only has an IP address specified, then it is always included in the encap file and no further checks are carried out.
If a gateway entry on the Portal has a hostname set, the Portal tries to resolve the hostname every 5 minutes.
If the name resolution fails the gateway entry is disabled and it will not be included in the next build of the encap file.
If name resolution succeeds it then checks that the IP address is a valid, publicly routable IP, if this check fails (e.g. the IP resolves to a RFC1918 IP), the gateway is disabled and will not be included in the next build of the encap file.
Only if the name resolution succeeds and the resulting IP is a valid, publicly route address, does it include the gateway in the next build of the encap file.
The 5 minute check includes any previously disabled gateways and if the name resolution subsequently succeeds, the gateway is automatically re-enabled and included in the encap file.
Has anyone seen this thing at his system ? Is there any thing i can do to make the route back ? Or (prefered) can any mechanism be add to ucsd that when a certain host get resolved again the route will come back without any intervention by human ?
The problem seems to be with resolving the hostname, there are a regular list of gateways that constantly fail. Here is the latest list from a few minutes ago, if your gateway is on the list you might want to check your hostname is correct and resolvable:
WARNING: DNS Failure on host: gilboa-gw.ddns.net WARNING: DNS Failure on host: Radio.logantarvit.tech WARNING: DNS Failure on host: raspi15.webhop.me WARNING: DNS Failure on host: gateway.greyponyit.com WARNING: DNS Failure on host: myhome.tvlinux.com WARNING: DNS Failure on host: ampr.w1lms.net WARNING: DNS Failure on host: ku7pdx.hamshack.info WARNING: DNS Failure on host: rdsninja.ddns.net WARNING: DNS Failure on host: kd7gsw.mooo.com WARNING: DNS Failure on host: dwarves.dyndns.org WARNING: DNS Failure on host: n7fyo.webhop.me WARNING: DNS Failure on host: n9tubbs.ddns.net WARNING: DNS Failure on host: k0hyt.ddns.net WARNING: DNS Failure on host: hotandspicy.chickenkiller.com WARNING: DNS Failure on host: amprnet.m0nzo.uk WARNING: DNS Failure on host: flashtek.likes-pie.com WARNING: DNS Failure on host: m1cqo.ddns.net WARNING: DNS Failure on host: va7dgp.no-ip.biz WARNING: DNS Failure on host: gate-pld.lz1ete.com WARNING: DNS Failure on host: gate-pst.lz1ete.com WARNING: DNS Failure on host: agw1.w2mat.net WARNING: DNS Failure on host: f4gkn.zapto.org WARNING: DNS Failure on host: tserv.taowa.ca WARNING: DNS Failure on host: amprgw.ah2s.org WARNING: DNS Failure on host: carl.homeip.net WARNING: DNS Failure on host: ampr44.kg5zi.us WARNING: DNS Failure on host: kb9mwr.org WARNING: DNS Failure on host: ne2i.dynns.com WARNING: DNS Failure on host: ampr.hamradioonline.net WARNING: DNS Failure on host: yh8agb.ddns.net WARNING: DNS Failure on host: lu7did.dyndns.org WARNING: DNS Failure on host: ve7wwd.ddns.net WARNING: DNS Failure on host: gw.ampr.m0nfe.com WARNING: DNS Failure on host: py3nz.no-ip.org WARNING: DNS Failure on host: lu7dbl.dyndns.org WARNING: DNS Failure on host: ay8011.myfoscam.org WARNING: DNS Failure on host: ve7hme.ddns.net WARNING: DNS Failure on host: ipip.hamnet.ca
73, Chris - G1FEF
Any help welcome .. Regards Ronen - 4Z4ZQ http://www.ronen.org
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