On 2/26/20 8:13 PM, Bruce Bannerman wrote: > Hello Tom, > > Many thanks for your help sorting out my issue. > > The problem that I was experiencing appears to have been caused by a > dodgy modem/router. > > Once I replaced the modem/router, my incoming and outgoing connections > are working fine. > > > > For others: > > * In my case, the connectivity issues were interspersed in the log > file with martian destination messages such as: > > > ===== > Feb 21 10:16:06 fw kernel: [173036.380121] IPv4: martian destination > 0.0.0.0 from 49.199.143.136, dev eth0 > ===== > > * I did extensive searching for 'martian destination’ posts on the > web, but found very little information on their cause. > > > * The best explanation for ‘martian destination’ messages that I have > seen to date, came from Tom Eastep. In my case: > > > ===== > The (‘martian destination’) packets are coming from your laptop, but it > appears that the > modem/router is mangling them (setting destination IP to 0.0.0.0). > Note that if your laptop would have actually sent such packets, they > would have never reached your on-prem modem/router. Messages like the > above indicate that the packets are being dropped by the Linux IP stack. > ===== > > * After replacing my external modem/router all is OK and I have not > received any more such messages to date. > > > > Kind regards, > > Bruce Bannerman
Thanks, Bruce. Glad that your issue is resolved. -Tom -- Tom Eastep \ Q: What do you get when you cross a mobster Shoreline, \ with an international standard? Washington, USA \ A: Someone who makes you an offer you http://shorewall.org \ can't understand \________________________________________
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