Re: ax25ipd issue

[Bernard Pidoux <pidoux@ccr.jussieu.fr>]

Hi Steve,

I have two dynamic IP partners and would be glad to test your patch for 
ax25ipd.

Please feel free to send me your patch.

73 de Bernard, f6bvp


> Hi All,
> 
> Regarding the problem of IP addresses changing for AXIP links, Chuck 
> Hast wrote:
> 
>> Yes, we need to come up on a work around,  Stewart Wilkinson sent
>> me a set of scripts that kill and restart ax25ipd when they detect a
>> out of date address. Would be much better to figure out how to come
>> up with a solution that will get a new one and go from there. 
> 
> 
> I've done some changes to the code. I've altered it so that every five 
> minutes and after 10 seconds of inactivity (or every 15 minutes 
> regardless) the IP entries for all route lines that have hostnames 
> rather than IP numbers get requeried by DNS. (It would have been better 
> to use TTL's, but I couldnt find any way to get the TTL without a lot of 
> coding!)
> 
> Anyway, if you specify an IP number on a route line, then it's clearly 
> fixed. If you use a FQDN then the IP number may change, so is 
> re-checked. (If it is found to be invalid upon re-checking, the old IP 
> number is re-used).
> 
> I think this will work OK, (without the overhead of a DNS lookup of 
> every packet) but I dont have any partners who use dynamic dns, so I 
> guess I need a volunteer to try it out for me..........
> 
> Drop me a line if you'd like to try it out.
> 
> 73
> 
> Steve, vk5asf
> 
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