RC5:
root@Securezza:~# nslookup vpn.corbina.net
Server:     ns.corbina.net
Address:    195.14.50.1

Name:       vpn.corbina.net
Address:    195.14.38.20

RC6:
root@OpenWrt:/etc# nslookup corbina.net
Server:     ns.corbina.net
Address:    195.14.50.1

Name:       corbina.net
Address:    85.21.29.242

root@OpenWrt:/etc# nslookup vpn.corbina.net
Server:     ns.corbina.net
Address:    195.14.50.1

nslookup: vpn.corbina.net: Resolver error

What's the matter?

well the nameservers for each domain seem to respond correctly. try testing with a tool like dig against your local nameserver and a few remote ones to see if you can pin down an error there.

otherwise, the only thing that stands out is that vpn.corbina.net resolves to 23 different addresses (nothing inherently wrong with that)

No errors anywhere. RC5 can resolve vpn.corbina.net, RC6 (and the latest DD-WRT too) can't. That seems to be a BUG.

the server actually has 23 or near adresses, yes, nothing wrong.

And, of course, "vpn.corbina.net" can't be pinged out of RC6. While it has round-robin balancing, it's very undesired to write IP's instead of "vpn.corbina.net".

The same is with "vpn.corbina.ru" (just an alias).

I point you all to the obvious bug, but nobody reacts...

And I guess nobody will. They've all moved to kamikaze ;-)

Mozos from some russian forum says:

1. uClibc library 0.9.26 in RC5 gives only 1 address per gethostbyname().
2. 0.9.28 was enhanced - it can give near 20 addresses (this version is used in DD-WRT SP23).
3. Improvement is defected: if NAME:Quantity of addresses> 22-23, it returns error (resolver error).
4. RC6 uses defectly improved vesion.
5. AND POSSIBLE KAMIKADZE TOO.
6. uClibc sources need to be patched.

What next?

(Last edited by tvg on 19 May 2007, 11:48)

I think you should post this question in Kamikaze discussion forum and see what they say. I'm still using RC5 with Corbina and fortunately don't encounter this problem.

So don't upgrade to RC5 (and DD-WRT, and kamikadze I think). You'll not be able to ping vpn.corbina.net and connect it using name (not numerical) notation.