our isp not supports EDNS?

Jeff Pang PANGJ at arcor.de
Tue May 4 02:27:13 UTC 2010


Hello,

Following the discussions in the list, I made a test on one of our
servers, which is in an ISP's datacenter.

The result is below:

$ dig +short rs.dns-oarc.net txt
rst.x476.rs.dns-oarc.net.
rst.x485.x476.rs.dns-oarc.net.
rst.x490.x485.x476.rs.dns-oarc.net.
"218.204.255.72 DNS reply size limit is at least 490"
"218.204.255.72 lacks EDNS, defaults to 512"
"Tested at 2010-05-04 02:23:51 UTC"


Does this mean our ISP's filrewall block EDNS query/response?

Thanks.



More information about the bind-users mailing list