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Forum Discussion
FVS336Gv2 dropping DNS packets >512 bytes
Hello, I have a new FVS336Gv2 and am having trouble getting DNS to resolve in a timely fashion through the router. Here is my setup: Mac OS Snow Leopard Server running LAN side DHCP and DNS. All...
mropers wrote:
Here are the DNS server logs from a recent DNS lookup:27-Apr-2011 19:10:05.563 createfetch: www.nytimes.com A
27-Apr-2011 19:10:10.563 createfetch: www.nytimes.com A
27-Apr-2011 19:10:10.699 host unreachable resolving 'www.nytimes.com/A/IN': 2001:503:231d::2:30#53
27-Apr-2011 19:10:15.563 createfetch: www.nytimes.com A
27-Apr-2011 19:10:21.668 host unreachable resolving 'www.nytimes.com/A/IN': 2001:503:a83e::2:30#53
27-Apr-2011 19:10:24.520 success resolving 'www.nytimes.com/A' (in 'com'?) after disabling EDNS
And corresponding FVS336Gv2 logs for same request:2011 Apr 27 19:10:25 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.55.83.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:24 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.52.178.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:23 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.31.80.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:22 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.26.92.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:21 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.43.172.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:20 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.42.93.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:19 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.54.112.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:19 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.41.162.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:18 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.48.79.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:17 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.12.94.30 PROTO=UDP SPT=53 DPT=53
2011 Apr 27 19:10:16 [FVS336GV2] [kernel] LAN2WAN[ACCEPT] IN=LAN OUT=WAN SRC=172.16.53.10 DST=192.35.51.30 PROTO=UDP SPT=53 DPT=53
Any other suggestions?
I'm seeing a similar problem.
I added DNS:TCP and DNS:UDP to AllowAll for outbound traffic.
I've tried to turn off EDNS in bind9 using "edns no;".
I've tried limited EDNS packet size to 512 bytes using "edns-udp-size 512;".
Nothing seems to fix this problem. Any suggestions?
Guy
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