On Thu, Jun 28, 2007 at 09:34:18PM +0200, Max Laier wrote:
> On Thursday 28 June 2007, Hugo Koji Kobayashi wrote:
> > On Thu, Jun 28, 2007 at 07:19:25PM +0200, Max Laier wrote:
> > dig @a.ns.se se dnskey +dnssec +bufsize=4500
> >
> > This query is supposed to receive a DNS answer of more than 4KB.
>
> See the attached script I did just now.
>
> The only thing common about your setup seems to be the bge(4) NIC. Can
> you try disabling hardware checksumming (ifconfig -txcsum -rxcsum)? My
> test is over a hardware checksumming fxp(4) card, though.
It worked when disabling hardware checksumming:
fbsd7# ifconfig bge0
bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
ether 00:12:3f:15:36:7d
inet 200.160.3.113 netmask 0xffffffc0 broadcast 200.160.3.127
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
fbsd7# dig @a.ns.se se dnskey +dnssec +bufsize=4500
; <<>> DiG 9.4.1 <<>> @a.ns.se se dnskey +dnssec +bufsize=4500
; (2 servers found)
;; global options: printcmd
;; connection timed out; no servers could be reached
fbsd7# ifconfig bge0 -txcsum
fbsd7# ifconfig bge0
bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=98<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
ether 00:12:3f:15:36:7d
inet 200.160.3.113 netmask 0xffffffc0 broadcast 200.160.3.127
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
fbsd7# dig @a.ns.se se dnskey +dnssec +bufsize=4500 | tail -5
;; Query time: 243 msec
;; SERVER: 192.36.144.107#53(192.36.144.107)
;; WHEN: Thu Jun 28 16:46:49 2007
;; MSG SIZE rcvd: 4088
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