Date: Thu, 10 Dec 2009 23:07:26 -0500 From: Tom Pusateri <pusateri@bangj.com> To: "Li, Qing" <qing.li@bluecoat.com> Cc: freebsd-stable@freebsd.org Subject: Re: IPv6 - bad neighbor solicitation messages Message-ID: <F0C1EF08-2C9F-4CFF-B775-41A859AE0CC4@bangj.com> In-Reply-To: <B583FBF374231F4A89607B4D08578A430467374E@bcs-mail03.internal.cacheflow.com> References: <3E18B7A0-9391-47A2-B52D-24E44DDF1A33@bangj.com> <B583FBF374231F4A89607B4D08578A430467374E@bcs-mail03.internal.cacheflow.com>
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[-- Attachment #1 --]
Its been happening for a while.
I've attached the tcpdump textual output, the tcpdump raw saved file, and before and after netstat -s output.
Thanks,
Tom
On Dec 10, 2009, at 10:22 PM, Li, Qing wrote:
> I haven't made any significant changes in the IPv6 code
> for 3 months now. Could you please get a packet capture and
> email it to me?
>
> Thanks,
>
> -- Qing
[-- Attachment #2 --]
22:59:51.008261 IP6 (hlim 63, next-header ICMPv6 (58) payload length: 16) 2610:28:1800:4001:225:ff:fef1:7305 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, echo request, length 16, seq 0
22:59:51.008291 IP6 (hlim 64, next-header ICMPv6 (58) payload length: 16) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, echo reply, length 16, seq 0
22:59:52.562108 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:25:00:f1:73:05
22:59:52.562134 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override]
destination link-address option (2), length 8 (1): 00:a0:c9:45:32:6c
22:59:52.562382 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, redirect, length 120, 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305
redirected header option (4), length 80 (10):
0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe
0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c
0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305
0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001
0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c
22:59:53.562387 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:25:00:f1:73:05
22:59:53.562405 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override]
destination link-address option (2), length 8 (1): 00:a0:c9:45:32:6c
22:59:53.562556 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, redirect, length 120, 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305
redirected header option (4), length 80 (10):
0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe
0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c
0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305
0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001
0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c
22:59:54.562607 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:25:00:f1:73:05
22:59:54.562630 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override]
destination link-address option (2), length 8 (1): 00:a0:c9:45:32:6c
22:59:54.562770 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, redirect, length 120, 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305
redirected header option (4), length 80 (10):
0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe
0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c
0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305
0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001
0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c
22:59:56.008687 IP6 (hlim 63, next-header ICMPv6 (58) payload length: 16) 2610:28:1800:4001:225:ff:fef1:7305 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, echo request, length 16, seq 5
22:59:56.008704 IP6 (hlim 64, next-header ICMPv6 (58) payload length: 16) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, echo reply, length 16, seq 5
22:59:56.008825 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 104) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, redirect, length 104, 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305
redirected header option (4), length 64 (8):
0x0000: 0408 0000 0000 0000 6000 0000 0010 3a3f
0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c
0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305
0x0030: 8100 d5d9 0e94 0005 4b21 c3bb 000e 1c77
22:59:56.008837 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::2a0:c9ff:fe45:326c > fe80::20e:cff:fe74:9778: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::20e:cff:fe74:9778
source link-address option (1), length 8 (1): 00:a0:c9:45:32:6c
22:59:56.008947 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::20e:cff:fe74:9778 > fe80::2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fe80::20e:cff:fe74:9778, Flags [router, solicited]
22:59:56.009587 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001::1 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:0e:0c:74:97:78
22:59:57.009900 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001::1 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:0e:0c:74:97:78
22:59:57.563329 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:25:00:f1:73:05
22:59:57.563348 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override]
destination link-address option (2), length 8 (1): 00:a0:c9:45:32:6c
22:59:58.010222 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001::1 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:0e:0c:74:97:78
22:59:58.563549 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:25:00:f1:73:05
22:59:58.563565 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override]
destination link-address option (2), length 8 (1): 00:a0:c9:45:32:6c
22:59:58.563679 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, redirect, length 120, 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305
redirected header option (4), length 80 (10):
0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe
0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c
0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305
0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001
0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c
22:59:59.563828 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:25:00:f1:73:05
22:59:59.563846 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override]
destination link-address option (2), length 8 (1): 00:a0:c9:45:32:6c
22:59:59.564017 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::20e:cff:fe74:9778 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2610:28:1800:4001:2a0:c9ff:fe45:326c
source link-address option (1), length 8 (1): 00:0e:0c:74:97:78
22:59:59.564030 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::2a0:c9ff:fe45:326c > fe80::20e:cff:fe74:9778: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override]
destination link-address option (2), length 8 (1): 00:a0:c9:45:32:6c
22:59:59.564243 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, redirect, length 120, 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305
redirected header option (4), length 80 (10):
0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe
0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c
0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305
0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001
0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c
[-- Attachment #3 --]
[-- Attachment #4 --]
tcp:
261 packets sent
238 data packets (49512 bytes)
6 data packets (432 bytes) retransmitted
1 data packet unnecessarily retransmitted
0 resends initiated by MTU discovery
13 ack-only packets (5 delayed)
0 URG only packets
0 window probe packets
0 window update packets
4 control packets
370 packets received
229 acks (for 49517 bytes)
12 duplicate acks
0 acks for unsent data
130 packets (10535 bytes) received in-sequence
0 completely duplicate packets (0 bytes)
0 old duplicate packets
0 packets with some dup. data (0 bytes duped)
0 out-of-order packets (0 bytes)
0 packets (0 bytes) of data after window
0 window probes
1 window update packet
0 packets received after close
0 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
0 discarded due to memory problems
1 connection request
2 connection accepts
0 bad connection attempts
0 listen queue overflows
0 ignored RSTs in the windows
3 connections established (including accepts)
7 connections closed (including 0 drops)
3 connections updated cached RTT on close
3 connections updated cached RTT variance on close
2 connections updated cached ssthresh on close
0 embryonic connections dropped
229 segments updated rtt (of 155 attempts)
5 retransmit timeouts
0 connections dropped by rexmit timeout
0 persist timeouts
0 connections dropped by persist timeout
0 Connections (fin_wait_2) dropped because of timeout
0 keepalive timeouts
0 keepalive probes sent
0 connections dropped by keepalive
0 correct ACK header predictions
123 correct data packet header predictions
2 syncache entries added
0 retransmitted
1 dupsyn
0 dropped
2 completed
0 bucket overflow
0 cache overflow
0 reset
0 stale
0 aborted
0 badack
0 unreach
0 zone failures
2 cookies sent
0 cookies received
1 SACK recovery episode
1 segment rexmit in SACK recovery episodes
48 byte rexmits in SACK recovery episodes
8 SACK options (SACK blocks) received
0 SACK options (SACK blocks) sent
0 SACK scoreboard overflow
0 packets with ECN CE bit set
0 packets with ECN ECT(0) bit set
0 packets with ECN ECT(1) bit set
0 successful ECN handshakes
0 times ECN reduced the congestion window
udp:
637 datagrams received
0 with incomplete header
0 with bad data length field
0 with bad checksum
5 with no checksum
10 dropped due to no socket
221 broadcast/multicast datagrams undelivered
0 dropped due to full socket buffers
0 not for hashed pcb
406 delivered
178 datagrams output
0 times multicast source filter matched
sctp:
0 input packets
0 datagrams
0 packets that had data
0 input SACK chunks
0 input DATA chunks
0 duplicate DATA chunks
0 input HB chunks
0 HB-ACK chunks
0 input ECNE chunks
0 input AUTH chunks
0 chunks missing AUTH
0 invalid HMAC ids received
0 invalid secret ids received
0 auth failed
0 fast path receives all one chunk
0 fast path multi-part data
0 output packets
0 output SACKs
0 output DATA chunks
0 retransmitted DATA chunks
0 fast retransmitted DATA chunks
0 FR's that happened more than once to same chunk
0 intput HB chunks
0 output ECNE chunks
0 output AUTH chunks
0 ip_output error counter
Packet drop statistics:
0 from middle box
0 from end host
0 with data
0 non-data, non-endhost
0 non-endhost, bandwidth rep only
0 not enough for chunk header
0 not enough data to confirm
0 where process_chunk_drop said break
0 failed to find TSN
0 attempt reverse TSN lookup
0 e-host confirms zero-rwnd
0 midbox confirms no space
0 data did not match TSN
0 TSN's marked for Fast Retran
Timeouts:
5 iterator timers fired
0 T3 data time outs
0 window probe (T3) timers fired
0 INIT timers fired
0 sack timers fired
0 shutdown timers fired
0 heartbeat timers fired
0 a cookie timeout fired
0 an endpoint changed its cookiesecret
0 PMTU timers fired
0 shutdown ack timers fired
0 shutdown guard timers fired
0 stream reset timers fired
0 early FR timers fired
0 an asconf timer fired
0 auto close timer fired
0 asoc free timers expired
0 inp free timers expired
0 packet shorter than header
0 checksum error
0 no endpoint for port
0 bad v-tag
0 bad SID
0 no memory
0 number of multiple FR in a RTT window
0 RFC813 allowed sending
0 RFC813 does not allow sending
0 times max burst prohibited sending
0 look ahead tells us no memory in interface
0 numbers of window probes sent
0 times an output error to clamp down on next user send
0 times sctp_senderrors were caused from a user
0 number of in data drops due to chunk limit reached
0 number of in data drops due to rwnd limit reached
0 times a ECN reduced the cwnd
0 used express lookup via vtag
0 collision in express lookup
0 times the sender ran dry of user data on primary
0 same for above
0 sacks the slow way
0 window update only sacks sent
0 sends with sinfo_flags !=0
0 unordered sends
0 sends with EOF flag set
0 sends with ABORT flag set
0 times protocol drain called
0 times we did a protocol drain
0 times recv was called with peek
0 cached chunks used
0 cached stream oq's used
0 unread messages abandonded by close
0 send burst avoidance, already max burst inflight to net
0 send cwnd full avoidance, already max burst inflight to net
0 number of map array over-runs via fwd-tsn's
ip:
935 total packets received
0 bad header checksums
0 with size smaller than minimum
0 with data size < data length
0 with ip length > max ip packet size
0 with header length < data size
0 with data length < header length
0 with bad options
0 with incorrect version number
0 fragments received
0 fragments dropped (dup or out of space)
0 fragments dropped after timeout
0 packets reassembled ok
919 packets for this host
12 packets for unknown/unsupported protocol
0 packets forwarded (0 packets fast forwarded)
4 packets not forwardable
0 packets received for unknown multicast group
0 redirects sent
413 packets sent from this host
28 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
0 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can't be fragmented
0 tunneling packets that can't find gif
0 datagrams with bad address in header
icmp:
10 calls to icmp_error
0 errors not generated in response to an icmp message
Output histogram:
echo reply: 8
destination unreachable: 10
0 messages with bad code fields
0 messages less than the minimum length
0 messages with bad checksum
0 messages with bad length
0 multicast echo requests ignored
0 multicast timestamp requests ignored
Input histogram:
echo reply: 2
echo: 8
8 message responses generated
0 invalid return addresses
0 no return routes
ICMP address mask responses are disabled
igmp:
12 messages received
0 messages received with too few bytes
0 messages received with wrong TTL
0 messages received with bad checksum
0 V1/V2 membership queries received
0 V3 membership queries received
0 membership queries received with invalid field(s)
0 general queries received
0 group queries received
0 group-source queries received
0 group-source queries dropped
12 membership reports received
0 membership reports received with invalid field(s)
12 membership reports received for groups to which we belong
0 V3 reports received without Router Alert
2 membership reports sent
ip6:
392 total packets received
0 with size smaller than minimum
0 with data size < data length
0 with bad options
0 with incorrect version number
0 fragments received
0 fragments dropped (dup or out of space)
0 fragments dropped after timeout
0 fragments that exceeded limit
0 packets reassembled ok
108 packets for this host
0 packets forwarded
0 packets not forwardable
0 redirects sent
156 packets sent from this host
0 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
0 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can't be fragmented
0 packets that violated scope rules
6 multicast packets which we don't join
Input histogram:
UDP: 98
ICMP6: 294
Mbuf statistics:
35 one mbuf
two or more mbuf:
lo0= 24
333 one ext mbuf
0 two or more ext mbuf
0 packets whose headers are not continuous
0 tunneling packets that can't find gif
0 packets discarded because of too many headers
0 failures of source address selection
Source addresses selection rule applied:
70 first candidate
5 same address
62 appropriate scope
icmp6:
0 calls to icmp6_error
0 errors not generated in response to an icmp6 message
0 errors not generated because of rate limitation
Output histogram:
echo: 4
echo reply: 26
router solicitation: 3
neighbor solicitation: 8
neighbor advertisement: 55
MLDv2 listener report: 12
0 messages with bad code fields
0 messages < minimum length
0 bad checksums
0 messages with bad length
Input histogram:
echo: 26
echo reply: 4
router advertisement: 110
neighbor solicitation: 100
neighbor advertisement: 5
redirect: 43
Histogram of error messages to be generated:
0 no route
0 administratively prohibited
0 beyond scope
0 address unreachable
0 port unreachable
0 packet too big
0 time exceed transit
0 time exceed reassembly
0 erroneous header field
0 unrecognized next header
0 unrecognized option
0 redirect
0 unknown
26 message responses generated
0 messages with too many ND options
0 messages with bad ND options
45 bad neighbor solicitation messages
0 bad neighbor advertisement messages
0 bad router solicitation messages
0 bad router advertisement messages
0 bad redirect messages
0 path MTU changes
rip6:
0 messages received
0 checksum calculations on inbound
0 messages with bad checksum
0 messages dropped due to no socket
0 multicast messages dropped due to no socket
0 messages dropped due to full socket buffers
0 delivered
0 datagrams output
[-- Attachment #5 --]
[-- Attachment #6 --]
tcp:
261 packets sent
238 data packets (49512 bytes)
6 data packets (432 bytes) retransmitted
1 data packet unnecessarily retransmitted
0 resends initiated by MTU discovery
13 ack-only packets (5 delayed)
0 URG only packets
0 window probe packets
0 window update packets
4 control packets
370 packets received
229 acks (for 49517 bytes)
12 duplicate acks
0 acks for unsent data
130 packets (10535 bytes) received in-sequence
0 completely duplicate packets (0 bytes)
0 old duplicate packets
0 packets with some dup. data (0 bytes duped)
0 out-of-order packets (0 bytes)
0 packets (0 bytes) of data after window
0 window probes
1 window update packet
0 packets received after close
0 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
0 discarded due to memory problems
1 connection request
2 connection accepts
0 bad connection attempts
0 listen queue overflows
0 ignored RSTs in the windows
3 connections established (including accepts)
7 connections closed (including 0 drops)
3 connections updated cached RTT on close
3 connections updated cached RTT variance on close
2 connections updated cached ssthresh on close
0 embryonic connections dropped
229 segments updated rtt (of 155 attempts)
5 retransmit timeouts
0 connections dropped by rexmit timeout
0 persist timeouts
0 connections dropped by persist timeout
0 Connections (fin_wait_2) dropped because of timeout
0 keepalive timeouts
0 keepalive probes sent
0 connections dropped by keepalive
0 correct ACK header predictions
123 correct data packet header predictions
2 syncache entries added
0 retransmitted
1 dupsyn
0 dropped
2 completed
0 bucket overflow
0 cache overflow
0 reset
0 stale
0 aborted
0 badack
0 unreach
0 zone failures
2 cookies sent
0 cookies received
1 SACK recovery episode
1 segment rexmit in SACK recovery episodes
48 byte rexmits in SACK recovery episodes
8 SACK options (SACK blocks) received
0 SACK options (SACK blocks) sent
0 SACK scoreboard overflow
0 packets with ECN CE bit set
0 packets with ECN ECT(0) bit set
0 packets with ECN ECT(1) bit set
0 successful ECN handshakes
0 times ECN reduced the congestion window
udp:
647 datagrams received
0 with incomplete header
0 with bad data length field
0 with bad checksum
5 with no checksum
10 dropped due to no socket
231 broadcast/multicast datagrams undelivered
0 dropped due to full socket buffers
0 not for hashed pcb
406 delivered
178 datagrams output
0 times multicast source filter matched
sctp:
0 input packets
0 datagrams
0 packets that had data
0 input SACK chunks
0 input DATA chunks
0 duplicate DATA chunks
0 input HB chunks
0 HB-ACK chunks
0 input ECNE chunks
0 input AUTH chunks
0 chunks missing AUTH
0 invalid HMAC ids received
0 invalid secret ids received
0 auth failed
0 fast path receives all one chunk
0 fast path multi-part data
0 output packets
0 output SACKs
0 output DATA chunks
0 retransmitted DATA chunks
0 fast retransmitted DATA chunks
0 FR's that happened more than once to same chunk
0 intput HB chunks
0 output ECNE chunks
0 output AUTH chunks
0 ip_output error counter
Packet drop statistics:
0 from middle box
0 from end host
0 with data
0 non-data, non-endhost
0 non-endhost, bandwidth rep only
0 not enough for chunk header
0 not enough data to confirm
0 where process_chunk_drop said break
0 failed to find TSN
0 attempt reverse TSN lookup
0 e-host confirms zero-rwnd
0 midbox confirms no space
0 data did not match TSN
0 TSN's marked for Fast Retran
Timeouts:
5 iterator timers fired
0 T3 data time outs
0 window probe (T3) timers fired
0 INIT timers fired
0 sack timers fired
0 shutdown timers fired
0 heartbeat timers fired
0 a cookie timeout fired
0 an endpoint changed its cookiesecret
0 PMTU timers fired
0 shutdown ack timers fired
0 shutdown guard timers fired
0 stream reset timers fired
0 early FR timers fired
0 an asconf timer fired
0 auto close timer fired
0 asoc free timers expired
0 inp free timers expired
0 packet shorter than header
0 checksum error
0 no endpoint for port
0 bad v-tag
0 bad SID
0 no memory
0 number of multiple FR in a RTT window
0 RFC813 allowed sending
0 RFC813 does not allow sending
0 times max burst prohibited sending
0 look ahead tells us no memory in interface
0 numbers of window probes sent
0 times an output error to clamp down on next user send
0 times sctp_senderrors were caused from a user
0 number of in data drops due to chunk limit reached
0 number of in data drops due to rwnd limit reached
0 times a ECN reduced the cwnd
0 used express lookup via vtag
0 collision in express lookup
0 times the sender ran dry of user data on primary
0 same for above
0 sacks the slow way
0 window update only sacks sent
0 sends with sinfo_flags !=0
0 unordered sends
0 sends with EOF flag set
0 sends with ABORT flag set
0 times protocol drain called
0 times we did a protocol drain
0 times recv was called with peek
0 cached chunks used
0 cached stream oq's used
0 unread messages abandonded by close
0 send burst avoidance, already max burst inflight to net
0 send cwnd full avoidance, already max burst inflight to net
0 number of map array over-runs via fwd-tsn's
ip:
945 total packets received
0 bad header checksums
0 with size smaller than minimum
0 with data size < data length
0 with ip length > max ip packet size
0 with header length < data size
0 with data length < header length
0 with bad options
0 with incorrect version number
0 fragments received
0 fragments dropped (dup or out of space)
0 fragments dropped after timeout
0 packets reassembled ok
929 packets for this host
12 packets for unknown/unsupported protocol
0 packets forwarded (0 packets fast forwarded)
4 packets not forwardable
0 packets received for unknown multicast group
0 redirects sent
413 packets sent from this host
28 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
0 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can't be fragmented
0 tunneling packets that can't find gif
0 datagrams with bad address in header
icmp:
10 calls to icmp_error
0 errors not generated in response to an icmp message
Output histogram:
echo reply: 8
destination unreachable: 10
0 messages with bad code fields
0 messages less than the minimum length
0 messages with bad checksum
0 messages with bad length
0 multicast echo requests ignored
0 multicast timestamp requests ignored
Input histogram:
echo reply: 2
echo: 8
8 message responses generated
0 invalid return addresses
0 no return routes
ICMP address mask responses are disabled
igmp:
12 messages received
0 messages received with too few bytes
0 messages received with wrong TTL
0 messages received with bad checksum
0 V1/V2 membership queries received
0 V3 membership queries received
0 membership queries received with invalid field(s)
0 general queries received
0 group queries received
0 group-source queries received
0 group-source queries dropped
12 membership reports received
0 membership reports received with invalid field(s)
12 membership reports received for groups to which we belong
0 V3 reports received without Router Alert
2 membership reports sent
ip6:
412 total packets received
0 with size smaller than minimum
0 with data size < data length
0 with bad options
0 with incorrect version number
0 fragments received
0 fragments dropped (dup or out of space)
0 fragments dropped after timeout
0 fragments that exceeded limit
0 packets reassembled ok
108 packets for this host
0 packets forwarded
0 packets not forwardable
0 redirects sent
167 packets sent from this host
0 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
0 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can't be fragmented
0 packets that violated scope rules
6 multicast packets which we don't join
Input histogram:
UDP: 98
ICMP6: 314
Mbuf statistics:
35 one mbuf
two or more mbuf:
lo0= 24
353 one ext mbuf
0 two or more ext mbuf
0 packets whose headers are not continuous
0 tunneling packets that can't find gif
0 packets discarded because of too many headers
0 failures of source address selection
Source addresses selection rule applied:
79 first candidate
5 same address
71 appropriate scope
icmp6:
0 calls to icmp6_error
0 errors not generated in response to an icmp6 message
0 errors not generated because of rate limitation
Output histogram:
echo: 4
echo reply: 28
router solicitation: 3
neighbor solicitation: 9
neighbor advertisement: 63
MLDv2 listener report: 12
0 messages with bad code fields
0 messages < minimum length
0 bad checksums
0 messages with bad length
Input histogram:
echo: 28
echo reply: 4
router advertisement: 110
neighbor solicitation: 111
neighbor advertisement: 6
redirect: 49
Histogram of error messages to be generated:
0 no route
0 administratively prohibited
0 beyond scope
0 address unreachable
0 port unreachable
0 packet too big
0 time exceed transit
0 time exceed reassembly
0 erroneous header field
0 unrecognized next header
0 unrecognized option
0 redirect
0 unknown
28 message responses generated
0 messages with too many ND options
0 messages with bad ND options
48 bad neighbor solicitation messages
0 bad neighbor advertisement messages
0 bad router solicitation messages
0 bad router advertisement messages
0 bad redirect messages
0 path MTU changes
rip6:
0 messages received
0 checksum calculations on inbound
0 messages with bad checksum
0 messages dropped due to no socket
0 multicast messages dropped due to no socket
0 messages dropped due to full socket buffers
0 delivered
0 datagrams output
[-- Attachment #7 --]
[-- Attachment #8 --]
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help
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