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Old 17th September 2015
mbw's Avatar
mbw mbw is offline
Port Guard
 
Join Date: May 2010
Location: Seattle, WA
Posts: 13
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Thank - I've been away since OpenBSD is so stable - no questions for a long time!

Heres the results of those commands - anything leap out at you?



[oBSD55: firewall:~ ] $ netstat -ivm
160 mbufs in use:
151 mbufs allocated to data
3 mbufs allocated to packet headers
6 mbufs allocated to socket names and addresses
150/530/6144 mbuf 2048 byte clusters in use (current/peak/max)
0/8/6144 mbuf 4096 byte clusters in use (current/peak/max)
0/8/6144 mbuf 8192 byte clusters in use (current/peak/max)
0/8/6144 mbuf 9216 byte clusters in use (current/peak/max)
0/8/6144 mbuf 12288 byte clusters in use (current/peak/max)
0/8/6144 mbuf 16384 byte clusters in use (current/peak/max)
0/8/6144 mbuf 65536 byte clusters in use (current/peak/max)
1408 Kbytes allocated to network (24% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
[oBSD55: firewall:~ ] $ netstat -s
ip:
109127232 total packets received
0 bad header checksums
0 with size smaller than minimum
0 with data size < data length
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 (duplicates or out of space)
0 malformed fragments dropped
0 fragments dropped after timeout
0 packets reassembled ok
230690 packets for this host
53 packets for unknown/unsupported protocol
0 packets forwarded
21634680 packets not forwardable
0 redirects sent
1413320 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
91 output datagrams fragmented
91 fragments created
0 datagrams that can't be fragmented
0 fragment floods
0 packets with ip length > max ip packet size
0 tunneling packets that can't find gif
0 datagrams with bad address in header
1295 input datagrams software-checksummed
516933441201 output datagrams software-checksummed
29520517 multicast packets which we don't join
icmp:
61131523 calls to icmp_error
0 errors not generated because old message was icmp
666 errors not generated because of rate limitation
Output packet histogram:
echo reply: 45599
destination unreachable: 657798
0 messages with bad code fields
0 messages < minimum length
0 bad checksums
0 messages with bad length
0 echo requests to broadcast/multicast rejected
Input packet histogram:
echo reply: 29
destination unreachable: 55
echo: 45599
45599 message responses generated
igmp:
0 messages received
0 messages received with too few bytes
0 messages received with bad checksum
0 membership queries received
0 membership queries received with invalid field(s)
0 membership reports received
0 membership reports received with invalid field(s)
0 membership reports received for groups to which we belong
0 membership reports sent
ipencap:
0 total input packets
0 total output packets
0 packets shorter than header shows
0 packets dropped due to policy
0 packets with possibly spoofed local addresses
0 packets were dropped due to full output queue
0 input bytes
0 output bytes
0 protocol family mismatches
0 attempts to use tunnel with unspecified endpoint(s)
tcp:
54832 packets sent
53604 data packets (48268549 bytes)
3 data packets (288 bytes) retransmitted
0 fast retransmitted packets
1080 ack-only packets (14389 delayed)
0 URG only packets
0 window probe packets
18 window update packets
128 control packets
632674775 packets software-checksummed
50890 packets received
38433 acks (for 48268337 bytes)
76 duplicate acks
0 acks for unsent data
0 acks for old data
15216 packets (714253 bytes) received in-sequence
15 completely duplicate packets (1272 bytes)
0 old duplicate packets
0 packets with some duplicate data (0 bytes duplicated)
59 out-of-order packets (960 bytes)
0 packets (0 bytes) of data after window
0 window probes
3663 window update packets
0 packets received after close
305 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
0 discarded for missing IPsec protection
0 discarded due to memory shortage
1574 packets software-checksummed
0 bad/missing md5 checksums
0 good md5 checksums
40 connection requests
53 connection accepts
89 connections established (including accepts)
1027 connections closed (including 0 drops)
0 connections drained
4 embryonic connections dropped
38466 segments updated rtt (of 26172 attempts)
4 retransmit timeouts
0 connections dropped by rexmit timeout
0 persist timeouts
12 keepalive timeouts
12 keepalive probes sent
0 connections dropped by keepalive
10504 correct ACK header predictions
7569 correct data packet header predictions
114 PCB cache misses
0 ECN connections accepted
0 ECE packets received
0 CWR packets received
0 CE packets received
0 ECT packets sent
0 ECE packets sent
0 CWR packets sent
cwr by fastrecovery: 0
cwr by timeout: 4
cwr by ecn: 0
0 bad connection attempts
58 SYN cache entries added
0 hash collisions
53 completed
0 aborted (no space to build PCB)
5 timed out
0 dropped due to overflow
0 dropped due to bucket overflow
0 dropped due to RST
0 dropped due to ICMP unreachable
20 SYN,ACKs retransmitted
0 duplicate SYNs received for entries already in the cache
0 SYNs dropped (no route or no space)
0 SACK recovery episodes
0 segment rexmits in SACK recovery episodes
0 byte rexmits in SACK recovery episodes
3 SACK options received
14 SACK options sent
udp:
134179 datagrams received
0 with incomplete header
0 with bad data length field
0 with bad checksum
0 with no checksum
36 input packets software-checksummed
12321 output packets software-checksummed
121914 dropped due to no socket
121967 broadcast/multicast datagrams dropped due to no socket
0 dropped due to missing IPsec protection
0 dropped due to full socket buffers
18446744073709441914 delivered
12330 datagrams output
121934 missed PCB cache
esp:
0 input ESP packets
0 output ESP packets
0 packets from unsupported protocol families
0 packets shorter than header shows
0 packets dropped due to policy
0 packets for which no TDB was found
0 input packets that failed to be processed
0 packets with bad encryption received
0 packets that failed verification received
0 packets for which no XFORM was set in TDB received
0 packets were dropped due to full output queue
0 packets where counter wrapping was detected
0 possibly replayed packets received
0 packets with bad payload size or padding received
0 packets attempted to use an invalid TDB
0 packets got larger than max IP packet size
0 packets that failed crypto processing
0 input UDP encapsulated ESP packets
0 output UDP encapsulated ESP packets
0 UDP packets for non-encapsulating TDB received
0 input bytes
0 output bytes
ah:
0 input AH packets
0 output AH packets
0 packets from unsupported protocol families
0 packets shorter than header shows
0 packets dropped due to policy
0 packets for which no TDB was found
0 input packets that failed to be processed
0 packets that failed verification received
0 packets for which no XFORM was set in TDB received
0 packets were dropped due to full output queue
0 packets where counter wrapping was detected
0 possibly replayed packets received
0 packets with bad authenticator length received
0 packets attempted to use an invalid TDB
0 packets got larger than max IP packet size
0 packets that failed crypto processing
0 input bytes
0 output bytes
etherip:
0 packets shorter than header shows
0 packets were dropped due to full output queue
0 packets were dropped because of no interface/bridge information
0 packets dropped due to policy
0 packets dropped for other reasons
0 input ethernet-in-IP packets
0 output ethernet-in-IP packets
0 input bytes
0 output bytes
ipcomp:
0 input IPCOMP packets
0 output IPCOMP packets
0 packets from unsupported protocol families
0 packets shorter than header shows
0 packets dropped due to policy
0 packets for which no TDB was found
0 input packets that failed to be processed
0 packets for which no XFORM was set in TDB received
0 packets were dropped due to full output queue
0 packets where counter wrapping was detected
0 packets attempted to use an invalid TDB
0 packets got larger than max IP packet size
0 packets that failed (de)compression processing
0 packets less than minimum compression length
0 input bytes
0 output bytes
carp:
0 packets received (IPv4)
0 packets received (IPv6)
0 packets discarded for bad interface
0 packets discarded for wrong TTL
0 packets shorter than header
0 discarded for bad checksums
0 discarded packets with a bad version
0 discarded because packet too short
0 discarded for bad authentication
0 discarded for unknown vhid
0 discarded because of a bad address list
0 packets sent (IPv4)
0 packets sent (IPv6)
0 send failed due to mbuf memory error
0 transitions to master
pfsync:
0 packets received (IPv4)
0 packets received (IPv6)
0 packets discarded for bad interface
0 packets discarded for bad ttl
0 packets shorter than header
0 packets discarded for bad version
0 packets discarded for bad HMAC
0 packets discarded for bad action
0 packets discarded for short packet
0 states discarded for bad values
0 stale states
0 failed state lookup/inserts
0 packets sent (IPv4)
0 packets sent (IPv6)
0 send failed due to mbuf memory error
0 send error
divert:
0 total packets received
0 dropped due to no socket
0 dropped due to full socket buffers
0 packets output
0 errors
pflow:
0 flows sent
0 packets sent
0 send failed due to mbuf memory error
0 send error
ip6:
2668645 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 (duplicates or out of space)
0 fragments dropped after timeout
0 fragments that exceeded limit
0 packets reassembled ok
0 packets for this host
0 packets forwarded
0 packets not forwardable
0 redirects sent
19 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
0 multicast packets which we don't join
Input packet histogram:
hop by hop: 544
UDP: 2667834
ICMP6: 267
Mbuf statistics:
0 one mbufs
2668645 one ext mbufs
0 two or more ext mbufs
0 tunneling packets that can't find gif
0 packets discarded due to too many headers
0 failures of source address selection
0 forward cache hit
0 forward cache miss
divert6:
0 total packets received
0 dropped due to no socket
0 dropped due to full socket buffers
0 packets output
0 errors
icmp6:
5337265 calls to icmp6_error
0 errors not generated because old message was icmp6 or so
0 errors not generated because of rate limitation
Output packet histogram:
multicast listener report: 16
neighbor solicitation: 3
0 messages with bad code fields
0 messages < minimum length
0 bad checksums
0 messages with bad length
Histogram of error messages to be generated:
0 no route
0 administratively prohibited
0 beyond scope
0 address unreachable
5337265 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
0 message responses generated
0 messages with too many ND options
0 messages with bad ND options
0 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
pim6:
0 messages received
0 messages received with too few bytes
0 messages received with bad checksum
0 messages received with bad version
0 registers received
0 bad registers received
0 registers sent
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
[oBSD55:Thu Sep 17

Theres some suspicious looking UDP and ICMP section metrics there.... but not sure what I am looking at.
Care to enlighten me?

my pf.conf blocks all ipv6 as far as I know, BTW


Thanks for lookin'

- Matt
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