Re: [BUG] sky2 broken for Yukon PCI-E Gigabit Ethernet Controller11ab:4362 (rev 19)

From: Knut Petersen
Date: Fri Jan 27 2006 - 01:07:56 EST

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* Herbert Xu wrote:

Does the problem go away if you disable conntrack by unloading its module?

Please try to capture the offending ICMP packet with tcpdump and show us
what it looks like.

Well, there are no problems if SuSEfirewall2 is disabled. But have a look
at the loaded modules:

ipt_MASQUERADE 3968 1
pppoe 15360 2
pppox 4616 1 pppoe
af_packet 23240 2
ppp_generic 30740 6 pppoe,pppox
slhc 7040 1 ppp_generic
ipt_TOS 2816 28
ipt_TCPMSS 4800 2
ipt_LOG 7232 55
ipt_limit 2880 55
ipt_pkttype 1984 4
ipt_state 2240 46
ip6t_LOG 8000 1
ip6t_limit 3008 1
ip6t_REJECT 5824 3
ipt_REJECT 5952 3
iptable_mangle 3200 1
iptable_nat 8836 1
iptable_filter 3264 1
ip6table_mangle 2752 0
ip_nat_ftp 3776 0
ip_nat 18284 3 ipt_MASQUERADE,iptable_nat,ip_nat_ftp
ip_conntrack_ftp 8240 1 ip_nat_ftp
ip_conntrack 51020 6 ipt_MASQUERADE,ipt_state,iptable_nat,ip_nat_ftp,ip_nat,ip_conntrack_ftp
ip_tables 24088 11 ipt_MASQUERADE,ipt_TOS,ipt_TCPMSS,ipt_LOG,ipt_limit,ipt_pkttype,ipt_state,ipt_REJECT,iptable_mangle,iptable_nat,iptable_filter
ip6table_filter 3136 1
ip6_tables 25624 5 ip6t_LOG,ip6t_limit,ip6t_REJECT,ip6table_mangle,ip6table_filter
ipv6 271712 14 ip6t_REJECT

How should I unload ip_conntrack alone?

* Stephen Hemminger wrote:

Does it always show up on icmp only?

What are the iptables rules (iptables -L)

As far as I can see, all my sky2 problems are gone with -K rx off.

So here is more information. I executed the following script:

logger Starting test
logger "Executing ethtool -K eth0 rx off"
ethtool -K eth0 rx off
logger "Executing tcpdump -i eth0 -vv > tcpdumpfile &"
tcpdump -i eth0 -vv > tcpdumpfile &
logger "Executing host www.suse.com"
host www.suse.com
logger "Sleeping 2 seconds"
sleep 2 logger "Executing ping -c 2 195.135.220.3"
ping -c 2 195.135.220.3
logger "Sleeping 2 seconds"
sleep 2
logger "Executing ethtool -K eth0 rx on"
ethtool -K eth0 rx on
logger "Sleeping 2 seconds"
sleep 2 logger "Executing host www.suse.com"
host www.suse.com
logger "Sleeping 2 seconds"
sleep 2 logger "Executing ping -c 2 195.135.220.3"
ping -c 2 195.135.220.3
logger "Sleeping 2 seconds"
sleep 2 logger "Executing ethtool -K eth0 rx off"
ethtool -K eth0 rx off
logger "Sleeping 2 seconds"
sleep 2 logger "killall tcpdump"
killall tcpdump
logger End of test

The first host and ping worked fine, after the ethtool -K eth0 rx on
the host www.suse.com timed out with

;; connection timed out; no servers could be reached

and the ping 195.135.220.3 provoked the stack traces you see in sky2syslog.

I attach the syslog for the time of the test, the output of iptables -L and the
output of tcpdump as the very long lines included would be hard to read
with linebreaks.

No, I did _not_ delete anything from the tcpdump file.

cu,
Knut

Jan 27 06:29:38 linux knut: Starting test
Jan 27 06:29:38 linux knut: Executing ethtool -K eth0 rx off
Jan 27 06:29:38 linux knut: Executing tcpdump -i eth0 -vv > tcpdumpfile &
Jan 27 06:29:38 linux knut: Executing host www.suse.com
Jan 27 06:29:38 linux kernel: [ 403.606906] device eth0 entered promiscuous mode
Jan 27 06:29:38 linux knut: Sleeping 2 seconds
Jan 27 06:29:40 linux knut: Executing ping -c 2 195.135.220.3
Jan 27 06:29:41 linux dhcpd: icmp.c(274): trace_write_packet with null trace type
Jan 27 06:29:42 linux dhcpd: icmp.c(274): trace_write_packet with null trace type
Jan 27 06:29:42 linux knut: Sleeping 2 seconds
Jan 27 06:29:44 linux knut: Executing ethtool -K eth0 rx on
Jan 27 06:29:44 linux knut: Sleeping 2 seconds
Jan 27 06:29:46 linux knut: Executing host www.suse.com
Jan 27 06:29:46 linux kernel: [ 406.693484] SFW2-INext-DROP-DEFLT-INV IN=dsl0 OUT= MAC= SRC=217.237.150.33 DST=84.171.112.100 LEN=74 TOS=0x10 PREC=0x00 TTL=57 ID=53333 PROTO=UDP SPT=53 DPT=1076 LEN=54
Jan 27 06:29:47 linux kernel: [ 407.125112] SFW2-INext-DROP-DEFLT-INV IN=dsl0 OUT= MAC= SRC=217.237.150.33 DST=84.171.112.100 LEN=116 TOS=0x10 PREC=0x00 TTL=57 ID=24213 PROTO=UDP SPT=53 DPT=1078 LEN=96
Jan 27 06:29:58 linux knut: Sleeping 2 seconds
Jan 27 06:30:00 linux knut: Executing ping -c 2 195.135.220.3
Jan 27 06:30:00 linux kernel: [ 412.693613] dsl0: hw csum failure.
Jan 27 06:30:00 linux kernel: [ 412.693615] [<c0104007>] dump_stack+0x17/0x20
Jan 27 06:30:00 linux kernel: [ 412.693628] [<c03b2961>] netdev_rx_csum_fault+0x31/0x40
Jan 27 06:30:00 linux kernel: [ 412.693632] [<c03b00ea>] __skb_checksum_complete+0x5a/0x60
Jan 27 06:30:00 linux kernel: [ 412.693635] [<f88d892e>] icmp_error+0x10e/0x1e0 [ip_conntrack]
Jan 27 06:30:00 linux kernel: [ 412.693644] [<f88d5d82>] ip_conntrack_in+0x72/0x240 [ip_conntrack]
Jan 27 06:30:00 linux kernel: [ 412.693651] [<c03c7347>] nf_iterate+0x57/0x90
Jan 27 06:30:00 linux kernel: [ 412.693654] [<c03c73e5>] nf_hook_slow+0x65/0x120
Jan 27 06:30:00 linux kernel: [ 412.693657] [<c03cdc76>] ip_rcv+0x286/0x510
Jan 27 06:30:00 linux kernel: [ 412.693660] [<c03b31a5>] netif_receive_skb+0x165/0x1c0
Jan 27 06:30:00 linux kernel: [ 412.693663] [<c03b3287>] process_backlog+0x87/0x110
Jan 27 06:30:00 linux kernel: [ 412.693665] [<c03b33bf>] net_rx_action+0xaf/0x100
Jan 27 06:30:00 linux kernel: [ 412.693668] [<c01232d5>] __do_softirq+0x55/0xb0
Jan 27 06:30:00 linux kernel: [ 412.693671] [<c0123363>] do_softirq+0x33/0x40
Jan 27 06:30:00 linux kernel: [ 412.693674] [<c0123453>] irq_exit+0x43/0x50
Jan 27 06:30:00 linux kernel: [ 412.693676] [<c0105218>] do_IRQ+0x38/0x70
Jan 27 06:30:00 linux kernel: [ 412.693679] [<c0103baa>] common_interrupt+0x1a/0x20
Jan 27 06:30:00 linux kernel: [ 412.693682] [<c0101147>] cpu_idle+0x87/0x90
Jan 27 06:30:00 linux kernel: [ 412.693684] [<c0100257>] rest_init+0x37/0x40
Jan 27 06:30:00 linux kernel: [ 412.693686] [<c055e845>] start_kernel+0x195/0x1e0
Jan 27 06:30:00 linux kernel: [ 412.693690] [<c0100199>] 0xc0100199
Jan 27 06:30:00 linux dhcpd: icmp.c(274): trace_write_packet with null trace type
Jan 27 06:30:01 linux kernel: [ 413.121225] dsl0: hw csum failure.
Jan 27 06:30:01 linux kernel: [ 413.121227] [<c0104007>] dump_stack+0x17/0x20
Jan 27 06:30:01 linux kernel: [ 413.121236] [<c03b2961>] netdev_rx_csum_fault+0x31/0x40
Jan 27 06:30:01 linux kernel: [ 413.121240] [<c03b00ea>] __skb_checksum_complete+0x5a/0x60
Jan 27 06:30:01 linux kernel: [ 413.121242] [<f88d892e>] icmp_error+0x10e/0x1e0 [ip_conntrack]
Jan 27 06:30:01 linux kernel: [ 413.121252] [<f88d5d82>] ip_conntrack_in+0x72/0x240 [ip_conntrack]
Jan 27 06:30:01 linux kernel: [ 413.121258] [<c03c7347>] nf_iterate+0x57/0x90
Jan 27 06:30:01 linux kernel: [ 413.121261] [<c03c73e5>] nf_hook_slow+0x65/0x120
Jan 27 06:30:01 linux kernel: [ 413.121264] [<c03cdc76>] ip_rcv+0x286/0x510
Jan 27 06:30:01 linux kernel: [ 413.121267] [<c03b31a5>] netif_receive_skb+0x165/0x1c0
Jan 27 06:30:01 linux kernel: [ 413.121270] [<c03b3287>] process_backlog+0x87/0x110
Jan 27 06:30:01 linux kernel: [ 413.121272] [<c03b33bf>] net_rx_action+0xaf/0x100
Jan 27 06:30:01 linux knut: Sleeping 2 seconds
Jan 27 06:30:01 linux kernel: [ 413.121275] [<c01232d5>] __do_softirq+0x55/0xb0
Jan 27 06:30:01 linux kernel: [ 413.121278] [<c0123363>] do_softirq+0x33/0x40
Jan 27 06:30:01 linux kernel: [ 413.121281] [<c0123453>] irq_exit+0x43/0x50
Jan 27 06:30:01 linux kernel: [ 413.121283] [<c0105218>] do_IRQ+0x38/0x70
Jan 27 06:30:01 linux kernel: [ 413.121286] [<c0103baa>] common_interrupt+0x1a/0x20
Jan 27 06:30:01 linux kernel: [ 413.121288] [<c0101147>] cpu_idle+0x87/0x90
Jan 27 06:30:01 linux kernel: [ 413.121291] [<c0100257>] rest_init+0x37/0x40
Jan 27 06:30:01 linux kernel: [ 413.121293] [<c055e845>] start_kernel+0x195/0x1e0
Jan 27 06:30:01 linux kernel: [ 413.121296] [<c0100199>] 0xc0100199
Jan 27 06:30:01 linux dhcpd: icmp.c(274): trace_write_packet with null trace type
Jan 27 06:30:03 linux knut: Executing ethtool -K eth0 rx off
Jan 27 06:30:03 linux knut: Sleeping 2 seconds
Jan 27 06:30:05 linux knut: killall tcpdump
Jan 27 06:30:05 linux knut: End of test
06:29:38.899532 PPPoE [ses 0x385] IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], length: 58) p54AB7064.dip.t-dialin.net.rdrmshc > www-proxy.F2.srv.t-online.de.domain: [udp sum ok] 22324+ A? www.suse.com. (30)
06:29:38.899812 PPPoE [ses 0x385] IP (tos 0x10, ttl 64, id 51975, offset 0, flags [DF], length: 73) p54AB7064.dip.t-dialin.net.dab-sti-c > www-proxy.F2.srv.t-online.de.domain: [udp sum ok] 2117+ PTR? 33.150.237.217.in-addr.arpa. (45)
06:29:38.946775 PPPoE [ses 0x385] IP (tos 0x0, ttl 57, id 16399, offset 0, flags [none], length: 74) www-proxy.F2.srv.t-online.de.domain > p54AB7064.dip.t-dialin.net.rdrmshc: [udp sum ok] 22324 q: A? www.suse.com. 1/0/0 www.suse.com. A turing.suse.de (46)
06:29:38.955734 PPPoE [ses 0x385] IP (tos 0x0, ttl 57, id 63158, offset 0, flags [none], length: 115) www-proxy.F2.srv.t-online.de.domain > p54AB7064.dip.t-dialin.net.dab-sti-c: 2117 q: PTR? 33.150.237.217.in-addr.arpa. 1/0/0 [|domain]
06:29:38.955816 PPPoE [ses 0x385] IP (tos 0x10, ttl 64, id 52031, offset 0, flags [DF], length: 73) p54AB7064.dip.t-dialin.net.dab-sti-c > www-proxy.F2.srv.t-online.de.domain: [udp sum ok] 2118+ PTR? 100.112.171.84.in-addr.arpa. (45)
06:29:39.009499 PPPoE [ses 0x385] IP (tos 0x0, ttl 57, id 59142, offset 0, flags [none], length: 113) www-proxy.F2.srv.t-online.de.domain > p54AB7064.dip.t-dialin.net.dab-sti-c: 2118 q: PTR? 100.112.171.84.in-addr.arpa. 1/0/0 [|domain]
06:29:39.009587 PPPoE [ses 0x385] IP (tos 0x10, ttl 64, id 52085, offset 0, flags [DF], length: 72) p54AB7064.dip.t-dialin.net.dab-sti-c > www-proxy.F2.srv.t-online.de.domain: [udp sum ok] 2119+ PTR? 3.220.135.195.in-addr.arpa. (44)
06:29:39.055627 PPPoE [ses 0x385] IP (tos 0x0, ttl 57, id 39957, offset 0, flags [none], length: 100) www-proxy.F2.srv.t-online.de.domain > p54AB7064.dip.t-dialin.net.dab-sti-c: 2119 q: PTR? 3.220.135.195.in-addr.arpa. 1/0/0 3.220.135.195.in-addr.arpa. (72)
06:29:40.953234 PPPoE [ses 0x385] IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], length: 84) p54AB7064.dip.t-dialin.net > turing.suse.de: icmp 64: echo request seq 1
06:29:41.022500 PPPoE [ses 0x385] IP (tos 0x0, ttl 55, id 36207, offset 0, flags [none], length: 84) turing.suse.de > p54AB7064.dip.t-dialin.net: icmp 64: echo reply seq 1
06:29:41.952973 PPPoE [ses 0x385] IP (tos 0x0, ttl 64, id 1, offset 0, flags [DF], length: 84) p54AB7064.dip.t-dialin.net > turing.suse.de: icmp 64: echo request seq 2
06:29:42.019352 PPPoE [ses 0x385] IP (tos 0x0, ttl 55, id 36398, offset 0, flags [none], length: 84) turing.suse.de > p54AB7064.dip.t-dialin.net: icmp 64: echo reply seq 2
06:29:42.719838 PPPoE [ses 0x385] LCP, Echo-Request (0x09), id 56, Magic-Num 0x8a5b3542, length 8
0x0000: c021 0938 0008 8a5b 3542
06:29:42.761102 PPPoE [ses 0x385] LCP, Echo-Reply (0x0a), id 56, Magic-Num 0x15c96251, length 8
0x0000: c021 0a38 0008 15c9 6251
06:29:46.031631 PPPoE [ses 0x385] IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], length: 58) p54AB7064.dip.t-dialin.net.dab-sti-c > www-proxy.F2.srv.t-online.de.domain: [udp sum ok] 35750+ A? www.suse.com. (30)
06:29:46.078624 PPPoE [ses 0x385] IP (tos 0x0, ttl 57, id 53333, offset 0, flags [none], length: 74) www-proxy.F2.srv.t-online.de.domain > p54AB7064.dip.t-dialin.net.dab-sti-c: [udp sum ok] 35750 q: A? www.suse.com. 1/0/0 www.suse.com. A turing.suse.de (46)
06:29:47.033244 PPPoE [ses 0x385] IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], length: 58) p54AB7064.dip.t-dialin.net.imgames > 217.237.151.161.domain: [udp sum ok] 35750+ A? www.suse.com. (30)

Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
input_ext all -- anywhere anywhere
input_int all -- anywhere anywhere
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-IN-ILL-TARGET '
DROP all -- anywhere anywhere

Chain FORWARD (policy DROP)
target prot opt source destination
TCPMSS tcp -- anywhere anywhere tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU
TCPMSS tcp -- anywhere anywhere tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU
forward_ext all -- anywhere anywhere
forward_int all -- anywhere anywhere
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-FWD-ILL-ROUTING '
DROP all -- anywhere anywhere

Chain OUTPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
LOG icmp -- anywhere anywhere limit: avg 3/min burst 5 icmp time-exceeded LOG level warning tcp-options ip-options prefix `SFW2-OUT-TRACERT-ATTEMPT '
ACCEPT icmp -- anywhere anywhere icmp time-exceeded
ACCEPT icmp -- anywhere anywhere icmp port-unreachable
ACCEPT icmp -- anywhere anywhere icmp fragmentation-needed
ACCEPT icmp -- anywhere anywhere icmp network-prohibited
ACCEPT icmp -- anywhere anywhere icmp host-prohibited
ACCEPT icmp -- anywhere anywhere icmp communication-prohibited
DROP icmp -- anywhere anywhere icmp destination-unreachable
ACCEPT all -- anywhere anywhere state NEW,RELATED,ESTABLISHED
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-OUT-ERROR '

Chain forward_dmz (0 references)
target prot opt source destination
LOG all -- anywhere anywhere limit: avg 3/min burst 5 state INVALID LOG level warning tcp-options ip-options prefix `SFW2-FWDdmz-DROP-DEFLT-INV '
DROP all -- anywhere anywhere state INVALID
ACCEPT icmp -- anywhere anywhere state RELATED icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp echo-reply
ACCEPT all -- anywhere anywhere state NEW,RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-FWDdmz-DROP-DEFLT '
DROP all -- anywhere anywhere

Chain forward_ext (1 references)
target prot opt source destination
LOG all -- anywhere anywhere limit: avg 3/min burst 5 state INVALID LOG level warning tcp-options ip-options prefix `SFW2-FWDext-DROP-DEFLT-INV '
DROP all -- anywhere anywhere state INVALID
ACCEPT icmp -- anywhere anywhere state RELATED icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp echo-reply
ACCEPT all -- anywhere anywhere state NEW,RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-FWDext-DROP-DEFLT '
DROP all -- anywhere anywhere

Chain forward_int (1 references)
target prot opt source destination
LOG all -- anywhere anywhere limit: avg 3/min burst 5 state INVALID LOG level warning tcp-options ip-options prefix `SFW2-FWDint-DROP-DEFLT-INV '
DROP all -- anywhere anywhere state INVALID
ACCEPT icmp -- anywhere anywhere state RELATED icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp echo-reply
ACCEPT all -- anywhere anywhere state NEW,RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-FWDint-DROP-DEFLT '
DROP all -- anywhere anywhere

Chain input_dmz (0 references)
target prot opt source destination
LOG all -- anywhere anywhere PKTTYPE = broadcast limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-DROP-BCASTd '
DROP all -- anywhere anywhere PKTTYPE = broadcast
ACCEPT icmp -- anywhere anywhere icmp source-quench
ACCEPT icmp -- anywhere anywhere icmp echo-request
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp echo-reply
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp time-exceeded
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp parameter-problem
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp timestamp-reply
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp address-mask-reply
LOG all -- anywhere anywhere limit: avg 3/min burst 5 state INVALID LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP-DEFLT-INV '
DROP all -- anywhere anywhere state INVALID
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ssh flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ssh flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:sunrpc flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:sunrpc flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ipp flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ipp flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:827 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:827 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:nfs flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:nfs flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:16273 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:16273 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ssh flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ssh flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ssh flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ssh flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:sunrpc flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:sunrpc flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:sunrpc flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:sunrpc flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ipp flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ipp flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ipp flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ipp flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:827 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:827 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:827 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:827 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:nfs flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:nfs flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:nfs flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:nfs flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:16273 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:16273 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:16273 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP '
DROP tcp -- anywhere anywhere tcp dpt:16273 flags:SYN,RST,ACK/SYN
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-INdmz-DROP-DEFLT '
DROP all -- anywhere anywhere

Chain input_ext (1 references)
target prot opt source destination
LOG all -- anywhere anywhere PKTTYPE = broadcast limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-DROP-BCASTe '
DROP all -- anywhere anywhere PKTTYPE = broadcast
ACCEPT icmp -- anywhere anywhere icmp source-quench
ACCEPT icmp -- anywhere anywhere icmp echo-request
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp echo-reply
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp time-exceeded
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp parameter-problem
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp timestamp-reply
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp address-mask-reply
LOG all -- anywhere anywhere limit: avg 3/min burst 5 state INVALID LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP-DEFLT-INV '
DROP all -- anywhere anywhere state INVALID
LOG tcp -- anywhere anywhere tcp dpt:ident state NEW limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-INext-REJECT '
reject_func tcp -- anywhere anywhere tcp dpt:ident state NEW
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ssh flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ssh flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:sunrpc flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:sunrpc flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ipp flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ipp flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:827 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:827 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:nfs flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:nfs flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:16273 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:16273 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ssh flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ssh flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ssh flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ssh flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:sunrpc flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:sunrpc flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:sunrpc flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:sunrpc flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ipp flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ipp flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:ipp flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:ipp flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:827 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:827 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:827 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:827 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:nfs flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:nfs flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:nfs flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:nfs flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:16273 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:16273 flags:SYN,RST,ACK/SYN
LOG tcp -- anywhere anywhere limit: avg 3/min burst 5 tcp dpt:16273 flags:SYN,RST,ACK/SYN LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP '
DROP tcp -- anywhere anywhere tcp dpt:16273 flags:SYN,RST,ACK/SYN
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-INext-DROP-DEFLT '
DROP all -- anywhere anywhere

Chain input_int (1 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT icmp -- anywhere anywhere icmp source-quench
ACCEPT icmp -- anywhere anywhere icmp echo-request
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp echo-reply
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp time-exceeded
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp parameter-problem
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp timestamp-reply
ACCEPT icmp -- anywhere anywhere state RELATED,ESTABLISHED icmp address-mask-reply
LOG all -- anywhere anywhere limit: avg 3/min burst 5 state INVALID LOG level warning tcp-options ip-options prefix `SFW2-INint-DROP-DEFLT-INV '
DROP all -- anywhere anywhere state INVALID
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning tcp-options ip-options prefix `SFW2-INint-DROP-DEFLT '
DROP all -- anywhere anywhere

Chain reject_func (1 references)
target prot opt source destination
REJECT tcp -- anywhere anywhere reject-with tcp-reset
REJECT udp -- anywhere anywhere reject-with icmp-port-unreachable
REJECT all -- anywhere anywhere reject-with icmp-proto-unreachable

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