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Bcast/Mcast ICMP not allowed when configured as best practices

Bcast/Mcast ICMP not allowed when configured as best practices

Aviv_Kedem
Contributor

Hello community,

AP7532 versions: 5.9.1.4 - 5.9.3.3

Receiving many logs: %DATAPLANE-4-DOSATTACK: BAD_PACKET:  Bcast/Mcast ICMP not allowed

But I had disabled it in the firewall policy (from best practices) :

show running-config firewall-policy default include-factory | include broadcast-multicast-icmp

no ip dos broadcast-multicast-icmp

Why the messages are still appears ?

Thanks

Aviv

6 REPLIES 6

Aviv_Kedem
Contributor

Hello Misha,

show running-config firewall-policy default include-factory from AP:

 no ip dos smurf
 no ip dos twinge
 no ip dos invalid-protocol
 no ip dos router-advt
 no ip dos router-solicit
 no ip dos option-route
 no ip dos ascend
 no ip dos chargen
 no ip dos fraggle
 no ip dos snork
 no ip dos ftp-bounce
 no ip dos tcp-intercept
 no ip dos broadcast-multicast-icmp
 no ip dos land
 no ip dos tcp-xmas-scan
 no ip dos tcp-null-scan
 no ip dos winnuke
 no ip dos tcp-fin-scan
 no ip dos udp-short-hdr
 no ip dos tcp-post-syn
 no ip dos tcphdrfrag
 no ip dos ip-ttl-zero
 no ip dos ipspoof
 no ip dos tcp-bad-sequence
 no ip dos tcp-sequence-past-window
 ip tcp validate-rst-seq-number
 ip tcp validate-rst-ack-number
 ip tcp validate-icmp-unreachable
 ip tcp recreate-flow-on-out-of-state-syn
 ip tcp optimize-unnecessary-resends
 ip dos tcp-max-incomplete high 500
 ip dos tcp-max-incomplete low 200
 no ip-mac conflict
 no ip-mac routing conflict
 flow timeout icmp 30
 flow timeout udp 30
 flow timeout tcp setup 10
 flow timeout tcp established 5400
 flow timeout tcp close-wait 10
 flow timeout tcp reset 10
 flow timeout tcp stateless-general 90
 flow timeout tcp stateless-fin-or-reset 10
 flow timeout other 30
 dhcp-offer-convert
 proxy-arp
 firewall enable
 ipv6 firewall enable
 no ipv6 rewrite-flow-label
 no ipv6 strict-ext-hdr-check 
 no ipv6 unknown-options 
 no ipv6 duplicate-options 
 no ipv6 option end-point-identification
 no ipv6 option router-alert
 no ipv6 option network-service-access-point
 no ipv6 option strict-hao-opt-check
 no ipv6 option strict-padding
 no ipv6 routing-type one
 no ipv6 routing-type two
 ipv6 dos multicast-icmpv6 log-and-drop log-level warnings 
 ipv6 dos hop-limit-zero log-and-drop log-level warnings 
 ipv6 dos tcp-intercept-mobility log-and-drop log-level warnings 
 acl-logging
 no stateful-packet-inspection-l2
 flow dhcp stateful
 alg ftp
 alg tftp
 no alg sip
 alg dns
 no alg facetime
 no alg sccp
 alg pptp
 no logging icmp-all
 no logging icmp-packet-drop
 no logging malformed-packet-drop
 no logging verbose
 ip tcp adjust-mss 1400
 clamp tcp-mss
 virtual-defragmentation
 no virtual-defragmentation minimum-first-fragment-length
 virtual-defragmentation maximum-fragments-per-datagram 140
 virtual-defragmentation maximum-defragmentation-per-host 8
 virtual-defragmentation timeout 1
 dns-snoop entry-timeout 1800
 no 802.2-encapsulation
 no vlan-stacking
 dns-snoop drop-on-parserror
 proxy-nd
 no ipv6-mac conflict
 no ipv6-mac routing conflict
 

Regards,

Aviv

vanelm
Contributor

Hi Aviv, 

  Please check that

1. AP/profile using mentioned firewall-policy

2. Firewall is enabled

 

Regards,

  Misha

GTM-P2G8KFN