Sunday, November 10, 2019

Cisco ZBF Config Question

I have Cisco 891F configured with ZBF from CBAC. Right now, router is wide-open SSH/443 or anything my public address is listening on, which is not what I intended. My intention was to only allow IMCP in. Is there somewhere else I need to apply a restrictions? I feel like I'm missing something glaring.

Parakoopa891F#show run

ip ssh version 2

!

class-map type inspect match-any INSIDE-TO-OUTSIDE-CLASS

description Allowed_Protocols_From_INSIDE_to_OUTSIDE

match protocol http

match protocol https

match protocol dns

match protocol udp

match protocol tcp

match protocol icmp

class-map type inspect match-any OUTSIDE-TO-INSIDE-CLASS

description Allowed_Protocols_From_OUTSIDE_to_INSIDE

match protocol icmp

!

policy-map type inspect INSIDE-TO-OUTSIDE-POLICY

class type inspect INSIDE-TO-OUTSIDE-CLASS

inspect

class class-default

drop log

policy-map type inspect OUTSIDE-TO-INSIDE-POLICY

class type inspect OUTSIDE-TO-INSIDE-CLASS

pass

class class-default

drop log

!

zone security INSIDE

zone security OUTSIDE

zone-pair security IN-TO-OUT source INSIDE destination OUTSIDE

service-policy type inspect INSIDE-TO-OUTSIDE-POLICY

zone-pair security OUT-TO-IN source OUTSIDE destination INSIDE

service-policy type inspect OUTSIDE-TO-INSIDE-POLICY

!

interface Loopback0

ip address 172.16.1.1 255.255.255.255

!

interface GigabitEthernet8

description Outside

ip address dhcp

ip nat outside

ip virtual-reassembly in

zone-member security OUTSIDE

duplex auto

speed auto

!

interface Virtual-Template1

ip unnumbered Loopback0

ip nat inside

ip virtual-reassembly in

zone-member security INSIDE

!

interface Vlan1

description Internal

ip address 10.69.69.254 255.255.255.0

ip nat inside

ip virtual-reassembly in

zone-member security INSIDE

ip nat inside source list ACLNATOVERLOAD interface GigabitEthernet8 overload

ip route 0.0.0.0 0.0.0.0 GigabitEthernet8

!

ip access-list extended ACLNATOVERLOAD

permit ip 10.69.69.0 0.0.0.255 any

!

end

Any insight would be greatly appreciated!



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