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All FAQs » Cisco Forum FAQ » 40.2 Security Sample Configurations » 15839


Zone-Based Firewall Sample Configuration (#15839)
Note: * Router needs to run 12.4 IOS image !version 12.4 no service pad service tcp-keepalives-in service tcp-keepalives-out service timestamps debug datetime msec localtime show-timezone service timestamps log datetime msec localtime show-timezone service password-encryption service sequence-numbers ! hostname Router ! boot-start-marker boot-end-marker ! security authentication failure rate 3 log security passwords min-length 6 logging buffered 51200 logging console critical enable secret 5 <removed> ! aaa new-model ! ! aaa group server radius sdm-vpn-server-group-1 server <lan server ip> auth-port 1645 acct-port 1646 ! aaa authentication login local_authen local aaa authentication ppp default group radius aaa authorization exec local_author local aaa authorization network default group radius aaa authorization network sdm_vpn_group_ml_1 group sdm-vpn-server-group-1 aaa accounting exec default start-stop group radius aaa accounting connection default start-stop group radius aaa accounting resource default start-stop-failure group radius ! ! aaa session-id common clock timezone GMT 0 clock summer-time BST recurring last Sun Mar 2:00 last Sun Oct 3:00 dot11 phone dot11 arp-cache no ip source-route ip icmp rate-limit unreachable 100 ip icmp rate-limit unreachable DF 1 ip cef ! ip nbar pdlm flash:/rtp-124.pdlm ! ! ! ip tcp ecn ip tcp selective-ack ip tcp window-size 169360 ip tcp synwait-time 10 no ip bootp server ip domain name johnpavel.local ip name-server <lan server ip> ip port-map user-terminal port tcp 3389 description Terminal Services ip port-map user-mmsu port udp 1755 description MMSU ip port-map user-sharepoint port tcp 444 description Windows Sharepoint Services ip port-map user-rtspu port udp 5005 description RTSPU ip port-map user-remote-web port tcp 4125 description Remote Web Workplace ip port-map user-nat-stun port udp 3478 description Simple Traversal of UDP through NAT ip ssh time-out 60 ip dhcp-server <lan server ip> login block-for 15 attempts 2 within 30 ! multilink bundle-name authenticated vpdn enable ! vpdn-group L2TP ! Default L2TP VPDN group accept-dialin protocol l2tp virtual-template 1 no l2tp tunnel authentication l2tp tunnel password 7 l2tp tunnel receive-window 256 ! parameter-map type inspect pmap-audit audit-trail on password encryption aes ! crypto pki trustpoint TP-self-signed-... ! crypto pki trustpoint <server> enrollment mode ra enrollment url http://<server>:80/certsrv/mscep/mscep.dll usage ike password 7 08781A1C2F495C4E422F545573087C7B10 revocation-check crl ! ! crypto pki certificate chain TP-self-signed-... quit crypto pki certificate chain ... quit no crypto engine onboard 0 ! ! username <user> privilege 15 secret 5 <removed> ! ! class-map type inspect match-all sdm-cls-http-1 match access-group name InternalServer match protocol http class-map type inspect match-any AllowedOut description Permitted Traffic to internet match protocol https match protocol dns match protocol imap match protocol icmp match protocol ftp match protocol smtp extended match protocol sip match protocol user-nat-stun match protocol ntp match protocol pop3 match protocol pptp match protocol rtsp match protocol realmedia match protocol netshow match protocol appleqtc match protocol streamworks match protocol vdolive match protocol telnet class-map type inspect match-all sdm-cls-http match protocol http class-map type inspect match-any SDM_GRE match access-group name SDM_GRE class-map type inspect match-any ExternallyVisibleProtocols description Externally-visible protocols match protocol http match protocol https match protocol smtp extended match protocol user-sharepoint match protocol user-remote-web match protocol pptp match class-map SDM_GRE match protocol user-terminal match protocol rtsp match protocol netshow match protocol user-mmsu match protocol user-rtspu class-map type inspect match-any returningGRE description Returning GRE for PPTP match class-map SDM_GRE class-map type inspect match-any SDM_ESP match access-group name SDM_ESP class-map type inspect match-all ICMPReply description Only certain pings permitted to router match access-group name ICMPReply class-map type inspect match-any RouterToOutside description Permit router-generated traffic out match protocol tcp match protocol udp match protocol icmp class-map type inspect match-all ExternallyVisibleServices description Externally-visible protocols headed to server match access-group name InternalServer match class-map ExternallyVisibleProtocols class-map type inspect match-any IPSec description For L2TP/IPSec match class-map SDM_ESP match protocol isakmp match protocol ipsec-msft class-map type inspect http match-any sdm-http-blockparam match request port-misuse any class-map type inspect match-any InvalidSource description Invalid source addresses for internally-generated outgoing traffic match access-group name InvalidSource class-map type inspect http match-any sdm-app-httpmethods match request method bcopy match request method bdelete match request method bmove match request method bpropfind match request method bproppatch match request method connect match request method copy match request method delete match request method edit match request method getattribute match request method getattributenames match request method getproperties match request method index match request method lock match request method mkcol match request method mkdir match request method move match request method notify match request method options match request method poll match request method propfind match request method proppatch match request method put match request method revadd match request method revlabel match request method revlog match request method revnum match request method save match request method search match request method setattribute match request method startrev match request method stoprev match request method subscribe match request method trace match request method unedit match request method unlock match request method unsubscribe class-map type inspect http match-any sdm-http-allowparam match req-resp protocol-violation ! ! policy-map type inspect RouterToInside description Router to LAN class class-default inspect policy-map type inspect InsideToRouter description LAN to router class class-default inspect policy-map type inspect http sdm-action-app-http class type inspect http sdm-http-blockparam log reset class type inspect http sdm-app-httpmethods log reset class type inspect http sdm-http-allowparam log allow class class-default policy-map type inspect InsideToOutside description LAN to Internet class type inspect returningGRE inspect pmap-audit class type inspect InvalidSource drop log class type inspect sdm-cls-http inspect service-policy http sdm-action-app-http class type inspect AllowedOut inspect class class-default drop log policy-map type inspect OutsideToInside description Internet to LAN (server) class type inspect ExternallyVisibleServices inspect pmap-audit class class-default drop log policy-map type inspect OutSideToRouter description Permitted traffic from internet to router class type inspect ICMPReply pass class type inspect IPSec pass class class-default drop log policy-map type inspect RouterToOutSide description Router to internet class type inspect RouterToOutside inspect pmap-audit class class-default pass ! zone security Inside zone security Outside zone-pair security InsideToOutside source Inside destination Outside service-policy type inspect InsideToOutside zone-pair security RouterToInside source self destination Inside service-policy type inspect RouterToInside zone-pair security InsideToRouter source Inside destination self service-policy type inspect InsideToRouter zone-pair security OutsideToRouter source Outside destination self service-policy type inspect OutSideToRouter zone-pair security RouterToOutside source self destination Outside service-policy type inspect RouterToOutSide zone-pair security OutsideToInside source Outside destination Inside service-policy type inspect OutsideToInside ! ! crypto isakmp policy 10 encr aes 256 group 2 ! crypto isakmp policy 20 encr aes 192 group 2 ! crypto isakmp policy 30 encr aes group 2 ! crypto isakmp policy 40 encr 3des group 2 ! crypto isakmp policy 50 encr aes 256 authentication pre-share group 2 ! crypto isakmp policy 60 encr aes 192 authentication pre-share group 2 ! crypto isakmp policy 70 encr aes authentication pre-share group 2 ! crypto isakmp policy 80 encr 3des authentication pre-share group 2 crypto isakmp key 6 <removed> address 0.0.0.0 0.0.0.0 no-xauth ! ! crypto ipsec transform-set ESP-AES256-SHA esp-aes 256 esp-sha-hmac mode transport crypto ipsec transform-set ESP-AES128-SHA esp-aes esp-sha-hmac mode transport crypto ipsec transform-set ESP-AES192-SHA esp-aes 192 esp-sha-hmac mode transport crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac mode transport ! crypto dynamic-map Dynamic-CryptoMap 1 description IPSec set transform-set ESP-AES128-SHA ESP-3DES-SHA reverse-route ! ! crypto map IPSec-Policy 65535 ipsec-isakmp dynamic Dynamic-CryptoMap ! bridge irb ! ! ! interface Null0 no ip unreachables ! interface ATM0 no ip address no ip redirects no ip unreachables no ip proxy-arp ip accounting access-violations ip route-cache flow no atm ilmi-keepalive dsl operating-mode auto ! interface ATM0.1 point-to-point description Be* Unlimited$ES_WAN$$FW_OUTSIDE$ bandwidth receive 17800 ip address <my external ip address> <my external mask> ip verify unicast reverse-path no ip redirects no ip unreachables no ip proxy-arp ip accounting access-violations ip mtu 1500 ip nbar protocol-discovery ip flow ingress ip flow egress ip nat outside ip virtual-reassembly zone-member security Outside ip tcp adjust-mss 1460 no snmp trap link-status atm route-bridged ip pvc BeUnlimited 0/101 oam-pvc manage encapsulation aal5snap ! crypto map IPSec-Policy ! interface FastEthernet0 description Switch ! interface FastEthernet1 description titan ! interface FastEthernet2 description Yellow ! interface FastEthernet3 description phone ! interface Virtual-Template1 description L2TP$FW_OUTSIDE$ ip unnumbered BVI1 ip verify unicast reverse-path no ip redirects ip accounting access-violations ip nbar protocol-discovery ip flow ingress ip flow egress ip nat inside ip virtual-reassembly zone-member security Inside ip route-cache flow ip tcp adjust-mss 1360 peer default ip address dhcp no keepalive ppp mtu adaptive ppp authentication eap ms-chap-v2 ppp ipcp header-compression ack ppp ipcp username unique ! interface Dot11Radio0 description Wireless no ip address ip accounting access-violations ! encryption mode ciphers tkip ! ssid Wireless authentication open authentication key-management wpa accounting radius guest-mode wpa-psk ascii 7 <removed> ! world-mode dot11d country GB indoor speed basic-1.0 basic-2.0 basic-5.5 basic-6.0 basic-9.0 basic-11.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0 station-role root bridge-group 1 bridge-group 1 spanning-disabled ! interface Vlan1 description LAN$FW_INSIDE$$ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$ no ip address ip accounting access-violations ip tcp adjust-mss 1460 bridge-group 1 ! interface BVI1 description LAN Wireless bridge$ES_LAN$$FW_INSIDE$ ip address <router ip address> 255.255.255.0 no ip redirects no ip proxy-arp ip accounting access-violations ip nbar protocol-discovery ip flow ingress ip flow egress ip nat inside ip virtual-reassembly zone-member security Inside ip route-cache flow ! router bgp <removed> no synchronization bgp log-neighbor-changes neighbor 195.66.241.98 remote-as <removed> neighbor 195.66.241.98 description cymru neighbor 195.66.241.98 password 7 <removed> neighbor 195.66.241.98 ebgp-multihop 255 neighbor 195.66.241.98 prefix-list cymru-out out neighbor 195.66.241.98 route-map CYMRUBOGONS in neighbor 195.66.241.98 maximum-prefix 100 90 no auto-summary ! ip route 0.0.0.0 0.0.0.0 <remote gateway ip address> ip route 192.0.2.1 255.255.255.255 Null0 ip route <cymru ip address> 255.255.255.255 <remote gateway ip address> ! ip bgp-community new-format ip community-list 10 permit <removed> ip flow-cache timeout active 1 ip flow-export version 9 ip flow-export destination <netflow monitor ip> 9996 ip flow-top-talkers top 50 sort-by bytes cache-timeout 3600000 ! ip http server ip http access-class 2 ip http authentication local ip http secure-server ip http timeout-policy idle 60 life 86400 requests 10000 ip nat inside source static tcp <lan server ip> 80 interface ATM0.1 80 ip nat inside source static tcp <lan server ip> 25 interface ATM0.1 25 ip nat inside source static tcp <lan server ip> 443 interface ATM0.1 443 ip nat inside source static tcp <lan server ip> 444 interface ATM0.1 444 ip nat inside source static tcp <lan server ip> 4125 interface ATM0.1 4125 ip nat inside source static tcp <lan server ip> 1723 interface ATM0.1 1723 ip nat inside source static tcp <lan server ip> 3389 interface ATM0.1 3389 ip nat inside source static tcp <lan server ip> 554 interface ATM0.1 554 ip nat inside source static tcp <lan server ip> 1755 interface ATM0.1 1755 ip nat inside source static udp <lan server ip> 1755 interface ATM0.1 1755 ip nat inside source static udp <lan server ip> 5005 interface ATM0.1 5005 ip nat inside source list 1 interface ATM0.1 overload ! ip access-list extended ICMPReply permit icmp any any host-unreachable permit icmp any any port-unreachable permit icmp any any ttl-exceeded permit icmp any any packet-too-big ip access-list extended InternalServer remark Traffic to server remark SDM_ACL Category=128 permit ip any host <lan server ip> ip access-list extended InvalidSource remark Invalid Source Address on LAN remark SDM_ACL Category=128 permit ip host 255.255.255.255 any permit ip <gateway network> <inverse gateway mask> any permit ip 127.0.0.0 0.255.255.255 any ip access-list extended SDM_ESP remark SDM_ACL Category=0 permit esp any any ip access-list extended SDM_GRE remark SDM_ACL Category=0 permit gre any any ! ! ip prefix-list cymru-out seq 5 deny 0.0.0.0/0 le 32 ip radius source-interface BVI1 logging trap debugging logging <lan server ip> access-list 1 remark INSIDE_IF=BVI1 access-list 1 remark SDM_ACL Category=2 access-list 1 permit <lan network> <lan network mask> access-list 2 remark HTTP Access-class list access-list 2 remark SDM_ACL Category=1 access-list 2 permit <lan network> <lan network mask> access-list 2 deny any access-list 112 remark VTY Access-class list access-list 112 remark SDM_ACL Category=1 access-list 112 permit ip <lan network> <lan network mask> any access-list 112 deny ip any any snmp-server community <removed> RW snmp-server community <removed> RO snmp-server ifindex persist no cdp run ! ! ! route-map CYMRUBOGONS permit 10 description Filter bogons learned from cymru.com bogon route-servers match community 10 set ip next-hop 192.0.2.1 ! radius-server host <lan server ip> auth-port 1645 acct-port 1646 key 7 <removed> ! control-plane ! bridge 1 protocol ieee bridge 1 route ip banner login ^CAuthorized access only! Disconnect IMMEDIATELY if you are not an authorized user! ^C alias exec ru sh run alias exec ri sh run \| i alias exec rb sh run \| b ! line con 0 login authentication local_authen no modem enable transport output telnet speed 115200 line aux 0 login authentication local_authen transport output telnet line vty 0 4 access-class 112 in authorization exec local_author login authentication local_authen transport input telnet ssh ! scheduler max-task-time 5000 scheduler allocate 4000 1000 scheduler interval 500 ntp clock-period 17175104 ntp server 193.190.230.66 source ATM0.1 ntp server 213.2.4.80 source ATM0.1 end feedback form by aryoba last modified: 2008-02-10 08:12:51


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All FAQs » Cisco Forum FAQ » 40.2 Security Sample Configurations » 15839

Zone-Based Firewall Sample Configuration (#15839)