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Answer to the first stage of the assignment of "information security management and evaluation" of the higher vocational group of the 2018 Jiangsu Vocational College skills competition

2022-07-07 06:48:00 【Wangzai sec】

1. According to the network topology diagram , according to IP Address planning table , Yes WAF The name of .（20 branch ）

2. According to the network topology diagram , according to IP Address planning table , Yes DCRS The name of 、 Each interface IP Address configuration , stay DCRS Create the corresponding... On the switch VLAN, And classify the corresponding interface into VLAN.（56 branch , Yes, one button 5 branch , Until it's done ）

DCRS#sh run

hostname DCRS （5 branch ）

vlan 1-2;10;20;30;66 （5 branch ）

Interface Ethernet1/0/1

Interface Ethernet1/0/2

switchport access vlan 2 （5 branch ）

Interface Ethernet1/0/3

switchport access vlan 10 （5 branch ）

Interface Ethernet1/0/4

switchport access vlan 20 （5 branch ）

Interface Ethernet1/0/5

switchport access vlan 30 （5 branch ）

Interface Ethernet1/0/6

switchport access vlan 66 （5 branch ）

interface Vlan1

ip address 192.168.1.254 255.255.255.0 （5 branch ）

interface Vlan2

ip address 192.168.2.1 255.255.255.0 （5 branch ）

interface Vlan10

ip address 192.168.10.254 255.255.255.0 （5 branch ）

interface Vlan20

ip address 192.168.20.254 255.255.255.0 （5 branch ）

interface Vlan30

ip address 192.168.30.254 255.255.255.0 （5 branch ）

interface Vlan66

ip address 192.168.66.254 255.255.255.0

3. According to the network topology diagram , according to IP Address planning table , Yes DCFW The name of 、 Each interface IP Address configuration .(20 branch , Deduct every mistake 7 branch )

4. According to the network topology diagram , according to IP Address planning table , stay DCWS Create the corresponding VLAN, And classify the corresponding interface into VLAN, Yes DCWS Management of IP Address configuration .（26 branch , Deduct every mistake 4 branch ）

DCWS#sh run

hostname DCWS （4 branch ）

vlan 1;66 （4 branch ）

Interface Ethernet1/0/16

switchport access vlan 66 （4 branch ）

interface Vlan66 （4 branch ）

ip address 192.168.66.253 255.255.255.0

interface Vlan110（4 branch ）

ip address 192.168.110.254 255.255.255.0

interface Vlan111（4 branch ）

ip address 192.168.111.254 255.255.255.0

interface Vlan222（4 branch ）

ip address 192.168.222.254 255.255.255.0

5. According to the network topology diagram , according to IP Address planning table , Yes DCBI The name of 、 Each interface IP Address configuration .（20 branch , Deduct every mistake 10 branch ）

6. The internal network adopts static routing to realize the interconnection of the whole network .（18 branch ）

Switch ：（8 branch ）

ip route 0.0.0.0/0 192.168.2.2

ip route 192.168.110.0/24 192.168.66.253

ip route 192.168.111.0/24 192.168.66.253

ip route 192.168.222.0/24 192.168.66.253

AC:

ip route 0.0.0.0 0.0.0.0 192.168.66.254 （4 branch ）

A firewall ：（8 branch ）

WAF part

To configure WAF In transparent mode , Complete the interface bridging according to the meaning of the question ;(6 branch )

Create an audit administrator account , user name ：dcn2018, password ：201810dcn(6 branch )

To configure WAF When a malicious scanning website is found , take HTTP Redirect to http://www.dcn.com/alarm.html, Warn the attacker ;(12 branch , Scanning protection 4 branch , action 4 branch , Redirect URL 4 branch )

New vulnerability scanning task dcn, Every day 9:00 scanning 192.168.1.100:80,SQL Inject , Cross site scripting ;(12 branch , The name of the task 4 branch , Scan target 4 branch , Scan content 4 branch )

DCWS part

DCWS To configure VLAN110 To manage VLAN, AP Register dynamically to AC,AC management IP by 192.168.110.254; data VLAN by 111 and 222,vlan222 Related to SSID DCN, Issue network segments respectively 192.168.111.0/24,192.168.222.0/24, Gateway is the last available IP,DNS:8.8.8.8, The gateway needs to be excluded , The address is 2 God ;（22 branch , Deduct every mistake 2 branch , Until it's done ）

service dhcp（2 branch ）

ip dhcp excluded-address 192.168.111.254

ip dhcp excluded-address 192.168.222.254（2 branch ）

ip dhcp pool 110

network-address 192.168.110.0 255.255.255.0

option 43 hex 0104C0A86EFE

option 60 ascii udhcp1.18.2（2 branch ）

ip dhcp pool 111

network-address 192.168.111.0 255.255.255.0

default-router 192.168.111.254

lease 2 0 0

dns-server 8.8.8.8（2 branch ）

ip dhcp pool 222

network-address 192.168.222.0 255.255.255.0

default-router 192.168.222.254

lease 2 0 0

dns-server 8.8.8.8（2 branch ）

interface Vlan66

ip address 192.168.66.253 255.255.255.0（2 branch ）

interface Vlan110

ip address 192.168.110.254 255.255.255.0（2 branch ）

interface Vlan111

ip address 192.168.111.254 255.255.255.0（2 branch ）

interface Vlan222

ip address 192.168.222.254 255.255.255.0（2 branch ）

ip route 0.0.0.0/0 192.168.66.254 （2 branch ）

Interface Ethernet1/0/15 （2 branch ）

switchport mode trunk

switchport trunk native vlan 110

Interface Ethernet1/0/16 （2 branch ）

switchport access vlan 66

wireless

no auto-ip-assign

enable

ap authentication none

static-ip 192.168.110.254（2 branch ）

network 1 （2 branch ）

ssid GUEST

vlan 111

network 2 （2 branch ）

ssid DCN

vlan 222

ap profile 1

name Default

hwtype 29（ or 59）（2 branch ）

radio 1

vap 1

enable （2 branch ）

radio 2

vap 1

enable （2 branch ）

To configure 2.4G Work under frequency band , Use 802.11g agreement ;（8 branch ）

wireless

ap profile 1

ap escape （4 branch ）

radio 1

mode g （4 branch ）

Set up SSID GUEST, The encryption mode is wpa-personal, The password is ：11111111,VLAN111（12 branch , Deduct every mistake 3 branch , Until it's done ）

network 1

security mode wpa-personal（3 branch ）

ssid GUEST（3 branch ）

vlan 111（3 branch ）

wpa key xxxxxx（3 branch ）

GUEST Flow control network , The upside 1M, The downside 2M And turn on user isolation . （12 branch , Deduct every mistake 3 branch ）

network 2

client-qos enable（3 branch ）

client-qos bandwidth-limit down 2048（3 branch ）

client-qos bandwidth-limit up 1024（3 branch ）

station-isolation （3 branch ）

Through configuration, it is avoided that there are many access terminals and a large number of weak terminals , Avoid high-speed clients from being blocked by low-speed clients “ Drag on ”, Let the low-speed client not lose transmission for a long time ;（6 branch ）

ap profile 1

radio 1

schedule-mode preferred （3 branch ）

radio 2

schedule-mode preferred （3 branch ）

Router part

Configure the default route , Enable intranet users to access Internet;( 2 branch )

ip route 0.0.0.0/0 192.168.2.2

Will connect DCFW Two way traffic is mirrored to Netlog To monitor and analyze ;(6 branch )

monitor session 1 source interface Ethernet1/0/2 tx（2 branch ）

monitor session 1 source interface Ethernet1/0/2 rx（2 branch ）

monitor session 1 destination interface Ethernet1/0/1（2 branch ）

Turn on the anti-jamming device ARP Scanning function , Port received... In unit time ARP More than 50 It's considered an attack ,DOWN Drop this port ;(4 branch )

anti-arpscan enable（2 branch ）

anti-arpscan port-based threshold 50（2 branch ）

At the company headquarters DCRS Configure port loop detection on （Loopback Detection）, Prevent from vlan20 Single port loop under interface , The detection time interval when there is a loop is configured as 30 second , The detection interval when there is no loop is 10 second ; (4 branch )

Interface Ethernet1/0/4

switchport access vlan 20

loopback-detection specified-vlan 20 （2 branch ）

loopback-detection control block

loopback-detection interval-time 30 10 （2 branch ）

To control access to the network PC, Need to exchange Eth1/0/10 Mouth open DOT1X authentication , Configure authentication server ,IP The address is 192.168.2.100,radius key yes dcn2018;; (10 branch )

radius-server key 0 dcn2018（2 branch ）

radius-server authentication host 192.168.2.100（2 branch ）

aaa enable（2 branch ）

dot1x enable （2 branch ）

Interface Ethernet1/0/10 （2 branch ）

dot1x enable

dot1x port-method portbased

Switch on remote management , Use SSH The method account number is group number , The password for 123456.（4 branch ）

ssh-server enable （2 branch ）

username 5（ Group number ） privilege 15 password 0 123456 （2 branch ）

VLAN20 Users use dynamic acquisition IP Address ,DHCP The server AC On the configuration .（4 branch ）

service dhcp （2 branch ）

ip forward-protocol udp bootps

interface Vlan20

ip address 192.168.20.254 255.255.255.0

ip helper-address 192.168.66.253 （2 branch ）

Configure... On the switch , Only allowed in vlan30 Users access the wireless management segment during working hours IP.（6 branch ）

Firewall enable

！

time-range time2 （2 branch ）

periodic weekdays 00:00:00 to 09:00:00

periodic weekdays 18:00:00 to 23:59:59

periodic weekend 00:00:00 to 23:59:59

ip access-list extended acl （2 branch ）

deny ip 192.168.30.0 0.0.0.255 192.168.110.0 0.0.0.255 time-range time2

permit ip any-source any-destination

exit

Interface Ethernet1/0/5 （2 branch ）

switchport access vlan 30

ip access-group acl in

For interception 、 Prevent illegal MAC Address and IP Address bound ARP Packet configuration is dynamic arp Detection function ,VLAN30 User network interface ARP The threshold is 50.（4 branch ）

interface Vlan30

ip address 192.168.30.254 255.255.255.0

ip arp dynamic maximum 50

Firewall part

In the head office DCFW Configure according to the meaning of the question Trust,Untruct,VPNhub Area , And configure the release strategy between regions ;（6 branch , Deduct every mistake 2 branch ）

Configure the routing , Leading to internet Configure the default route in the specified direction , Use the next hop IP by PC2, Configure static main class summary routes for internal routes ;（8 branch , Deduct every mistake 4 branch ）

Configuration dynamics NAT, The correspondence is as follows ：（9 branch , Deduct every mistake 3 branch ）

VLAN20 The user map is 200.1.1.20;

VLAN30 The user map is 200.1.1.30;

The head office DCFW To configure SSLVPN, Build users dcn01, password dcn01, Connection required Internet PC2 You can dial in , The service port is 9998,SSLVPN See address table for address pool ; （8 branch , Deduct every mistake 4 branch , Until it's done ）

5、 Intranet wireless users need to pass real name authentication to access the Internet , Adopt export local certification , The account number is the group number , The password for 123.（8 branch , Deduct every mistake 4 branch , Until it's done ）

In order to make rational use of export bandwidth resources, it is necessary to limit the Internet bandwidth of internal users , On weekdays 8:00 To 18:00 Wired users upload online / The download bandwidth is 1000K/2000K, The total export bandwidth of the park network is 200M.（9 branch , Deduct every mistake 3 branch , Until it's done ）

7、 In response to the net action of the network supervision office , It is required that wired users of the intranet web Control the outgoing content , It is forbidden to send keywords to web pages on the Internet “ reactionary ” And record relevant logs .（6 branch , Deduct every mistake 3 branch , Until it's done ）

8、 Find the inside first VLAN20 and VLAN30 A large number of users are connected to the Internet , As a result, it is very slow for intranet users to open external web pages, and sometimes they can't open , It is required to make corresponding settings on the firewall , Control the problem .（6 branch , Deduct every mistake 3 branch , Until it's done ）

9、PC2 It can pass the address orientation of the external network port of the firewall DCST Of 80 port .（4 branch , Deduct every mistake 2 branch , Until it's done ）

DCBI part

At the company headquarters DCBI On the configuration , The equipment is deployed in bypass mode , Add administrator account dcn2018, password dcn2018;(12 branch )

Add content rule , For website access, the keywords include “ violence ” Of , Record and email alarm ;(12 branch )

DCBI Configure applications and application groups “ The king of the world ”,UDP Protocol port number range 11111-11333, From Monday to Friday 9：00-18：00 monitor LAN Of all users in “ The king of the world ” Access records ;(12 branch , Deduct every mistake 4 branch )