This document outlines the steps to configure HSRP (Hot Standby Router Protocol) on two multi-layer switches (MLS1 and MLS2) including: configuring IP addresses, EIGRP routing, web server and NTP server, setting MLS1 as the active router, tracking the state of interfaces, using HSRP for load balancing between the routers, and enabling NAT on the border router for internal traffic.
Redistribution is necessary when routing protocols connect and must pass routes between the two.
Route Redistribution involves placing the routes learned from one routing domain, such as RIP, into
another routing domain, such as EIGRP.
While running a single routing protocol throughout your entire IP internetwork is desirable, multiprotocol routing is common for a number of reasons, such as company mergers, multiple departments
managed by multiple network administrators, and multi-vendor environments. Running different
routing protocols is often part of a network design.
VRRP (Virtual Router Redundancy Protocol) is a computer networking protocol that provides for
automatic assignment of available Internet Protocol (IP) routers to participating hosts. This increases the
availability and reliability of routing paths via automatic default gateway selections on an IP subnetwork.
The Virtual Router Redundancy Protocol (VRRP) eliminates the single point of failure inherent in the
static default routed environment. VRRP specifies an election protocol that dynamically assigns
responsibility for a virtual router (a VPN 3000 Series Concentrator cluster) to one of the VPN
Concentrators on a LAN. The VRRP VPN Concentrator that controls the IP address(es) associated with a
virtual router is called the Master, and forwards packets sent to those IP addresses.
Redistribution is necessary when routing protocols connect and must pass routes between the two.
Route Redistribution involves placing the routes learned from one routing domain, such as RIP, into
another routing domain, such as EIGRP.
While running a single routing protocol throughout your entire IP internetwork is desirable, multiprotocol routing is common for a number of reasons, such as company mergers, multiple departments
managed by multiple network administrators, and multi-vendor environments. Running different
routing protocols is often part of a network design.
VRRP (Virtual Router Redundancy Protocol) is a computer networking protocol that provides for
automatic assignment of available Internet Protocol (IP) routers to participating hosts. This increases the
availability and reliability of routing paths via automatic default gateway selections on an IP subnetwork.
The Virtual Router Redundancy Protocol (VRRP) eliminates the single point of failure inherent in the
static default routed environment. VRRP specifies an election protocol that dynamically assigns
responsibility for a virtual router (a VPN 3000 Series Concentrator cluster) to one of the VPN
Concentrators on a LAN. The VRRP VPN Concentrator that controls the IP address(es) associated with a
virtual router is called the Master, and forwards packets sent to those IP addresses.
Networking Devices are units that mediate data in a computer network and are also called network equipment. Units which are the last receiver or generate data are called hosts or data terminal equipment.
Wireless networks come in many different forms, cover various distances, and provide a range of low to
high bandwidth depending on the type installed. Wireless LAN – Wireless LAN enable Laptop users to
access the Network of a company.
TCP Intercept was developed to protect servers and other resources from Denial-of-Service (DoS)
attacks, specifically TCP SYN attacks.
Just as the name says, TCP Intercept captures incoming TCP requests. Instead of allowing direct access
to the server, TCP Intercept acts as an intermediary, establishing a connection to the server on behalf of
the requesting client.
TCP Intercept will block a client if too many incoming connections are attempted.
For some very basic VRF configuration follow the steps:
1. Enters VRF configuration mode and assigns a VRF name.
Router(config)#ip vrf vrf-name
2. Creates a VPN route distinguisher (RD) following one of the 16bit-ASN:32bit-number or 32bitIP:16bit-number explained above
Router(config-vrf)#rd route-distinguisher
3. Creates a list of import and/or export route target communities for the specified VRF.
Router(config-vrf)# route-target {import | export | both} route-distinguisher
4. (Optional step) Associates the specified route map with the VRF.
Router(config-vrf)# import map route-map
IP Address is a unique identification given to Host, network device, server for data communication. IP
Address stand for Internet Protocol address, it is an addressing scheme used to identify a system on a
network. It is a unique address that certain electronic devices currently use to communicate with each
other on a network using internet protocol.
A network consists of a collection of computers, printers and other compatible equipment/ hardware
that is connected together so that they can communicate with each other.
Spanning Tree Protocol (STP) resolves physically redundant topologies into loop-free, tree-like
topologies. The biggest issue with STP is that some hardware failures can cause it to fail. This failure
creates forwarding loops (or STP loops). Major network outages are caused by STP loops.
The loop guard STP feature that is intended to improve the stability of the Layer 2 networks. This
document also describes Bridge Protocol Data Unit (BPDU) skew detection. BPDU skew detection is a
diagnostic feature that generates syslog messages when BPDUs are not received in time.
A VPN (Virtual Private Network) extends a private network across a public network, such as the
Internet.
A VPN is a network that uses a public telecommunication infrastructure, such as the Internet, to provide
remote offices or individual users with secure access to their organization's network. A VPN ensures
privacy through security procedures and tunneling protocols such as the Layer Two Tunneling Protocol
(L2TP). Data is encrypted at the sending end and decrypted at the receiving end.
Frame Relay is a high-performance WAN protocol that operates at the physical and data link layers of
the OSI reference model. Frame Relay originally was designed for use across Integrated Services Digital
Network (ISDN) interfaces. Today, it is used over a variety of other network interfaces as well.
Frame relay is a type of WAN connection use to connect one site to many remote sites through a single
physical circuit; this operation makes it easy to construct reliable and inexpensive networks.
In computer networking, a single layer-2 network may be partitioned to create multiple distinct
broadcast domains, which are mutually isolated so that packets can only pass between them via one or
more routers; such a domain is referred to as a virtual local area network, virtual LAN or VLAN.
A virtual local area network (VLAN) is a logical group of workstations, servers and network devices that
appear to be on the same LAN despite their geographical distribution. A VLAN allows a network of
computers and users to communicate in a simulated environment as if they exist in a single LAN and are
sharing a single broadcast and multicast domain.
A Routed Protocol is used to deliver application traffic. It provides appropriate addressing information in
its Internet Layer (Network Layer) addressing to allow a packet to be forwarded from one network to
another. Routed Protocols are nothing more than data being transported across the networks.
Networking Tutorial Goes to Basic PPP Configuration3Anetwork com
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1. LAB 13: HSRP (Hot Standby Router Protocol)
Task
1. Configure IP Addresses as per given in topology.
2. Configure Web_Server and NTP Server as per given in topology.
3. Configure ISP as a NTP Client.
4. Configure Eigrp as per given in topology.
5. Configure MLS1 and MLS2 for HSRP. Make sure Virtual IP for HSRP is 192.168.200.254.
6. Make sure Authentication on HSRP is MD5 use 4%ghT) as a password.
7. Make sure MLS1 is always Active.
8. Make sure MLS1 and MLS2 track fastethernet 0/0.
9. Make sure PC1, PC2 and PC6 send their traffic to MLS2 and PC3, PC4 and PC5 send traffic from
MLS1 with secure communication. Use Virtual IP is 192.168.200.253 and use authentication MD5
use 4%ghT).
10. Make sure ZBF send internal traffic via NATTING. Use PAT for this senerio.
11. Make sure all Pc's setup clock via NTP Server.
12. Make sure all PC's ping netwaxlab.com and blog.eincop.com.
2. LAB 13: HSRP (Hot Standby Router Protocol)
Solution
Task 2: Configure Web_Server and NTP Server as per given in topology.
Server
no ip routing
ip default-gateway 169.112.87.1
Web_Server
ip dns server
ip host netwaxlab.com 100.100.100.100
ip host blog.eincop.com 101.101.101.101
NTP
Server# set clock (you need to set clock with this command)
Server(config)# ntp master
Task 3: Configure ISP as a NTP Client.
Server(config)# ntp server 169.112.87.200
Task 4: Configure Eigrp as per given in topology.
ZBF
router eigrp 100
redistribute static
network 192.168.1.0
no auto-summary
exit
HQ
router eigrp 100
network 10.0.0.0 0.0.0.255
network 20.0.0.0 0.0.0.255
network 192.168.1.0
no auto-summary
exit
(NOTE: Make sure you need to use "ip routing" command to enable routing on Multi Layer Switch)
3. LAB 13: HSRP (Hot Standby Router Protocol)
MLS1
ip routing
router eigrp 100
network 10.0.0.0 0.0.0.255
network 192.168.200.0
no auto-summary
exit
MLS2
router eigrp 100
network 20.0.0.0 0.0.0.255
network 192.168.200.0
no auto-summary
exit
Task 5: Configure MLS1 and MLS2 for HSRP. Make sure Virtual IP for HSRP is 192.168.200.254.
MLS1
interface f0/1
standby 1 ip 192.168.200.254
standby 1 priority 200
exit
MLS2
interface f0/1
standby 1 ip 192.168.200.254
exit
Task 6: Make sure Authentication on HSRP is MD5 use 4%ghT) as a password.
MLS1
interface f0/1
standby 1 authentication md5 key-string 4%ghT)
MLS2
interface f0/1
standby 1 authentication md5 key-string 4%ghT)
4. LAB 13: HSRP (Hot Standby Router Protocol)
Task 7: Make sure MLS1 is always Active after recover the link.
MLS1
interface f0/1
standby 1 preempt
exit
Task 8: Make sure MLS1 and MLS2 track fastethernet 0/0.
MLS1
interface f0/1
standby 1 track f0/0
exit
MLS2
interface f0/1
standby 1 track f0/0
exit
Task 9: Make sure PC1, PC2 and PC6 send their traffic to MLS2 and PC3, PC4 and PC5 send
traffic from MLS1 with secure communication. Use Virtual IP is 192.168.200.253 and use
authentication MD5 use 4%ghT).
(NOTE: Load Balancing Concept in HSRP)
MLS1
interface f0/1
standby 2 ip 192.168.200.253
standby 2 authentication md5 key-string 4%ghT)
standby 2 track FastEthernet0/0
exit
MLS2
standby 2 ip 192.168.200.253
standby 2 priority 200
standby 2 preempt
standby 2 authentication md5 key-string 4%ghT)
standby 2 track FastEthernet0/0
5. LAB 13: HSRP (Hot Standby Router Protocol)
(NOTE: Configure PC1, PC2 and PC6 default gateway is 192.168.200.253 and PC3, PC4 and PC5 default
gateway is 192.168.200.254.)
Task 10: Make sure ZBF send internal traffic via NATTING. Use PAT for this scenario.
ZBF
ip access-list extended NAT
permit ip 192.168.1.0 0.0.0.255 any
permit ip 10.0.0.0 0.0.0.255 any
permit ip 20.0.0.0 0.0.0.255 any
permit ip 192.168.200.0 0.0.0.255 any
exit
interface f0/1
ip nat inside
exit
interface f0/0
ip nat outside
exit
ip nat inside source list NAT interface FastEthernet0/0 overload
verify it using "sh ip nat translations" command.
Task 11: Make sure all Pc's setup clock via NTP Server.
(NOTE: you need to use clock setting in your pc and provide NTP server ip address. It will sync and show
the time)
Task 12: Make sure all PC's ping netwaxlab.com and blog.eincop.com.
(NOTE: first you need to ping 169.112.87.200, If it will response then you need to configure you dns
using the same ip).
Now generate ping for netwaxlab.com and blog.eincop.com.
Make sure you need to provide static route in ISP to 100,100.100.100 and 101.101.101.101.