Project Update: Gateway to ISP

Tuesday, September 2, 2014

I have been super busy over the last few weeks finishing off basic connectivity throughout the network, and have been able to send ICMP echos to loopback1 on the ISP router. My original method was a bit too advanced for this particular situation, as it was a point-to-point multi-homed connection configured under the Border Gateway Protocol (BGP) routing protocol. I wasn't able to correctly configure OSPF to offer a summary exit route to the ISP using BGP and in turn, bit the bullet and went with a single default route per ISP-facing interface (two default routes across CENR1 and CENR2). 

The current configuration is as follows:

#CENR1
interface fastethernet0/1
 ip address 10.0.2.26 255.255.255.248
 standby 99 ip 10.0.2.29
 standby 99 version 2
 standby 99 priority 110
 standby 99 preempt

interface Serial0/0/1
 ip address 202.78.120.2 255.255.255.252
 clock rate 128000

ip route 0.0.0.0 0.0.0.0 serial0/0/1

router ospf 1
  redistribute static

#CENR2
interface fastethernet0/1
 ip address 10.0.2.62 255.255.255.248
 standby 99 ip 10.0.2.29
 standby 99 version 2
 standby 99 priority 100
 standby 99 preempt

interface serial0/0/0

 ip address 202.78.120.6 255.255.255.252

ip route 0.0.0.0 0.0.0.0 serial0/0/0

router ospf 1
  redistribute static

#ISP
ip route 202.78.120.2 255.255.255.255 Serial0/0/0
ip route 202.78.120.6 255.255.255.255 Serial0/0/1

interface Loopback1
 ip address 202.78.123.7 255.255.255.255

interface Serial0/0/1
 ip address 202.78.120.5 255.255.255.252
 clock rate 128000

interface Serial0/0/0
 ip address 202.78.120.1 255.255.255.252

Currently the security of the network isn't fully configured, which allows end users on the Student, Staff LAN networks are able to connect to devices throughout the network. The next blog post will cover my work on HSRP and ACLs

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