VERIFICATION  

Friday, November 14, 2008

and now to verify it we can create a loop back on isp1 and we should not advertise it to bgp .. still as it has a default router our sanjose router should ping it from default gateway

CODE
as#2
[Resuming connection 2 to r2 ... ]

isp1(config-router)#exit
isp1(config)#int l1
isp1(config-if)#int l20
isp1(config-if)#
*Mar 1 02:43:44.887: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
isp1(config-if)#ip addr 20.20.20.20 mask 255.255.255.255
^
% Invalid input detected at '^' marker.

isp1(config-if)#ip addr 20.20.20.20 255.255.255.255
isp1(config-if)#do siib
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES unset administratively down down
FastEthernet0/1 unassigned YES unset administratively down down
Ethernet1/0 unassigned YES unset administratively down down
Ethernet1/1 unassigned YES unset administratively down down
Ethernet1/2 unassigned YES unset administratively down down
Ethernet1/3 unassigned YES unset administratively down down
Serial2/0 10.0.0.1 YES manual up up
Serial2/1 unassigned YES unset administratively down down
Serial2/2 unassigned YES unset administratively down down
Serial2/3 unassigned YES unset administratively down down
Loopback0 12.0.1.1 YES manual up up
Loopback1 unassigned YES unset up up
Loopback20 20.20.20.20 YES manual up up ----------> int is up but network is not advertised into bgp
isp1(config-if)#
as#1
[Resuming connection 1 to r1 ... ]

sanjose#sir
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.0.0.1 to network 0.0.0.0

172.16.0.0/24 is subnetted, 2 subnets
C 172.16.0.0 is directly connected, Serial2/1
B 172.16.1.0 [20/0] via 172.16.0.1, 00:30:58
10.0.0.0/30 is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Serial2/0
C 192.168.0.0/24 is directly connected, Loopback0
12.0.0.0/24 is subnetted, 1 subnets
B 12.0.1.0 [20/0] via 10.0.0.1, 00:33:47
C 192.168.1.0/24 is directly connected, Loopback1
S* 0.0.0.0/0 [210/0] via 10.0.0.1
sanjose# ************************************************ no 20 network


sanjose#ping 20.20.20.20 -------------> it can ping

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 20.20.20.20, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/41/104 ms
sanjose#traceroute 20.20.20.20

Type escape sequence to abort.
Tracing the route to 20.20.20.20

1 10.0.0.1 48 msec 40 msec * ------------------------> de - gw
sanjose#

for some strange reason i couldnt succeed in ip default-network command to configure the redundant parts now ... i need to see .. apart from that . the labbing part is done and on to lab 2



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