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Friday, March 4, 2011

KSA and Sales Meet scheduled

March seems to be all booked. I have KSA trip scheduled and the sales meet by start of the April. I am trying to  complete the ccnp routing before I go to KSA. Once I am back I will give my exam.
Posted by email2vm at 10:30 PM 0 comments

back from Iran

Now that I am back from Iran, I can concentrate on BGP back. And then path control and ipv6.
Posted by email2vm at 10:27 PM 0 comments

Monday, February 14, 2011

IRAN TRIP

My next business trip is scheduled on 17th and I will be back on 2nd March. I will try to complete the course in the mean time as well.

Today I though I lost the Frame Realy. I though I need to open the book again to read them up or just watch jeremy do that. 

Before that I just wanted to try my hand. I opened Jeremy and did the ospf over nbma. Ah its third time and still it seems so fresh. You do not just mug up the things, you understand and apply. Thats real good. I was able to do it myself.

Thank god...everything is still intact :-)
Posted by email2vm at 10:31 AM 1 comments

BGP_IBGP_EBGP_Neighbour forming ----->Fun



Here is the BGP topology i have created. It was quite challenging. My GNS3 is causing the CPU 100% as soon as I run 5 routers with BGP. Super process intensive. I wonder why firewalls and UTM are being used for the BGP.

Here is the result you should finally have  on router 5:
Router#sh ip route
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 not set

     1.0.0.0/32 is subnetted, 1 subnets
O       1.1.1.1 [110/129] via 10.10.5.1, 00:18:09, Serial1/0
     3.0.0.0/32 is subnetted, 1 subnets
B       3.3.3.3 [200/0] via 1.1.1.1, 00:00:17
     5.0.0.0/32 is subnetted, 1 subnets
C       5.5.5.5 is directly connected, Loopback5
     172.10.0.0/24 is subnetted, 1 subnets
B       172.10.0.0 [200/0] via 1.1.1.1, 00:00:17
     10.0.0.0/24 is subnetted, 4 subnets
B       10.10.1.0 [200/0] via 1.1.1.1, 00:00:17
B       10.10.2.0 [200/0] via 1.1.1.1, 00:00:18
O       10.10.3.0 [110/128] via 10.10.5.1, 00:18:09, Serial1/0
C       10.10.5.0 is directly connected, Serial1/0
B    200.10.30.0/24 [200/0] via 1.1.1.1, 00:00:20
B    200.10.10.0/24 [200/0] via 1.1.1.1, 00:00:20


=======================================================


R1
show ip route result:
    1.0.0.0/32 is subnetted, 1 subnets
C       1.1.1.1 is directly connected, Loopback1
     2.0.0.0/32 is subnetted, 1 subnets
S       2.2.2.2 [1/0] via 10.10.0.2
     3.0.0.0/32 is subnetted, 1 subnets
S       3.3.3.3 [1/0] via 10.10.2.2
                [1/0] via 10.10.1.2
     5.0.0.0/32 is subnetted, 1 subnets
O       5.5.5.5 [110/129] via 10.10.3.2, 00:32:28, Serial1/3
     172.10.0.0/24 is subnetted, 1 subnets
B       172.10.0.0 [20/0] via 3.3.3.3, 00:26:29
     10.0.0.0/24 is subnetted, 5 subnets
C       10.10.0.0 is directly connected, Serial1/0
C       10.10.1.0 is directly connected, Serial1/1
C       10.10.2.0 is directly connected, Serial1/2
C       10.10.3.0 is directly connected, Serial1/3
O       10.10.5.0 [110/128] via 10.10.3.2, 00:32:32, Serial1/3
B    200.10.30.0/24 [20/0] via 2.2.2.2, 00:37:07
B    200.10.10.0/24 [20/0] via 2.2.2.2, 00:37:21

!
interface Loopback1
 ip address 1.1.1.1 255.255.255.255
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 10.10.0.1 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 ip address 10.10.1.1 255.255.255.0
 serial restart-delay 0
!
interface Serial1/2
 ip address 10.10.2.1 255.255.255.0
 serial restart-delay 0
!
interface Serial1/3
 ip address 10.10.3.1 255.255.255.0
 serial restart-delay 0
!
router ospf 1000
 log-adjacency-changes
 network 1.1.1.1 0.0.0.0 area 0
 network 10.10.3.0 0.0.0.255 area 0
!
router bgp 1000
 no synchronization
 bgp log-neighbor-changes
 neighbor 2.2.2.2 remote-as 2000
 neighbor 2.2.2.2 ebgp-multihop 2
 neighbor 2.2.2.2 update-source Loopback1
 neighbor 3.3.3.3 remote-as 3000
 neighbor 3.3.3.3 ebgp-multihop 2
 neighbor 3.3.3.3 update-source Loopback1
 neighbor 5.5.5.5 remote-as 1000
 neighbor 5.5.5.5 update-source Loopback1
 neighbor 5.5.5.5 next-hop-self
 no auto-summary
!
ip http server
!
ip route 2.2.2.2 255.255.255.255 10.10.0.2
ip route 3.3.3.3 255.255.255.255 10.10.1.2
ip route 3.3.3.3 255.255.255.255 10.10.2.2
! 
========================================
r2

!
!
interface Loopback2
 ip address 2.2.2.2 255.255.255.255
!
interface Loopback3
 ip address 200.10.30.1 255.255.255.0
!
interface Loopback4
 ip address 200.10.40.1 255.255.255.0
!
interface Loopback10
 ip address 200.10.10.1 255.255.255.0
!
interface Loopback11
 ip address 200.10.20.1 255.255.255.0
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 10.10.0.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router bgp 2000
 no synchronization
 bgp log-neighbor-changes
 network 200.10.10.0
 network 200.10.30.0
 neighbor 1.1.1.1 remote-as 1000
 neighbor 1.1.1.1 ebgp-multihop 2
 neighbor 1.1.1.1 update-source Loopback2
 no auto-summary
!         
ip http server
!
ip route 1.1.1.1 255.255.255.255 10.10.0.1
!

=============================================

r3

!
interface Loopback3
 ip address 3.3.3.3 255.255.255.255
!
interface Loopback10
 ip address 172.10.0.1 255.255.255.0
!
interface Loopback11
 ip address 172.10.1.1 255.255.255.0
!
interface Loopback12
 ip address 172.10.2.1 255.255.255.0
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 10.10.1.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 ip address 10.10.2.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router bgp 3000
 no synchronization
 bgp log-neighbor-changes
 redistribute connected route-map fix
 neighbor 1.1.1.1 remote-as 1000
 neighbor 1.1.1.1 ebgp-multihop 2
 neighbor 1.1.1.1 update-source Loopback3
 no auto-summary
!
ip http server
!
ip route 1.1.1.1 255.255.255.255 10.10.1.1
ip route 1.1.1.1 255.255.255.255 10.10.2.1
!         
!
access-list 10 deny   172.10.1.0 0.0.0.255
access-list 10 deny   172.10.2.0 0.0.0.255
access-list 10 permit any
!
route-map fix permit 10
 match ip address 10
!
!
!
========================================================
r4

!
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 10.10.3.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 ip address 10.10.5.1 255.255.255.0
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router ospf 1000
 log-adjacency-changes
 network 10.10.3.0 0.0.0.255 area 0
 network 10.10.5.0 0.0.0.255 area 0
!
ip http server
!
=================================
r5


!
interface Loopback5
 ip address 5.5.5.5 255.255.255.255
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 10.10.5.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router ospf 1000
 log-adjacency-changes
 network 5.5.5.5 0.0.0.0 area 0
 network 10.10.5.0 0.0.0.255 area 0
!
router bgp 1000
 no synchronization
 bgp log-neighbor-changes
 neighbor 1.1.1.1 remote-as 1000
 neighbor 1.1.1.1 update-source Loopback5
 no auto-summary
!
ip http server
!
======================================================
r1 sh ip bgp


Router#sh ip bgp
BGP table version is 10, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
r> 3.3.3.3/32       3.3.3.3                  0             0 3000 ?
r> 10.10.1.0/24     3.3.3.3                  0             0 3000 ?
r> 10.10.2.0/24     3.3.3.3                  0             0 3000 ?
*> 172.10.0.0/24    3.3.3.3                  0             0 3000 ?
*> 200.10.10.0      2.2.2.2                  0             0 2000 i
*> 200.10.30.0      2.2.2.2                  0             0 2000 i














Posted by email2vm at 10:27 AM 0 comments

Wednesday, February 2, 2011

EIGRP/ OSPF /Route Summarization/ Default Routes/ Route-maps/ Tags---> Great Fun



Ah this was great! 45 mins of pain:
Eigrp+ospf+route redistribution+route-maps+Default routes+Tags--->Fun

As promised, I will keep all the scenarios with config

R1-->networks 10.1.0.0/21 + 10.1.8.0/24 + 192.168.12.0/24 + 192.168.13.0/24 +eigrp + no auto+ route summarization on s1/1
R2-->net 1.1.1.0/24(lo +public connection+default route to null 0) + 192.168.24.0/24 + 192.168.12/0 + eigrp + Eigrp Summarization on s1/1
R3-->networks 192.168.13.0/24 + 192.168.34.0/24
R4---> net 192.168.24.0/24 + 192.168.34.0/24 + Redistribution to ospf area 0 on s1/2 -->172.16.16.0/24 + default route of eigrp should be having tag  and metric-type e2 and rest should have tag and metric type e1. Do not allow 10.1.8.0/24 in the ospf. In ospf the default route should be the same as default route of the eigrp.

No auto summary in eigrp

R1
=================
!
!
interface Loopback1
 ip address 10.1.1.1 255.255.255.0
!
interface Loopback2
 ip address 10.1.2.1 255.255.255.0
!
interface Loopback3
 ip address 10.1.3.1 255.255.255.0
!
interface Loopback4
 ip address 10.1.4.1 255.255.255.0
!
interface Loopback5
 ip address 10.1.5.1 255.255.255.0
!
interface Loopback6
 ip address 10.1.6.1 255.255.255.0
!
interface Loopback7
 ip address 10.1.7.1 255.255.255.0
!
interface Loopback8
 ip address 10.1.8.1 255.255.255.0
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown 
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 192.168.12.1 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 ip address 192.168.13.1 255.255.255.0
 ip summary-address eigrp 100 10.1.0.0 255.255.248.0 5
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router eigrp 100
 network 10.1.0.0 0.0.255.255
 network 192.168.12.0
 network 192.168.13.0
 no auto-summary
!

=================

R2


interface Loopback100
 ip address 1.1.1.1 255.255.255.0
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 192.168.12.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 ip address 192.168.24.1 255.255.255.0
 ip summary-address eigrp 100 10.1.0.0 255.255.248.0 5
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router eigrp 100
 network 1.1.1.0 0.0.0.255
 network 192.168.12.0
 network 192.168.24.0
 auto-summary
!
ip http server
!
ip default-network 1.0.0.0
ip route 1.1.1.0 255.255.255.0 Null0
!
===========================================
R3

!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 192.168.13.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 ip address 192.168.34.1 255.255.255.0
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router eigrp 100
 network 192.168.13.0
 network 192.168.34.0
 auto-summary
!

=====================================
R4


!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 192.168.24.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 ip address 192.168.34.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/2
 ip address 172.16.16.1 255.255.255.0
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router eigrp 100
 network 192.168.24.0
 network 192.168.34.0
 auto-summary
!
router ospf 100
 log-adjacency-changes
 redistribute eigrp 100 subnets route-map eigrp2ospf
 network 172.16.16.0 0.0.0.255 area 0
 default-information originate
!
ip http server
!
!
!
access-list 2 permit 192.168.34.0 0.0.0.255
access-list 2 permit 192.168.13.0 0.0.0.255
access-list 2 permit 10.1.8.0 0.0.0.255
!
route-map eigrp2ospf permit 10
 match ip address 1
 set metric-type type-1
 set tag 10
!
route-map eigrp2ospf permit 20
 match ip address 2
 set tag 20
!
=======================================
R5

!
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 172.16.16.2 255.255.255.0
 serial restart-delay 0
!
interface Serial1/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial1/3
 no ip address
 shutdown
 serial restart-delay 0
!
router ospf 100
 log-adjacency-changes
 network 172.16.16.0 0.0.0.255 area 0
!




Posted by email2vm at 9:53 AM 0 comments

Sunday, January 30, 2011

forward metric ospf E2

i found a strange forward metric in the ospf "show ip route 192.168.1.0", but there is lot of meaning in to it
how to find the better router between two e2 routes



lo--->r1-(rip)--->r2--(ospf)--->r3

ospf area 10

lo:  192.168.1.1/24

r2:

do sh ip int bri
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            unassigned      YES unset  administratively down down  
FastEthernet0/1            unassigned      YES unset  administratively down down  
Serial1/0                  192.168.2.2     YES manual up                    up    
Serial1/1                  10.1.1.1        YES manual up                    up    


r3:

O E1 192.168.1.0/24 [110/84] via 10.1.1.1, 00:00:18, Serial1/0
O E2 192.168.2.0/24 [110/20] via 10.1.1.1, 00:00:18, Serial1/0


r3(config-router)#do sh ip route 192.168.1.0
Routing entry for 192.168.1.0/24
  Known via "ospf 10", distance 110, metric 84, type extern 1

(64+20=84 ::  64 is forward metric + 20 default)

r3(config-router)#do sh ip route 192.168.2.0 ---->E2
Routing entry for 192.168.2.0/24
  Known via "ospf 10", distance 110, metric 20, type extern 2, forward metric 64

(Forward Metric is actually the cost to reach the ASBR(r2). So the metric 64 is r3 to r2.  )

Why forward metric?

Consider two E2 routers with same metric 20. The best route is determined using the forward metric
Posted by email2vm at 11:42 AM 0 comments

Saturday, January 29, 2011

ah i am back

ah it was a great vacation. My parents were back in India, so i took a 10 day off and let to country side. i really had a great time and now rejuvenated. Ready to kick in.

done with my BGP :-)

Now back in the redistribution and learning to make things happy with route maps...they are superb(it took time to tame them)!!!

opened an account in the cisco community

and i could find whole lot of issues to try in my gns3.



Posted by email2vm at 12:51 PM 0 comments
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