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network cisco ccna gns3 certification arteq

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Friday, October 12, 2012

junos and eigrp...

just as i thought...

an eigrp enterprise does not necessarily have to migrate to opsf to include juniper in a cisco environment... as i surmised in the last post, just set up an ospf interface on the eigrp router, connect that to the juniper equipment and redistribute on the cisco side...


r1#sh ip route eigrp

Gateway of last resort is not set

      1.0.0.0/24 is subnetted, 1 subnets
D        1.1.1.0 [90/156160] via 10.1.1.2, 01:07:49, FastEthernet1/0
      2.0.0.0/24 is subnetted, 1 subnets
D        2.2.2.0 [90/156160] via 10.1.1.2, 01:07:49, FastEthernet1/0

r1#sh ip eigrp neigh
EIGRP-IPv4 Neighbors for AS(1)
H   Address                 Interface              Hold Uptime   SRTT   RTO  Q  Seq
                                                   (sec)         (ms)       Cnt Num
0   10.1.1.2                Fa1/0                    13 01:07:58  236  1416  0  4

r1 is connected to eigrp 1 on r2...  i set up f1/1 on r1 to connect to a juniper router to bridge the gap, and redistributed eigrp into ospf, and vice versa...

root@junos1> show route

inet.0: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

192.168.1.0/24     *[Direct/0] 00:58:53
                    > via em0.0
192.168.1.2/32     *[Local/0] 00:58:53
                      Local via em0.0
224.0.0.5/32       *[OSPF/10] 00:51:44, metric 1
                      MultiRecv

after two way redistribution on the cisco side...

router eigrp 1
 network 10.1.1.0 0.0.0.255
 redistribute ospf 1 metric 1 0 1 1 1500
!
router ospf 1
 redistribute eigrp 1 subnets
 network 192.168.1.0 0.0.0.255 area 0

we have...

r2#sh ip route eigrp

Gateway of last resort is not set

D EX  192.168.1.0/24 [170/2560002560] via 10.1.1.1, 00:01:35, FastEthernet1/0

root@junos1> show route

inet.0: 6 destinations, 6 routes (6 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

1.1.1.0/24         *[OSPF/150] 00:02:06, metric 20, tag 0
                    > to 192.168.1.1 via em0.0
2.2.2.0/24         *[OSPF/150] 00:02:06, metric 20, tag 0
                    > to 192.168.1.1 via em0.0
10.1.1.0/24        *[OSPF/150] 00:02:06, metric 20, tag 0
                    > to 192.168.1.1 via em0.0
192.168.1.0/24     *[Direct/0] 01:02:59
                    > via em0.0
192.168.1.2/32     *[Local/0] 01:02:59
                      Local via em0.0
224.0.0.5/32       *[OSPF/10] 00:55:50, metric 1
                      MultiRecv

root@junos1> ping 2.2.2.2
PING 2.2.2.2 (2.2.2.2): 56 data bytes
64 bytes from 2.2.2.2: icmp_seq=0 ttl=254 time=57.377 ms
64 bytes from 2.2.2.2: icmp_seq=1 ttl=254 time=62.538 ms
64 bytes from 2.2.2.2: icmp_seq=2 ttl=254 time=63.248 ms
^C
--- 2.2.2.2 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 57.377/61.054/63.248/2.616 ms

no problem... as expected... like peas and carrots...


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