[j-nsp] GRE Between Juniper and Cisco

[Ranjit Bahad]

They are connected over a 100Mbps WAN link.

-----Original Message-----
From: Erdem Sener [mailto:erdems at gmail.com] 
Sent: 19 October 2006 14:54
To: Ranjit Bahad
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] GRE Between Juniper and Cisco

Hi,

 How are these boxes are connected to each other?

 In first guess, it seems the problem is in some kind of switch between
them.

HTH

On 10/19/06, Ranjit Bahad <Ranjit_Bahad at inmarsat.com> wrote:
> Hi,
>
>
>
> I have a link services pic installed in a M10 and have configured a
GRE
> tunnel from this box to a Cisco router.
>
>
>
> Below are the configs:
>
>
>
> Juniper:
>
>
>
>   gr-1/0/0 {
>
>        unit 10 {
>
>            tunnel {
>
>                source 172.30.9.2;
>
>                destination 172.30.12.2;
>
>            }
>
>            family inet {
>
>                mtu 1514;
>
>                address 1.1.1.1/24;
>
>            }
>
>        }
>
>    }
>
>
>
> show interfaces gr-1/0/0
>
> Physical interface: gr-1/0/0, Enabled, Physical link is Up
>
>  Interface index: 147, SNMP ifIndex: 69
>
>  Type: GRE, Link-level type: GRE, MTU: Unlimited, Speed: 800mbps
>
>  Device flags   : Present Running
>
>  Interface flags: Point-To-Point SNMP-Traps
>
>  Input rate     : 0 bps (0 pps)
>
>  Output rate    : 0 bps (0 pps)
>
>
>
>  Logical interface gr-1/0/0.10 (Index 105) (SNMP ifIndex 86)
>
>    Flags: Point-To-Point SNMP-Traps 16384
>
>    IP-Header 172.30.12.2:172.30.9.2:47:df:64:0000000000000000
> Encapsulation: GRE-NULL
>
>  Input packets : 26
>
>  Output packets: 29
>
>    Protocol inet, MTU: 1514
>
>      Flags: User-MTU
>
>      Addresses, Flags: Is-Preferred Is-Primary
>
>        Destination: 1.1.1/24, Local: 1.1.1.1, Broadcast: 1.1.1.255
>
>
>
> Cisco:
>
>
>
> sh int tunnel 10
>
> Tunnel10 is up, line protocol is up
>
>  Hardware is Tunnel
>
>  Internet address is 1.1.1.2/24
>
>  MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
>
>     reliability 255/255, txload 1/255, rxload 1/255
>
>  Encapsulation TUNNEL, loopback not set
>
>  Keepalive not set
>
>  Tunnel source 172.30.12.2, destination 172.30.9.2, fastswitch TTL 255
>
>  Tunnel protocol/transport GRE/IP, key disabled, sequencing disabled
>
>  Tunnel TTL 255
>
>  Checksumming of packets disabled, fast tunneling enabled
>
>  Last input 00:09:41, output 00:05:06, output hang never
>
>  Last clearing of "show interface" counters never
>
>  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>
>  Queueing strategy: fifo
>
>  Output queue: 0/0 (size/max)
>
>  5 minute input rate 0 bits/sec, 0 packets/sec
>
>  5 minute output rate 0 bits/sec, 0 packets/sec
>
>  L2 Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
>
>  L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes mcast
>
>  L3 out Switched: ucast: 0 pkt, 0 bytes mcast: 0 pkt, 0 bytes
>
>     3 packets input, 888 bytes, 0 no buffer
>
>     Received 0 broadcasts (0 IP multicasts)
>
>     0 runts, 0 giants, 0 throttles
>
>     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
>
>     36 packets output, 4012 bytes, 0 underruns
>
>     0 output errors, 0 collisions, 0 interface resets
>
>     0 output buffer failures, 0 output buffers swapped out
>
> AMCORRTR02#
>
> AMCORRTR02#
>
> AMCORRTR02#sh run int tun
>
> AMCORRTR02#sh run int tunnel 10
>
> Building configuration...
>
>
>
> Current configuration : 118 bytes
>
> !
>
> interface Tunnel10
>
>  ip address 1.1.1.2 255.255.255.0
>
>  tunnel source 172.30.12.2
>
>  tunnel destination 172.30.9.2
>
> end
>
>
>
> Neither end of the tunnel can ping each other. Pinging the physical
IP's
> of each host router is ok. Any help will be greatly appreciated!
>
>
>
> Thanks,
>
>
>
> Raj.
>
>
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-- 
Erdem

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