11-07-2012 07:48 PM - edited 03-04-2019 06:04 PM
Dear Team,
We have two routers A & B. We need to terminate 10Mbps link between these two routers. We have got ether output on both the ends.
So at A we have Fast ethernet port for which we can terminate the link.
At B end We does not have Free ethernet port. So we have terminated the WAN link to Core switch gig ehetnet port and configured VLAN which was given by ISP. so there is a uplink from Router to switch and it is trunk and the vlan 225 is allowed in trunk. But we could not able to ping end to end IP's. We have tried swapping the ports also.
If we bypass the router and switch and directly connects the Laptops with VLAN enabled we could able to ping. So please go through the below configuration and suggest the solution and possible root cause at the earliest.
Ar router A.
A#sh run interface fa0/1
Building configuration...
Current configuration : 73 bytes
!
interface FastEthernet0/1
no ip address
speed auto
full-duplex
end
A#sh run interface fa0/1.1
Building configuration...
Current configuration : 177 bytes
!
interface FastEthernet0/1.1
encapsulation dot1Q 225
ip address 10.171.176.106 255.255.255.252
no snmp trap link-status
end
A#sh int fa0/1
FastEthernet0/1 is up, line protocol is up
Hardware is Gt96k FE, address is 0007.0e7a.aa69 (bia 0007.0e7a.aa69)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:19, output 00:00:02, 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: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
4822 packets input, 710305 bytes
Received 4811 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
8602 packets output, 803249 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
ip route 0.0.0.0 0.0.0.0 10.171.176.105
At end B
In router
Current configuration : 278 bytes
!
interface GigabitEthernet0/1
mtu 1600
no ip address
ip verify unicast reverse-path
no ip redirects
no ip unreachables
no ip proxy-arp
ip pim sparse-mode
ip igmp query-interval 125
media-type rj45
speed 100
duplex full
no negotiation auto
no clns route-cache
end
B#sh run interface gi0/1.6
Building configuration...
Current configuration : 134 bytes
!
interface GigabitEthernet0/1.6
description ATI 10 MB LINK
encapsulation dot1Q 225
ip address 10.171.176.105 255.255.255.252
end
ip route 10.171.179.0 255.255.255.0 10.171.176.106-------------------Reverse route for LAN at end A
In L2 switch
interface GigabitEthernet1/0/21--------------------WAN link terminated port from end A.
switchport access vlan 225
switchport trunk allowed vlan 225
duplex full
end
L2-MGMT#sh int gigabitEthernet 1/0/21
GigabitEthernet1/0/21 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 40f4.ec71.7315 (bia 40f4.ec71.7315)
Description: ATI
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, Auto-speed, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 15:46:45, output 15:45:49, 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: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
18 packets input, 4780 bytes, 0 no buffer
Received 18 broadcasts (13 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 13 multicast, 0 pause input
0 input packets with dribble condition detected
15365 packets output, 1163615 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
L2-MGMT#sh run interface Gi1/0/24
Building configuration...
Current configuration : 110 bytes
!
interface GigabitEthernet1/0/24
description # ROUTER #
switchport mode trunk
speed 100
duplex full
end
Sh vlan
225 VLAN0225 active Gi1/0/21
Please clarify,
Thanks in advance
11-07-2012 11:11 PM
11-13-2012 11:02 AM
interface GigabitEthernet1/0/21--------------------WAN link terminated port from end A.
switchport access vlan 225
switchport trunk allowed vlan 225
duplex full
end
Is this a trunk or an access interface? You need to configure one or the other. I am assuming this is a trunk so you will need to set the trunk mode and the correct encapsulation.
11-13-2012 11:31 AM
Good Finding Rick,
I was follwing this post and you apt for the rating
Regards
Thanveer
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