11-08-2010 01:57 PM - edited 03-06-2019 01:57 PM
We have a 2911 with an EHWIC-D-8ESG-P and SRE-900 installed. A PC is connected to Gi0/3/0 and an upstream L3 switch, with a configured VLAN21 interface, is connected via Gi0/0.21.
The router can ping the upstream VLAN21 interface of 10.11.16.1 but can not ping the PC connected to the WIC switch on interface Gi0/3/0.
The PC on Gi0/3/0 is addressed 10.11.16.92.
VM Windows Server 2003 at 10.11.16.91 and they can ping each other.
**********************************************
2911 config info:
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
!
interface GigabitEthernet0/0.21
description PrimaryLAN
encapsulation dot1Q 21
ip address 10.11.16.98 255.255.255.0
!
interface GigabitEthernet0/3/0
switchport access vlan 21
spanning-tree portfast
!
interface Vlan21
ip unnumbered GigabitEthernet0/0.21
**********************************************
SRE info:
SRETest2# sh hypervisor vswitch
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch0 128 3 128 1500 vmnic2
PortGroup Name VLAN ID Used Ports Uplinks
VM Network VLAN 21 21 0 vmnic2
Solved! Go to Solution.
11-09-2010 10:37 AM
Hi,
Please do the following:
bridge irb
bridge 21 protocol ieee
bridge 21 route ip
interface GigabitEthernet0/0.21
description PrimaryLAN
encapsulation dot1Q 21
bridge-group 21
interface Vlan21
bridge-group 21
interface bvi 21
ip address 10.11.16.98 255.255.255.0
Make sure that you remove IP address from gig 0/0.21 and ip unnumber under vlan 21.
11-08-2010 06:13 PM
Issue from from the PC.
I wonder if you can provide the following output:
show ip arp 10.11.16.91
show ip arp 10.11.16.98
show mac address-table interface gig 0/3/0
I wonder if you want to configure IRB:
Put VLAN 21 and gi 0/0.21 on bridge group 21. Enable routing (bridge-group 21 route IP) on the router. It should work.
11-09-2010 09:26 AM
The laptop still is unable to ping the Gi0/0.21 or upsteam interface 10.11.16.1
**********************************************************
Configs added to the router:
bridge irb
interface GigabitEthernet0/0.21
description PrimaryLAN
encapsulation dot1Q 21
ip address 10.11.16.98 255.255.255.0
bridge-group 21
interface Vlan21
ip unnumbered GigabitEthernet0/0.21
bridge-group 21
**********************************************************
SREUnit2# ping 10.11.16.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.11.16.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
SREUnit2#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.11.16.1 128 0000.0c07.ac01 ARPA GigabitEthernet0/0.21
Internet 10.11.16.7 14 0012.4496.3580 ARPA GigabitEthernet0/0.21
Internet 10.11.16.98 - d0d0.fd93.a370 ARPA GigabitEthernet0/0.21
Internet 10.11.18.1 1 4000.0000.5474 ARPA GigabitEthernet0/0.21
Internet 192.168.74.50 - d0d0.fd93.a380 ARPA SM1/0
Internet 192.168.74.129 - d0d0.fd93.a373 ARPA Vlan1
SREUnit2#
SREUnit2#
SREUnit2#
SREUnit2#
SREUnit2#
SREUnit2#sh mac-address-table
EHWIC Slot: 3
Destination Address Address Type VLAN Destination Port
------------------- ------------ ---- -----------------
4000.000f.5474 Dynamic 21 GigabitEthernet0/3/0
d0d0.fd93.a373 Self 21 Vlan21
d0d0.fd93.a373 Self 1 Vlan1
SREUnit2#sh clock
10:53:27.744 CST Tue Nov 9 2010
SREUnit2#sh clock
10:58:28.540 CST Tue Nov 9 2010
SREUnit2#
********************************************
FYI
I case anyone notices and to avoid confusion, 4000.0000.5474 is my laptop and am connected via telnet to the router at 10.11.16.98 (hence in the arp table) and the test laptop connected to Gi0/3/0 is 4000.000f.5474. Yep, I use LAA for ease of troubleshooting issues.
11-09-2010 10:37 AM
Hi,
Please do the following:
bridge irb
bridge 21 protocol ieee
bridge 21 route ip
interface GigabitEthernet0/0.21
description PrimaryLAN
encapsulation dot1Q 21
bridge-group 21
interface Vlan21
bridge-group 21
interface bvi 21
ip address 10.11.16.98 255.255.255.0
Make sure that you remove IP address from gig 0/0.21 and ip unnumber under vlan 21.
11-09-2010 12:45 PM
All is working. Thanks for your assistance. It is greatly appreciated.
Test laptop on Gi0/3/0 able to ping VMServer at 10.11.16.92 and gateways at 10.11.16.1
VMServer able to ping laptop and gateway.
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