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trunking and subinterfaces

Tejas Kunte
Level 1
Level 1

the attached image shows what i am trying to achieve

i need to establish connectivity from subnets 10.30.5.X and 10.30.6.X (in VLAN1 and VLAN2 respectively) to subnet 10.11.35.X

i have a trunk port on my cisco 2960 that is connected to GiE0/0 on my Cisco ASA that has 2 sub-interfaces with IPs in the subnets mentioned above

my problem is i can only connect to 10.30.6.X from 10.11.35.X (and vice versa), but no connectivty to 10.30.5.X

am i missing something obvious ?

3 Replies 3

cadet alain
VIP Alumni
VIP Alumni

Hi,

can you provide configs from both devices.

Regards.

Alain

Don't forget to rate helpful posts.

i have 2 switches (have attached the config for 1, 2nd switch has the same config) and 2 ASAs in a active-passive config

port 45 on each switch (which is trunked) goes to int 0/6 on each asa

switch config

spanning-tree mode pvst

spanning-tree extend system-id

!

vlan internal allocation policy ascending

!

!

!

interface Port-channel1

switchport mode trunk

!

interface GigabitEthernet0/1

switchport mode access

!

interface GigabitEthernet0/2

switchport mode access

!

interface GigabitEthernet0/3

switchport mode access

!

interface GigabitEthernet0/4

switchport mode access

!

interface GigabitEthernet0/5

switchport mode access

!

interface GigabitEthernet0/6

switchport mode access

!

interface GigabitEthernet0/7

switchport mode access

!

interface GigabitEthernet0/8

switchport mode access

!

interface GigabitEthernet0/9

switchport mode access

!

interface GigabitEthernet0/10

switchport mode access

!

interface GigabitEthernet0/11

switchport mode access

!

interface GigabitEthernet0/12

switchport mode access

!

interface GigabitEthernet0/13

switchport mode access

!

interface GigabitEthernet0/14

switchport mode access

!

interface GigabitEthernet0/15

switchport mode access

!

interface GigabitEthernet0/16

switchport mode access

!

interface GigabitEthernet0/17

switchport mode access

!

interface GigabitEthernet0/18

switchport mode trunk

channel-group 1 mode active

spanning-tree portfast trunk

!

interface GigabitEthernet0/19

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/20

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/21

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/22

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/23

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/24

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/25

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/26

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/27

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/28

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/29

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/30

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/31

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/32

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/33

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/34

switchport mode trunk

channel-group 1 mode active

spanning-tree portfast trunk

!

interface GigabitEthernet0/35

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/36

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/37

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/38

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/39

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/40

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/41

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/42

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/43

switchport access vlan 3

switchport mode access

!

interface GigabitEthernet0/44

switchport access vlan 2

switchport mode access

!

interface GigabitEthernet0/45

switchport mode trunk

!

interface GigabitEthernet0/46

!

interface GigabitEthernet0/47

!

interface GigabitEthernet0/48

switchport mode trunk

spanning-tree portfast trunk

!

interface Vlan1

ip address 10.30.5.6 255.255.255.0

no ip route-cache

!

ip default-gateway 10.30.5.1

ip http server

ip http secure-server

logging trap notifications

ASA config

ASA Version 8.4(2)

!

hostname ecw17fw001

enable password z9EBartb5mE1xA7Y encrypted

passwd l/6WBlFb8xG4avQC encrypted

names

!

interface GigabitEthernet0/0

nameif WAN

security-level 0

ip address 207.211.113.4 255.255.255.240 standby 207.211.113.5

!

interface GigabitEthernet0/1

nameif DMZ

security-level 50

ip address 207.211.113.17 255.255.255.240 standby 207.211.113.18

!

interface GigabitEthernet0/2

nameif Production

security-level 100

ip address 10.11.35.1 255.255.255.0 standby 10.11.35.2

!

interface GigabitEthernet0/3

nameif Mgmt

security-level 100

ip address 10.11.34.1 255.255.255.0 standby 10.11.34.2

!

interface GigabitEthernet0/4

nameif MPLS

security-level 100

ip address 10.255.8.2 255.255.255.0 standby 10.255.8.3

!

interface GigabitEthernet0/5

shutdown

no nameif

no security-level

no ip address

!

interface GigabitEthernet0/6

no nameif

no security-level

no ip address

!

interface GigabitEthernet0/6.1

shutdown

vlan 1

nameif ASP8-Mgmt

security-level 90

ip address 10.30.5.19 255.255.255.0 standby 10.30.5.20

!

interface GigabitEthernet0/6.2

shutdown

vlan 2

nameif ASP8-Prod

security-level 100

ip address 10.30.6.19 255.255.255.0 standby 10.30.6.20

Tejas Kunte

I.T. Operations

eClinicalWorks

2 Technology Drive | Westborough, MA 01581

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fb_webuser
Level 6
Level 6

You do not need sub interfaces I think.

If you define the 3 vlans and configure the ip address on the vlan you should get routing between all 3

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Posted by WebUser Stuart Gall