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Tuesday, March 11, 2025

Administration VLAN – Community Engineering Stack Change


You possibly can see the topology within the image under. I’ve configured the administration VLAN on the change to be VLAN 999 to separate the administration site visitors from person site visitors. I’ve additionally configured SVI 999 with an IP deal with of 10.10.10.2/24. The default gateway is already configured on the change as nicely (which is 10.10.10.1, pointing to the router’s subinterface).

I believe I’ve finished all the pieces accurately, however I nonetheless can’t attain 10.10.10.2 from PC2 to configure the change.

What’s incorrect?

Thanks prematurely!

Router Configurations:

interface GigabitEthernet0/0
 no ip deal with
 duplex auto
 velocity auto
 media-type rj45
!
interface GigabitEthernet0/0.10
 encapsulation dot1Q 10
 ip deal with 192.168.10.1 255.255.255.0
!
interface GigabitEthernet0/0.20
 encapsulation dot1Q 20
 ip deal with 192.168.20.1 255.255.255.0
!
interface GigabitEthernet0/0.999
 encapsulation dot1Q 999
 ip deal with 10.10.10.1 255.255.255.0
!
interface GigabitEthernet0/1
 ip deal with 172.16.1.1 255.255.255.0
 duplex auto
 velocity auto
 media-type rj45
!

Output of present ip route command:

Gateway of final resort shouldn't be set

      10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        10.10.10.0/24 is immediately related, GigabitEthernet0/0.999
L        10.10.10.1/32 is immediately related, GigabitEthernet0/0.999
      172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C        172.16.1.0/24 is immediately related, GigabitEthernet0/1
L        172.16.1.1/32 is immediately related, GigabitEthernet0/1
      192.168.10.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.10.0/24 is immediately related, GigabitEthernet0/0.10
L        192.168.10.1/32 is immediately related, GigabitEthernet0/0.10
      192.168.20.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.20.0/24 is immediately related, GigabitEthernet0/0.20
L        192.168.20.1/32 is immediately related, GigabitEthernet0/0.20

Swap Configurations:

interface GigabitEthernet0/0
 switchport trunk encapsulation dot1q
 switchport mode trunk
 negotiation auto
!
interface GigabitEthernet0/1
 switchport entry vlan 10
 switchport mode entry
 negotiation auto
!
interface GigabitEthernet0/2
 switchport entry vlan 20
 switchport mode entry
 negotiation auto
!
interface Vlan999
 ip deal with 10.10.10.1 255.255.255.0
!
ip default-gateway 10.10.10.1

Output of present inter trunk & present ip inter br:

Swap#present interfaces trunk 

Port        Mode             Encapsulation  Standing        Native vlan
Gi0/0       on               802.1q         trunking      1

Port        Vlans allowed on trunk
Gi0/0       1-4094

Port        Vlans allowed and energetic in administration area
Gi0/0       1,10,20,999

Port        Vlans in spanning tree forwarding state and never pruned
Gi0/0       1,10,20,999
Swap#present ip interface temporary 
Interface              IP-Tackle      OK? Methodology Standing                Protocol
GigabitEthernet0/0     unassigned      YES unset  up                    up      
GigabitEthernet0/1     unassigned      YES unset  up                    up      
GigabitEthernet0/2     unassigned      YES unset  up                    up      
GigabitEthernet0/3     unassigned      YES unset  down                  down    
GigabitEthernet1/0     unassigned      YES unset  down                  down    
GigabitEthernet1/1     unassigned      YES unset  down                  down    
GigabitEthernet1/2     unassigned      YES unset  down                  down    
GigabitEthernet1/3     unassigned      YES unset  down                  down    
GigabitEthernet2/0     unassigned      YES unset  down                  down    
GigabitEthernet2/1     unassigned      YES unset  down                  down    
GigabitEthernet2/2     unassigned      YES unset  down                  down    
GigabitEthernet2/3     unassigned      YES unset  down                  down    
GigabitEthernet3/0     unassigned      YES unset  down                  down    
GigabitEthernet3/1     unassigned      YES unset  down                  down    
GigabitEthernet3/2     unassigned      YES unset  down                  down    
GigabitEthernet3/3     unassigned      YES unset  down                  down
Vlan999                10.10.10.1      YES guide up                    up   

Here is what occurs when i attempt to ping 10.10.10.1 from PC1:

PC1>ping 10.10.10.1

10.10.10.2 icmp_seq=1 timeout
10.10.10.2 icmp_seq=2 timeout
10.10.10.2 icmp_seq=3 timeout
10.10.10.2 icmp_seq=4 timeout
10.10.10.2 icmp_seq=5 timeout

PC1 Configurations:

NAME        : PC1[1]
IP/MASK     : 192.168.10.10/24
GATEWAY     : 192.168.10.1
DNS         : 
MAC         : 00:50:79:66:68:00
LPORT       : 10010
RHOST:PORT  : 127.0.0.1:10011
MTU         : 1500

enter image description here

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