10-09-2018 04:00 PM
Hello! I just started working as Office/IT admin of a start up Datacenter. We've purchased two blocks of IPv4 addresses from local fiber ISP. We want to make sure the servers secure. ISP advised us to set up IP Unicast. We are using a subnet mask of /24 to break down the blocks in to 32 Subnets with 8 hosts (5 total useable IPv4 addresses). Problem is my Networking chops are 10+ years old. So relearning this as I go.Here is the diagram I was given from the ISP.
subnet address 148.59.35.24
gateway address 148.59.35.25
host address range is 148.59.35.26-148.59.35.30
broadcast address 148.59.35.31
Switch: Cisco Catalyst 2960xr
Fiber ISP
I'm using this source:(https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960xr/software/15-0_2_EX1/routing/configuration_guide/b_rt_152ex1_2960-xr_cg/b_rt_152ex1_2960-xr_cg_chapter_011.html#d3590e8278a1635)
I've tried to follow guide but I am unable to ping the router address. I am sure I don't have the correct protocols and IP addresses assigned correctly. VLAN1 is running servers that are hosting websites and the Office network. Would like to reload switch, but I am unsure how long that process is and what effect it would have on the servers currently in use.
some error messages I am getting are:
Switch#config t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#interface gi1/0/4
Switch(config-if)#ip address 148.59.35.2 255.255.255.0
Switch(config-if)#no shut
Switch(config-if)#end
Switch#config t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#interface vlan 4
Switch(config-if)#ip address 148.59.35.27 255.255.255.248
% 148.59.35.24 overlaps with GigabitEthernet1/0/4
Switch(config-if)#ip address 148.59.35.27 255.255.255.0
% 148.59.35.0 overlaps with GigabitEthernet1/0/4
Switch(config-if)#end
Switch#show interface gi1/0/4
GigabitEthernet1/0/4 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is b4a8.b9e7.1b04 (bia b4a8.b9e7.1b04)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 4/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 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 never, output 00:00:00, 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 42000 bits/sec, 30 packets/sec
5 minute output rate 1712000 bits/sec, 3269 packets/sec
29949 packets input, 4733698 bytes, 0 no buffer
Received 22414 broadcasts (34 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 34 multicast, 0 pause input
0 input packets with dribble condition detected
2282691 packets output, 149987430 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
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
Here is the last running-config
Switch#show running-config
Building configuration...
Current configuration : 3680 bytes
!
! Last configuration change at 19:11:11 UTC Tue Oct 9 2018
! NVRAM config last updated at 23:26:09 UTC Mon Sep 17 2018
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Switch
!
boot-start-marker
boot-end-marker
!
no logging console
enable secret 5 $1$v2pU$N53ps.HMsHv5kWxyymaVE1
!
no aaa new-model
switch 1 provision ws-c2960xr-24ps-i
system mtu routing 1500
ip routing
!
!
!
!
!
!
!
!
!
crypto pki trustpoint TP-self-signed-3118930688
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-3118930688
revocation-check none
rsakeypair TP-self-signed-3118930688
!
!
crypto pki certificate chain TP-self-signed-3118930688
certificate self-signed 01
3082022B 30820194 A0030201 02020101 300D0609 2A864886 F70D0101 05050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 33313138 39333036 3838301E 170D3138 30393137 32333232
30325A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 31313839
33303638 3830819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100F825 4CD1E681 11ACE640 E7D1FE86 5F37769F E04ECE3C EF9510EE DBBBDE14
4EB032E9 16D8C9E0 70C8E640 4A966CB8 32562405 1C415885 A1A2324C CAF2711F
91EA34CE 46F40196 A2DD96C2 C1E95A31 343BA14A 804C93F4 A43F32E1 D5C0D66A
F0BD71F0 5ABB37B4 0776BC30 FB54C962 17151A53 DBD16742 E1F7DE59 E6E00545
48F30203 010001A3 53305130 0F060355 1D130101 FF040530 030101FF 301F0603
551D2304 18301680 1481F1B9 8EE4380A D469E4E0 DE12F47A 97BCF3DB 77301D06
03551D0E 04160414 81F1B98E E4380AD4 69E4E0DE 12F47A97 BCF3DB77 300D0609
2A864886 F70D0101 05050003 81810012 5C2DDD74 BDD2F3A1 F2CECE58 3080C403
24193E40 C76CC971 328C171C 7E81CD2A C8755763 E3EE102B 0DA8F0F6 EB029D44
C55238F4 10A99633 BCA4AC77 EC40E8C4 F629613A 1B1A57AF D1666622 3B9FB8C1
AA8C4AA2 D21BB71F 78D11BD4 7D48F6F4 3C05A19B 271BBADA AACD33A3 9AB07031
8F8D07C2 0440EC68 DB4220A5 A350E6
quit
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
!
!
!
!
interface Port-channel4
switchport access vlan 4
switchport trunk allowed vlan 4
switchport mode access
!
interface Port-channel13
!
interface FastEthernet0
no ip address
no ip route-cache
!
interface GigabitEthernet1/0/1
!
interface GigabitEthernet1/0/2
!
interface GigabitEthernet1/0/3
!
interface GigabitEthernet1/0/4
no switchport
ip address 148.59.35.2 255.255.255.0
!
interface GigabitEthernet1/0/5
!
interface GigabitEthernet1/0/6
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
!
interface GigabitEthernet1/0/11
!
interface GigabitEthernet1/0/12
!
interface GigabitEthernet1/0/13
!
interface GigabitEthernet1/0/14
!
interface GigabitEthernet1/0/15
!
interface GigabitEthernet1/0/16
!
interface GigabitEthernet1/0/17
!
interface GigabitEthernet1/0/18
!
interface GigabitEthernet1/0/19
!
interface GigabitEthernet1/0/20
!
interface GigabitEthernet1/0/21
!
interface GigabitEthernet1/0/22
!
interface GigabitEthernet1/0/23
!
interface GigabitEthernet1/0/24
!
interface GigabitEthernet1/0/25
!
interface GigabitEthernet1/0/26
!
interface GigabitEthernet1/0/27
!
interface GigabitEthernet1/0/28
!
interface Vlan1
no ip address
!
interface Vlan4
no ip address
!
ip default-gateway 170.249.129.177
ip forward-protocol nd
ip http server
ip http secure-server
!
ip route 0.0.0.0 0.0.0.0 148.59.35.0
!
!
!
no vstack
!
line con 0
line vty 0 4
login
line vty 5 15
login
!
end
Switch#show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi1/0/1, Gi1/0/2, Gi1/0/3
Gi1/0/5, Gi1/0/6, Gi1/0/7
Gi1/0/8, Gi1/0/9, Gi1/0/10
Gi1/0/11, Gi1/0/12, Gi1/0/13
Gi1/0/14, Gi1/0/15, Gi1/0/16
Gi1/0/17, Gi1/0/18, Gi1/0/19
Gi1/0/20, Gi1/0/21, Gi1/0/22
Gi1/0/23, Gi1/0/24, Gi1/0/25
Gi1/0/26, Gi1/0/27, Gi1/0/28
4 0004 active
13 VLAN0013 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
4 enet 100004 1500 - - - - - 0 0
13 enet 100013 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
I need to know:
What protocols to enable/disable
How do I resolve the IP address Overlap
I found it hard to decipher from the guilde which steps I needed to do and the steps I didn't. Could you provide a simplified list of steps so I am sure I am not missing steps as I go.
I know its a lot to ask, but help a Girl out! (I applied for IT assistant and ended up being the IT admin. I'm very happy to get back into IT after 10+ years, but this has been a stressful last few days!)
Thanks in advance!
10-11-2018 02:30 PM - edited 10-11-2018 02:31 PM
interface GigabitEthernet1/0/4
no switchport
ip address 148.59.35.2 255.255.255.0 <--- because of this you are not able to configure other IP
<--- as per your description you did subnetted with /24 subnet.
So change this to
config t
!
interface GigabitEthernet1/0/4
no ip address 148.59.35.2 255.255.255.0
ip address 148.59.35.2 255.255.255.248
!
end
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