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New Member

two routable interfaces to switch-unable to ping or telnet switch

I have a 4506 catalyst switch with no ip address

the cdp neighbor info is as follows (all neighbors in the 119 subnet /24 mask)

CAT11#sh cdp neigh det

Device ID: router1
Entry address(es):
  IP address: 192.168.119.241
Platform: Cisco 3825,  Capabilities: Router Switch IGMP

Device ID: CAT3
Entry address(es):
Platform: cisco WS-C4006,  Capabilities: Router Switch IGMP

Device ID: router2
Entry address(es):
  IP address: 192.168.119.246
  IP address: 192.168.120.1
Platform: Cisco 3845,  Capabilities: Router Switch IG MP

Device ID: MR1consoleacess
Entry address(es):
  IP address: 192.168.119.250
Platform: cisco 2620,  Capabilities: Router

I am trying to configure remote access on the switcch

I give vlan 1 ip address of 192.168.119.150 /24

cdp information is passed to the other router neighbors...but I can not ping or even telnet to them

even from device 192.168.119.1 (hsrp vip address of the first cdp neigbor listed)

i do a show ip route and get this

CAT11sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

C    192.168.119.0/24 is directly connected, Vlan1
CAT11#

is the fact that there are multiple routable interfaces in the .119 subnet an issue?


VLAN Name
---- ------------------
1    default
94   Workstation_Net
119  Server_Net
1002 fddi-default
1003 token-ring-default
1004 fddinet-default
1005 trnet-default

I have even tried giving vlan 119 an ip address and no luck

10 REPLIES
VIP Super Bronze

Re: two routable interfaces to switch-unable to ping or telnet s

Hi,

Is the vlan in up up position?

can you issue this command:

sh ip int bri vla 1

Also, did you add on interface to VLAN 1? because without on interface the VLAN will not come up.

You should not use VLAN 1 for your inband managment or for user data.

HTH

Reza

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

CAT11#sh ip int br
Interface              IP-Address      OK? Method Status                Protocol
Vlan1                  192.168.119.150 YES manual up                    up

#sh int vlan 1
Vlan1 is up, line protocol is up
  Hardware is Ethernet SVI, address is 000c.cee3.4cff (bia 000c.cee3.4cff)
  Internet address is 192.168.119.150/24
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, 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

ping 192.168.119.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.119.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
#

now from router

router1#sh cdp ne det
-------------------------
Device ID: CAT11.IAD1
Entry address(es):
  IP address: 192.168.119.150
Platform: cisco WS-C4006,  Capabilities: Router Switch IGMP
Interface: GigabitEthernet0/1,  Port ID (outgoing port): FastEthernet2/48

router1# sh stand

GigabitEthernet0/1 - Group 100
  State is Active
    4 state changes, last state change 19w5d
  Virtual IP address is 192.168.119.1
  Active virtual MAC address is 0000.0c07.ac64
    Local virtual MAC address is 0000.0c07.ac64 (v1 default)
  Hello time 3 sec, hold time 10 sec
    Next hello sent in 0.016 secs
  Preemption enabled
  Active router is local
  Standby router is 192.168.119.242, priority 10 (expires in 9.380 sec)

router1#ping 192.168.119.150

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.119.150, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

Silver

Re: two routable interfaces to switch-unable to ping or telnet s

From either of the devices connected to CAT11 can you do a sh cdp neigh detail and see what the other devices see?

Is this the only device in this subnet you cannot telnet to or ping?

I assume that this /24 is being used for management only?

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

yep...i can see the cat11 switch and its IP  when i do a sh cdp neigh det from th other two devices

there are other devices on the subnet and I can ping and telnet to them from the gateway and from other subnets

..this is a /24 subnet...but we also have hosts on that subnet with no issues--not just management

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

.

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

pls show me the whole infomations of show vlan and show cdp nei detail  and show arp on this 4506.

if other cdp neighbors are in different vlans, you surely cannot ping them.

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

CAT11.#sh cdp ne det
-------------------------
Device ID: FW1.
Entry address(es):
  IP address: 192.168.119.241
Platform: Cisco 3825,  Capabilities: Router Switch IGMP
Interface: FastEthernet2/48,  Port ID (outgoing port): GigabitEthernet0/1
Holdtime : 179 sec

Version :
Cisco IOS Software, 3800 Software (C3825-ADVSECURITYK9-M), Version 12.4(3d), REL
EASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Wed 19-Apr-06 04:23 by alnguyen

advertisement version: 2
VTP Management Domain: ''
Duplex: full
Management address(es):

-------------------------
Device ID: CAT3.
Entry address(es):
Platform: cisco WS-C4006,  Capabilities: Router Switch IGMP
Interface: GigabitEthernet1/1,  Port ID (outgoing port): GigabitEthernet1/2
Holdtime : 168 sec

Version :
Cisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12
.2(25)EWA8, RELEASE SOFTWARE (fc1)
Te

-------------------------
Device ID: XR1.
Entry address(es):
  IP address: 192.168.119.246
  IP address: 192.168.120.1
Platform: Cisco 3845,  Capabilities: Router Switch IGMP
Interface: FastEthernet2/1,  Port ID (outgoing port): GigabitEthernet0/0
Holdtime : 135 sec

Version :
Cisco IOS Software, 3800 Software (C3845-ADVIPSERVICESK9-M), Version 12.4(8), RE

-------------------------
Device ID: MR1.
Entry address(es):
  IP address: 192.168.119.250
Platform: cisco 2620,  Capabilities: Router
Interface: FastEthernet2/2,  Port ID (outgoing port): FastEthernet0/0
Holdtime : 163 sec

Version :
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IO3-M), Version 12.1(5)T15,  RELEASE SOFTWARE (fc

CAT11.IAD1#

CAT11.#sh vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi1/2
94   Workstation_Net                  active
119  Server_Net                       active    Fa2/1, Fa2/2, Fa2/3, Fa2/4
                                                Fa2/5, Fa2/6, Fa2/7, Fa2/8
                                                Fa2/9, Fa2/10, Fa2/11, Fa2/12
                                                Fa2/13, Fa2/14, Fa2/15, Fa2/16
                                                Fa2/17, Fa2/18, Fa2/19, Fa2/20
                                                Fa2/21, Fa2/22, Fa2/23, Fa2/24
                                                Fa2/25, Fa2/26, Fa2/27, Fa2/28
                                                Fa2/29, Fa2/30, Fa2/31, Fa2/32
                                                Fa2/33, Fa2/34, Fa2/35, Fa2/36
                                                Fa2/37, Fa2/38, Fa2/39, Fa2/40
                                                Fa2/41, Fa2/42, Fa2/43, Fa2/44
                                                Fa2/45, Fa2/46, Fa2/47, Fa2/48
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup

CAT11.#sho ip arp
Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  192.168.119.150         -   000c.cee3.4cff  ARPA   Vlan1
CAT11.

CAT11.#sho ip arp
Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  192.168.119.150         -   000c.cee3.4cff  ARPA   Vlan1
CAT11.#sh ip int br
Interface              IP-Address      OK? Method Status                Protocol
Vlan1                  192.168.119.150 YES manual up                    up
GigabitEthernet1/1     unassigned      YES unset  up                    up
GigabitEthernet1/2     unassigned      YES unset  down                  down
FastEthernet2/1        unassigned      YES unset  up                    up

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

most of the ports linking to other device are in vlan 119

but you have configured ip address on vlan 1, and this lead the poor result.

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

hmm it worked

that doesnt make sense..considering we have mangement networks in other areas..where the vlan 1 ip subnet  for management is different

from subenets and vlans that other devices are connected to the switch

New Member

Re: two routable interfaces to switch-unable to ping or telnet s

and i added the ip default-gw address to switch cat11..but i was unable to

telnet to it from a different subnet..

I tried both routable interfaces that are listed in the cd neighbor of the switch..FW and XR1

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