08-16-2007 08:06 AM - edited 03-05-2019 05:56 PM
Question, I have a 3560 switch with 1 G0/0 enabled, 1 serial port with a subinterface. I have configure the both ports and the default gateway yet, when I do a sh ip route I received the following error Default-Gateway not set. I've even tried to use the actual ip address. I still receive the same error any suggestions?
!
interface Serial0/0/0
description ISP Circuit
no ip address
ip access-group 10 in
ip access-group 10 out
no ip proxy-arp
encapsulation frame-relay IETF
clockrate 2000000
interface Serial0/0/0.1 point-to-point
description connected to Internet
ip address x.x.x.x
ip access-group 10 in
ip access-group 10 out
no ip mroute-cache
frame-relay interface-dlci 384
!
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0/0/0.1
or
ip route 0.0.0.0 0.0.0.0 X.X.X.X
Thanks
08-16-2007 08:11 AM
Ernest
Is ip routing enabled? If routing is enabled then the default route is frequently referred to as gateway of last resort. When it talks about default gateway not being defined it sounds like it is still operating as a layer 2 switch which expects to have configuered ip default-gateway x.x.x.x and not ip route 0.0.0.0.
Perhaps you could post the config of the 3560 and also the exact syntax of the error message?
HTH
Rick
08-20-2007 04:22 AM
Thanks,
I have attached the error and config file
sho 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, * - didate default, U - per-user static route o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ######
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
!
resource policy
!
ip subnet-zero
no ip source-route
!
!
ip cef
no ip dhcp use vrf connected
!
!
no ip bootp server
ip domain name #########
ip name-server #########
ip name-server #########
ip ssh time-out 60
ip ssh authentication-retries 2
ip ssh version 2
no ip ips deny-action ips-interface
!
!
!
username ########
!
interface GigabitEthernet0/0
description SonicWall-WAN-Port
ip address #############
no ip proxy-arp
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
no ip proxy-arp
shutdown
duplex auto
speed auto
no cdp enable
!
interface Serial0/0/0
description ISP Circuit
no ip address
ip access-group 101 in
ip access-group 101 out
no ip proxy-arp
encapsulation frame-relay IETF
clockrate 2000000
!
interface Serial0/0/0.1 point-to-point
description connected to Internet
ip address #################
ip access-group 101 in
ip access-group 101 out
no ip mroute-cache
frame-relay interface-dlci 384
!
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0/0/0.1
!
!
no ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 600 life 86400 requests 10000
!
logging ##############
access-list 101 deny tcp any any eq 11 log
!
!
control-plane
!!
banner motd ^CC
**WARNING**WARNING**WARNING**
####################
**WARNING**WARNING**WARNING**^C
!
line con 0
exec-timeout 5 0
login local
speed 115200
line aux 0
login
no exec
line vty 0 4
exec-timeout 5 0
privilege level 15
login local
transport input ssh
transport output none
line vty 5 15
exec-timeout 5 0
privilege level 15
login local
transport input none
transport output none
!
scheduler allocate 20000 1000
ntp clock-period 17179987
ntp source Serial0/0/0
ntp server ########
08-20-2007 04:35 AM
Hi
Can u verify if u r interfaces are up/up.
Thanks
Mahmood
08-20-2007 04:55 AM
Yes, they are all up except G0/1 which is admin down?
08-20-2007 06:06 AM
Hi,
The reason is like Rick has stated earlier you must have "ip routing" command, one comment though, i doubt that this is a 3560 switch as 3560 has no serial interfaces.
HTH,
Mohammed Mahmoud.
08-20-2007 06:12 AM
My fault....It's not a 3560 switch, it's a 2851 Router!!!
08-20-2007 06:13 AM
Hi,
Ok, perfect, just enter "ip routing" and it will work fine.
HTH,
Mohammed Mahmoud.
08-20-2007 06:18 AM
Ernest
Thanks for the clarification. The config (especially the serial interface) makes much more sense as a 2851 than it does as a 3560. Would you post the output of show protocol and of show version, and perhaps of show ip interface brief?
[edit] Mohammed I just saw your post. I believe the issue of "ip routing" is very likely if the device really was a layer 3 switch as we originally believed. If the device is a 2851 router then ip routing should be enabled by default. I am no longer sure that this is the issue.
HTH
Rick
08-20-2007 06:28 AM
Hi Rick,
I totally agree with you, and more over i've checked one of my 2800 and ip routing doesn't appear in the sh run as a default configuration (i doubted when i didn't saw it in Ernest config thinking that it must appear, but no), and thus my assumption is that the interfaces are not up/up, and i think that Ernest shall clear this out for us.
HTH,
Mohammed Mahmoud.
08-20-2007 06:38 AM
Not sure myself, Note: I have 30 additional "2851" on my einterprise with the same basic configuration without this issue?
Show Protocal
Global values:
Internet Protocol routing is enabled
GigabitEthernet0/0 is up, line protocol is down
Internet address is X.X.X.X
GigabitEthernet0/1 is administratively down, line protocol is down
Serial0/0/0 is down, line protocol is down
Serial0/0/0.1 is down, line protocol is down
Internet address is X.X.X.X
Show Version
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(1a),
RELEASE SOFTWARE (fc2)
ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)
uptime is 6 days, 1 hour, 58 minutes
System returned to ROM by power-on
System image file is "flash:c2800nm-advipservicesk9-mz.124-1a.bin"
Cisco 2851 (revision 53.51) with 249856K/12288K bytes of memory.
Processor board ID FTX0935A1MC
2 Gigabit Ethernet interfaces
1 Serial(sync/async) interface
2 Virtual Private Network (VPN) Modules
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x3922
sho ip int br
Interface IP-Address OK? Method Status Prot
GigabitEthernet0/0 X.X.X.X YES NVRAM up down
GigabitEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/0/0 unassigned YES NVRAM down down
Serial0/0/0.1 X.X.X.X YES NVRAM down
08-20-2007 06:44 AM
Ernest
The answer is in the output that you posted:
Serial0/0/0.1 is down, line protocol is down
The syntax of your static default route is correct. But if the interface that the static route points to is protocol down then the route will not be placed into the routing table. Therefore there currently is no Gateway of Last Resort. To get the Gateway of Last Resort into the routing table you need to resolve the issue with the Serial/Frame Relay connection.
HTH
Rick
08-20-2007 07:04 AM
I made the change on both S0/0/0 and s0/0/0.1 "No shutdown" however, It's still has the "Gateway not set message".
Note: there is currently no connection to the serial port... I'm in and out via hyperterminal
08-20-2007 07:10 AM
Ernest
Given the information that you posted:
Serial0/0/0 is down, line protocol is down
Serial0/0/0.1 is down, line protocol is down
This is not an issue that can be fixed by no shutdown (as you have discovered) but is probably an issue with the physical connection. When a serial interface reports status of line is down that means that the interface is not seeing electrical signals from the interface. Either it is disconnected or whatever it is connected to is powered off (or some other similar type of problem). You need to address the connectivity problem. I do not see any evidence of a configuration problem. It look like a physical layer problem to me.
HTH
Rick
08-20-2007 07:15 AM
Ernest,
Totally agree with Rick, this is a physical issue, make sure that your cables are well connected and review this with your provider, and once you have the serial interface up/up the route will be injected into the routing table.
HTH,
Mohammed Mahmoud.
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