Dynamips Crashing

Monkerz

Hey Guys/Gals,

Was wondering if someone has had this issue or not. I am currently working with GNS3 on an OSPF/FR lab. I get to a certain point with success, then when I want to change up my config from using OSPF neighbor statements to using point-to-multipoint network type interfaces, Dynamips decides to crash leaving me with no console access.

My configs and topology is below. The Dynamips crashes 5 seconds after input the last command below:

Image used: c2600-i-mz.123-10.bin (unpacked)

R4:
int ser 0/0
no ip ospf pri 0
router ospf 1
no neighbor 10.1.123.1

R2:
int ser 0/0
no ip ospf pri 0
router ospf 1
no neighbor 10.1.123.1

R1:
router ospf 1
no neighbor 10.1.123.2
no neighbor 10.1.123.3

!
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
[B]hostname R1[/B]
!
boot-start-marker
boot-end-marker
!
!
memory-size iomem 15
no aaa new-model
ip subnet-zero
ip cef
!
!
no ip domain lookup
!
!
!
!
!
interface Loopback1
 ip address 10.1.1.1 255.255.255.0
 ip ospf network point-to-point
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0
 ip address 10.1.123.1 255.255.255.0
 encapsulation frame-relay IETF
 frame-relay map ip 10.1.123.1 102
 frame-relay map ip 10.1.123.2 102
 frame-relay map ip 10.1.123.3 103
 no frame-relay inverse-arp
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
router ospf 1
 log-adjacency-changes
 network 10.1.1.0 0.0.0.255 area 0
 network 10.1.123.0 0.0.0.255 area 0
 neighbor 10.1.123.2
 neighbor 10.1.123.3
!
no ip http server
ip classless
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
 login
!
!
end

!
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
[B]hostname R2[/B]
!
boot-start-marker
boot-end-marker
!
!
memory-size iomem 15
no aaa new-model
ip subnet-zero
ip cef
!
!
no ip domain lookup
!
!
!
!
!
interface Loopback2
 ip address 10.1.2.1 255.255.255.0
 ip ospf network point-to-point
!
interface FastEthernet0/0
 ip address 10.1.23.2 255.255.255.0
 duplex auto
 speed auto
!
interface Serial0/0
 ip address 10.1.123.2 255.255.255.0
 encapsulation frame-relay IETF
 ip ospf priority 0
 clockrate 64000
 frame-relay map ip 10.1.123.1 201
 frame-relay map ip 10.1.123.2 201
 frame-relay map ip 10.1.123.3 201
 no frame-relay inverse-arp
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
router ospf 1
 log-adjacency-changes
 network 10.1.2.0 0.0.0.255 area 0
 network 10.1.123.0 0.0.0.255 area 0
!
no ip http server
ip classless
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
 login
!
!
end

!
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
[B]hostname R4[/B]
!
boot-start-marker
boot-end-marker
!
!
memory-size iomem 15
no aaa new-model
ip subnet-zero
ip cef
!
!
no ip domain lookup
!
!
!
!
!
interface Loopback3
 ip address 10.1.3.1 255.255.255.0
 ip ospf network point-to-point
!
interface FastEthernet0/0
 ip address 10.1.23.3 255.255.255.0
 duplex auto
 speed auto
!
interface Serial0/0
 ip address 10.1.123.3 255.255.255.0
 encapsulation frame-relay IETF
 ip ospf priority 0
 frame-relay map ip 10.1.123.1 301
 frame-relay map ip 10.1.123.2 301
 frame-relay map ip 10.1.123.3 301
 no frame-relay inverse-arp
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
router ospf 1
 log-adjacency-changes
 network 10.1.3.0 0.0.0.255 area 0
 network 10.1.123.0 0.0.0.255 area 0
!
no ip http server
ip classless
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
 login
!
!
end

ehnde

Have you tried this lab with a 3640 IOS image instead of the 2600?

tomaifauchai

Does it crash everytime you do this command or randomly?
Dynamips isn't reputed to be a very stable application (At least, under windows) !

Everytime i use it, it crash 1-2 times per 3-4 hours session

Monkerz

ehnde wrote: »

Have you tried this lab with a 3640 IOS image instead of the 2600?

I haven't tried it with any other image. I use this desktop as my demo PRTG monitor server, with the 3725 image I have, even using an IDLEPC value, still uses a considerable amount of my CPU which PRTG doesn't like.

Monkerz

tomaifauchai wrote: »

Does it crash everytime you do this command or randomly?
Dynamips isn't reputed to be a very stable application (At least, under windows) !

Everytime i use it, it crash 1-2 times per 3-4 hours session

It has only happened three times, but that is because I forget to save my configs and topology and have to start all over again, thus I gave up. Gets kind of frustrating when you have to start all over again three different times.

I am running Win 7 32-bit, and as soon as I input the no neighbor commands on R1, the console session on R1 freezes then reports connection lost and all console windows close.

Is there a way to restart Dynamips without losing your topology or configs that are open already?

Monkerz

Nevermind, must have been the image. I set this up with the 3725 image I had and it hasn't crashed.

chmorin

Monkerz wrote: »

Nevermind, must have been the image. I set this up with the 3725 image I had and it hasn't crashed.

I was about to suggest using the 3725. I have had many issues with the 2600 but I have yet to find someone the 3725 craps itself on.