got some configurations after changing the con-reg to 0x1

Dowima

hi all,
I'm using a 2507 router. When i change the config-register to 0x1, it I should get no at least no interface in up status. A strange this is that the int e0 has an ip address 192.168.1.3.
Note: my router is now connected to a 3com wireless router thru int e0. I have config this ip before on my router to talk to the 3com router. But after change the config-reg to 0x1 and reload. I should no longer got this ? correct

Router(boot)#sh running-config 
Building configuration...

Current configuration:
!
version 11.0
service udp-small-servers
service tcp-small-servers
!
hostname Router
!
!
!
hub ether 0 1
 link-test
 auto-polarity
!
hub ether 0 2
 link-test
 auto-polarity
!
hub ether 0 3
 link-test
 auto-polarity
!
hub ether 0 4
 link-test
 auto-polarity
!
hub ether 0 5
 link-test
 auto-polarity
!
hub ether 0 6
 link-test
 auto-polarity
!
hub ether 0 7
 link-test
 auto-polarity
!
hub ether 0 8
 link-test
 auto-polarity
!
hub ether 0 9
 link-test
 auto-polarity
!         
hub ether 0 10
 link-test
 auto-polarity
!
hub ether 0 11
 link-test
 auto-polarity
!
hub ether 0 12
 link-test
 auto-polarity
!
hub ether 0 13
 link-test
 auto-polarity
!
hub ether 0 14
 link-test
 auto-polarity
!
hub ether 0 15
 link-test
 auto-polarity
!
hub ether 0 16
 link-test
 auto-polarity
!
interface Ethernet0
 ip address 192.168.1.3 255.255.255.0
 no ip route-cache
!
interface Serial0
 no ip address
 no ip route-cache
 shutdown
!
interface Serial1
 no ip address
 no ip route-cache
 shutdown
!
!
line con 0
line aux 0
 transport input all
line vty 0 4
 login

also when i want to delete flash i got this :

Router#erase flash: 
Erasing the flash filesystem will remove all files! Continue? [confirm]
%dev_open: System flash not writable
%Error erasing flash: (Device is read-only)

dtlokee

You may want to reveiw your configuration register setings, 0x1 will tell the router to boot into the embedded IOS (which it did based on the "router(boot)#" prompt)

If you're trying to bypass the config you need a config register of 0x2142, or any combination which turns on the 7th bit from the right (LSB)

As far as the "erase flash" command, the 2500 supports a class C filesystem and it runs from flash, once the router is booted it is locked and cannot be erased. To do this you need to boot into the helper IOS (using 0x2101) and erase it from there.