[c-nsp] Issues created by "ip address dhcp"
Tuc at T-B-O-H.NET
ml at t-b-o-h.net
Fri Jul 13 14:15:29 EDT 2007
Hi,
BTW: Thanks to everyone helping with my questions... I know I'm
going to get burnt bad since I'm doing a few weird things, as well as :
1) Doing it on Friday the 13th.. I usually don't do anything on it.
2) Its a Friday, and I usually NEVER do any network stuff on a Friday.
3) I'm doing network changes at a remote site that if it goes down
I have to RENT a jeep to get to it after a 9 hour drive
SO.....
I'm actually trying to implement :
http://www.nil.si/ipcorner/SmallSiteMultiHoming/
I have 1 connection to a local Wireless ISP on E0/0 . I have 1
connection to a satellite ISP on E1/0. I have E0/1 and E1/1 in a bridge
group with a 2924 hanging off each. SO, I did :
bridge irb
interface Ethernet0/0
description SEABREEZE CONNECTIONS WIRELESS T-1
ip address 192.168.75.49 255.255.255.0
ip nat outside
ip virtual-reassembly
half-duplex
!
interface Ethernet0/1
description BRIDGE FOR 2924-1
no ip address
half-duplex
bridge-group 1
!
interface Ethernet1/0
description HUGHES SATELLITE
ip address dhcp
ip nat outside
ip virtual-reassembly
shutdown
half-duplex
!
interface Ethernet1/1
description BRIDGE FOR 2924-2
no ip address
half-duplex
bridge-group 1
!
interface BVI1
ip address 192.168.3.254 255.255.255.0
ip nat inside
ip virtual-reassembly
ip route 0.0.0.0 0.0.0.0 192.168.75.1 10 name SEABREEZE
ip route 0.0.0.0 0.0.0.0 192.168.0.1 251 name HUGHES
!
ip nat inside source route-map HUGHES interface Ethernet1/0 overload
ip nat inside source route-map SEABREEZE interface Ethernet0/0 overload
!
logging 192.168.3.150
snmp-server community hackme RO
!
route-map HUGHES permit 10
match interface Ethernet1/0
!
route-map SEABREEZE permit 10
match interface Ethernet0/0
!
bridge 1 protocol ieee
bridge 1 route ip
I've run into 2 problems/issues (Hence why E1/0 is shutdown).
1) When I DHCP on E1/0, it doesn't care about my "ip route 0.0.0.0" statements,
it ends up with a static route out to E1/0. I couldn't find a "ip address
dhcp ignore-default-route" type command. Is there one? Or do I need to
do some sort of a route-map filter for default route? Can I do that with
dhcp?
2) How do I properly code the "ip route 0.0.0.0" for the HUGHES connection.
I had to hardcode the next hop for the SEABREEZE since its not a point to
point connection. I need/want to do the same with the HUGHES, and I pretty
much KNOW the IP *SHOULD* be the 192.168.0.1 IP, but knowing my luck it
may/will change. I tried "ip route 0.0.0.0 0.0.0.0 e1/0 dhcp 251" but then it
won't let me name the route (And I'm not sure if I ever end up DHCPing on
the SEABREEZE if it'll pick up the right one too).
Thanks! Tuc
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