From: Victor Cappuccio (vcappuccio@desca.com)
Date: Sat Dec 30 2006 - 23:53:08 ART
If I may add
SW1#show ip ospf database external 2.2.2.0
OSPF Router with ID (9.9.9.9) (Process ID 1)
Type-5 AS External Link States
Routing Bit Set on this LSA
LS age: 58
Options: (No TOS-capability, DC)
LS Type: AS External Link
Link State ID: 2.2.2.0 (External Network Number )
Advertising Router: 4.4.4.4
LS Seq Number: 80000001
Checksum: 0xAC5A
Length: 36
Network Mask: /24
Metric Type: 2 (Larger than any link state path)
TOS: 0
Metric: 20
Forward Address: 192.168.24.2
External Route Tag: 0
Now If you do not know about 192.168.24.2
SW1#show ip route 192.168.24.2
% Network not in table
SW1#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address
Interface
4.4.4.4 1 FULL/BDR 00:00:32 192.168.14.4 Vlan14
1.1.1.1 255 FULL/DR 00:00:37 192.168.100.1
Vlan100
10.10.10.10 1 FULL/BDR 00:00:36 192.168.100.10
Vlan100
SW1#show ip ospf database
OSPF Router with ID (150.150.0.1) (Process ID 100)
OSPF Router with ID (9.9.9.9) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link
count
1.1.1.1 1.1.1.1 86 0x80000142 0x00BB4E 4
4.4.4.4 4.4.4.4 20 0x80000005 0x00EA1B 1
6.6.6.6 6.6.6.6 897 0x8000012B 0x005A47 3
9.9.9.9 9.9.9.9 25 0x80000143 0x006822 4
10.10.10.10 10.10.10.10 87 0x8000002B 0x00766C 2
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.14.10 9.9.9.9 26 0x80000001 0x00DB84
192.168.100.1 1.1.1.1 70 0x80000002 0x00F71A
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
2.2.2.0 4.4.4.4 16 0x80000001 0x00AC5A 0
Looking at the OSPF External database
SW1#show ip ospf database external 2.2.2.0
OSPF Router with ID (150.150.0.1) (Process ID 100)
OSPF Router with ID (9.9.9.9) (Process ID 1)
Type-5 AS External Link States
LS age: 23
Options: (No TOS-capability, DC)
LS Type: AS External Link
Link State ID: 2.2.2.0 (External Network Number )
Advertising Router: 4.4.4.4
LS Seq Number: 80000001
Checksum: 0xAC5A
Length: 36
Network Mask: /24
Metric Type: 2 (Larger than any link state path)
TOS: 0
Metric: 20
Forward Address: 192.168.24.2
External Route Tag: 0
SW1#show ip route 192.168.24.0
% Network not in table
SW1#ping 2.2.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
SW1#
RTR-TS1#4
[Resuming connection 4 to R4 ... ]
*Mar 2 01:09:09.225: %OSPF-5-ADJCHG: Process 100, Nbr 2.2.2.2 on
Serial0.42 from LOADING to FULL, Lo
R4(config-router)#router ospf 100
R4(config-router)#
R4(config-router)#area 42 nssa translate type7 suppress-fa
R4(config-router)#
RTR-TS1#2
[Resuming connection 2 to sw1 ... ]
SW1#show ip ospf database external 2.2.2.0
OSPF Router with ID (150.150.0.1) (Process ID 100)
OSPF Router with ID (9.9.9.9) (Process ID 1)
Type-5 AS External Link States
Routing Bit Set on this LSA
LS age: 8
Options: (No TOS-capability, DC)
LS Type: AS External Link
Link State ID: 2.2.2.0 (External Network Number )
Advertising Router: 4.4.4.4
LS Seq Number: 80000002
Checksum: 0x2564
Length: 36
Network Mask: /24
Metric Type: 2 (Larger than any link state path)
TOS: 0
Metric: 20
Forward Address: 0.0.0.0 ---------- Forwarding address modified
External Route Tag: 0
SW1#ping 2.2.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 59/62/67 ms
SW1#
SW1#show ip route 2.2.2.2
Routing entry for 2.2.2.0/24
Known via "ospf 1", distance 110, metric 20, type extern 2, forward
metric 1
Last update from 192.168.14.4 on Vlan14, 00:02:09 ago
Routing Descriptor Blocks:
* 192.168.14.4, from 4.4.4.4, 00:02:09 ago, via Vlan14
Route metric is 20, traffic share count is 1
SW1#show ip route 0.0.0.0
% Network not in table
SW1#
Thanks
Victor.-
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Nick Griffin
Sent: Saturday, December 30, 2006 10:20 PM
To: Thiago Vazquez
Cc: ccie anees; ccielab@groupstudy.com
Subject: Re: OSPF NSSA forwarding address suppression
This may help:
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009
405a.shtml
On 12/30/06, Thiago Vazquez <thiago.vazquez@uk.easynet.net> wrote:
>
> Mate,
>
> If you got Doyle's book (vol 1), take a look on Case Study: Address
> Summarization - pag 435. It will give u great details about it.
>
> Cheers, Thiago
>
> ----------------------------------------------------------------------
> Network Operations Center
> Easynet
> email: thiago.vazquez@uk.easynet.net
> team email: networks.support@uk.easynet.net
> tel.: +44 (0) 207 032 8006
> ----------------------------------------------------------------------
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> ccie anees
> Sent: 31 December 2006 01:12
> To: ccielab@groupstudy.com
> Subject: OSPF NSSA forwarding address suppression
>
>
> Hi,
>
> how this command works?
>
> area 2 nssa translate type7 suppress-fa
>
> Thanks,
>
> Anees.
>
> __________________________________________________
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> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
>
This archive was generated by hypermail 2.1.4 : Tue Jan 02 2007 - 07:50:40 ART