# IS-IS Route Leaking

**URL:** https://forum.networklessons.com/t/is-is-route-leaking/1796
**Category:** Lessons Discussion
**Created:** [June 9, 2017, 9:51am UTC](https://forum.networklessons.com/t/is-is-route-leaking/1796 "2017-06-09T09:51:30Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![ReneMolenaar](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/renemolenaar/32/488_2.png) [@ReneMolenaar](https://forum.networklessons.com/u/ReneMolenaar)
#### Post date: [April 13, 2018, 7:10pm UTC](https://forum.networklessons.com/t/is-is-route-leaking/1796/3 "2018-04-13T19:10:59Z")

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Hi Walid,

That’s a good question. I just booted this topology again and I see a metric of 40 on R2:

```
R2#show ip route isis                         

Gateway of last resort is 192.168.24.4 to network 0.0.0.0

i*L1 0.0.0.0/0 [115/10] via 192.168.24.4, 00:14:23, GigabitEthernet0/2
      8.0.0.0/32 is subnetted, 1 subnets
i ia 8.8.8.8 [115/40] via 192.168.24.4, 00:14:23, GigabitEthernet0/2
i L1 192.168.13.0/24 [115/20] via 192.168.12.1, 00:15:16, GigabitEthernet0/1
i L1 192.168.35.0/24 [115/30] via 192.168.12.1, 00:15:10, GigabitEthernet0/1
i L1 192.168.47.0/24 [115/20] via 192.168.24.4, 00:15:16, GigabitEthernet0/2

```

That’s without wide metrics:

R2:

```
router isis
 net 49.1234.0000.0000.0002.00
 is-type level-1
 log-adjacency-changes

```

R4:

```
router isis
 net 49.1234.0000.0000.0004.00
 log-adjacency-changes
 redistribute isis ip level-2 into level-1 route-map ROUTE_LEAKING

```

What do you see in the database?

```
R2#show isis database level-1 R4.00-00 detail 

IS-IS Level-1 LSP R4.00-00
LSPID LSP Seq Num LSP Checksum LSP Holdtime/Rcvd ATT/P/OL
R4.00-00 0x00000005 0xC9D0 976/1199 1/0/0
  Area Address: 49.1234
  NLPID: 0xCC 
  Hostname: R4
  Metric: 10 IS R4.01
  IP Address: 192.168.47.4
  Metric: 10 IP 192.168.24.0 255.255.255.0
  Metric: 10 IP 192.168.47.0 255.255.255.0
  Metric: 30 IP-Interarea 8.8.8.8 255.255.255.255

```

Rene

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