3J, Kelvin, other IP routing gurus[问题]

[胡说之]

Is it possible for network admin to add a dynamic route to routing table? Or dynamic route is ONLY generated by the system?

What kind of route will show up in the routing table when a new route for VRF is created?

 

[March]

俺刚学步，是这样理解的：

dynamic routes都是众routers运行routing protocol，互相交换信息然后算出来的；admin加的应该是static route.

如果admin给某个VRF加了new route, 应该在那个VRF自己的routing table (而不是router system level的)里看到一条static route.

 

[胡说之]

Is it possible to check the code of a route in VRF's routing table?

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route

Thanks.

 

[HKboy]

Here is an example

sh ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR

Gateway of last resort is not set

100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, POS7/0
101.0.0.0/24 is subnetted, 1 subnets
C 101.101.101.0 is directly connected, POS7/3
223.255.254.0/32 is subnetted, 1 subnets
S 223.255.254.254 is directly connected, Ethernet0
21.0.0.0/32 is subnetted, 4 subnets
C 21.21.21.4 is directly connected, Loopback3
C 21.21.21.1 is directly connected, Loopback0
C 21.21.21.3 is directly connected, Loopback2
C 21.21.21.2 is directly connected, Loopback1
20.0.0.0/32 is subnetted, 4 subnets
B 20.20.20.4 [20/0] via 100.100.100.1, 2d22h
B 20.20.20.1 [20/0] via 100.100.100.1, 2d22h
B 20.20.20.2 [20/0] via 100.100.100.1, 2d22h
B 20.20.20.3 [20/0] via 100.100.100.1, 2d22h
5.0.0.0/16 is subnetted, 2 subnets
C 5.19.0.0 is directly connected, Ethernet0
B 5.18.0.0 [20/0] via 110.110.110.2, 01:26:46
22.0.0.0/32 is subnetted, 4 subnets
B 22.22.22.4 [20/0] via 110.110.110.2, 01:26:46
B 22.22.22.2 [20/0] via 110.110.110.2, 01:26:46
B 22.22.22.3 [20/0] via 110.110.110.2, 01:26:46
B 22.22.22.1 [20/0] via 110.110.110.2, 01:26:47
110.0.0.0/24 is subnetted, 1 subnets
C 110.110.110.0 is directly connected, POS3/0
111.0.0.0/24 is subnetted, 1 subnets
C 111.111.111.0 is directly connected, POS3/1

最初由 胡说之 发布
Is it possible to check the code of a route in VRF's routing table?

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route

Thanks.

 

[胡说之]

Thanks HKBoy, when I don't get the right answer, usually it's because I didn't ask the question right.

What is the code for a new added static route in VRF's routing table?

 

[March]

你这个显示的是router level的。你能不能做一个
show ip route vrf xxx？
我手边没有Cisco router, 不能试。但我觉得应该是可以显示code的。

 

[胡说之]

最初由 March 发布
你这个显示的是router level的。你能不能做一个
show ip route vrf xxx？
我手边没有Cisco router, 不能试。但我觉得应该是可以显示code的。

Thanks 3J. 我手边ye没有Cisco router, that's why I ask.

 

[ミ古堡の山竹ペ]

I don't have VPN configured on my testbed but the output will be the same no matter it is per vpn vrf or global vrf.

If the route is a static route, it will be

S 223.255.254.254 is directly connected, Ethernet0

In my example output, since i run BGP on my testbed, they are marked as .

B 20.20.20.4 [20/0] via 100.100.100.1, 2d22h

最初由 March 发布
你这个显示的是router level的。你能不能做一个
show ip route vrf xxx？
我手边没有Cisco router, 不能试。但我觉得应该是可以显示code的。

 

[March]

我同意，对router和VRF的routing table，code都应该是一样的。如果是Cisco就应该是S。这里是另一种router的：

Dest Address Next Hop Type Proto Age Metric Pref
-------------------------------------------------------------------------------
128.251.10.0/24 138.120.199.1 Remote Static 09d20h12m 1 0
138.120.0.0/16 138.120.199.1 Remote Static 09d20h12m 1 0
138.120.199.0/24 management Local Local 09d20h12m 0 0

 

[ミ古堡の山竹ペ]

what router is it???

最初由 March 发布
我同意，对router和VRF的routing table，code都应该是一样的。如果是Cisco就应该是S。这里是另一种router的：

Dest Address Next Hop Type Proto Age Metric Pref
-------------------------------------------------------------------------------
128.251.10.0/24 138.120.199.1 Remote Static 09d20h12m 1 0
138.120.0.0/16 138.120.199.1 Remote Static 09d20h12m 1 0
138.120.199.0/24 management Local Local 09d20h12m 0 0

 

[March]

http://www.alcatel.com/products/productsummary.jhtml?relativePath=/x/opgproduct/a7750sr.jhtml

 

[ミ古堡の山竹ペ]

never heard of it.

Are there anyone using it?

























Just kidding

最初由 March 发布
http://www.alcatel.com/products/productsummary.jhtml?relativePath=/x/opgproduct/a7750sr.jhtml

 

[胡说之]

最初由 March 发布
我同意，对router和VRF的routing table，code都应该是一样的。如果是Cisco就应该是S。这里是另一种router的：

Dest Address Next Hop Type Proto Age Metric Pref
-------------------------------------------------------------------------------
128.251.10.0/24 138.120.199.1 Remote Static 09d20h12m 1 0
138.120.0.0/16 138.120.199.1 Remote Static 09d20h12m 1 0
138.120.199.0/24 management Local Local 09d20h12m 0 0

So...

What's U(per-user static route)/P(periodic downloaded) for?

 

[March]

最初由 ミ古堡の山竹ペ 发布
never heard of it.

Are there anyone using it?

是挺新的，已经有一些客户，但和Cisco和Juniper的市场占有率没法比。

但性能还不错吧？:blowzy:

 

[March]

最初由 胡说之 发布


So...

What's U(per-user static route)/P(periodic downloaded) for?

这个我一点都不懂。:blowzy: