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New Member

3850 inter-vlan routing

I have a stack of 3 3850's and am trying to route between Vlan 100 and 200. Both VLANs have an IP address configured, IP routing is on.

From VLAN 200 GI1/0/11 (PC ip address 192.168.200.10/24 GW 192.168.200.1) I can ping 192.168.200.1 and 192.168.100.250 (VLAN 200 and 100 IP addresses).

From VLAN 100 GI2/0/5 (PC IP address 192.168.100.154/24 GW 192.168.100.1) I can ping 192.168.100.1 and 100.250, but not 192.168.200.1. here is the "sho IP route"

Production-Stack#sh ip rout
Codes: L - local, C - connected, S - static, 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
       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, P - periodic downloaded static route, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is 192.168.100.1 to network 0.0.0.0

S*    0.0.0.0/0 [1/0] via 192.168.100.1
      192.168.100.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.100.0/24 is directly connected, Vlan100
L        192.168.100.250/32 is directly connected, Vlan100
      192.168.200.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.200.0/24 is directly connected, Vlan200
L        192.168.200.1/32 is directly connected, Vlan200
Production-Stack#

Production-Stack#sho vlan br

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi1/0/1
30   VLAN0030                         active
40   VLAN0040                         active
50   VLAN0050                         active
60   VLAN0060                         active    Gi1/0/39, Gi1/0/40
100  Production                       active    Gi1/0/2, Gi1/0/3, Gi1/0/4
                                                Gi1/0/5, Gi1/0/6, Gi1/0/7
                                                Gi1/0/8, Gi1/0/9, Gi1/0/10
                                                Gi1/0/14, Gi1/0/15, Gi1/0/16
                                                Gi1/0/17, Gi1/0/18, Gi1/0/19
                                                Gi1/0/20, Gi1/0/21, Gi1/0/22
                                                Gi1/0/23, Gi1/0/24, Gi1/0/25
                                                Gi1/0/26, Gi1/0/27, Gi1/0/28
                                                Gi1/0/29, Gi1/0/30, Gi1/0/31
                                                Gi1/0/32, Gi1/0/33, Gi1/0/34
                                                Gi1/0/35, Gi1/0/36, Gi1/0/37
                                                Gi1/0/38, Gi2/0/1, Gi2/0/2
                                                Gi2/0/3, Gi2/0/4, Gi2/0/5
                                                Gi2/0/6, Gi2/0/7, Gi2/0/8
                                                Gi2/0/9, Gi2/0/10, Gi2/0/11

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
                                                Gi2/0/12, Gi2/0/13, Gi2/0/14
                                                Gi2/0/15, Gi2/0/16, Gi2/0/17
                                                Gi2/0/18, Gi2/0/19, Gi2/0/20
                                                Gi2/0/21, Gi2/0/22, Gi2/0/23
                                                Gi2/0/24, Gi2/0/25, Gi2/0/26
                                                Gi2/0/27, Gi2/0/28, Gi2/0/29
                                                Gi2/0/30, Gi2/0/31, Gi2/0/32
                                                Gi2/0/33, Gi2/0/34, Gi2/0/35
                                                Gi2/0/36, Gi2/0/37, Gi2/0/38
                                                Gi2/0/39, Gi2/0/40, Gi2/0/41
                                                Gi2/0/42, Gi2/0/43, Gi2/0/44
                                                Gi2/0/45, Gi2/0/46, Gi2/0/47
                                                Gi2/0/48, Gi3/0/1, Gi3/0/2
                                                Gi3/0/3, Gi3/0/4, Gi3/0/5
                                                Gi3/0/6, Gi3/0/7, Gi3/0/8
                                                Gi3/0/9, Gi3/0/10, Gi3/0/11
                                                Gi3/0/12, Gi3/0/13, Gi3/0/14
                                                Gi3/0/15, Gi3/0/16, Gi3/0/17
                                                Gi3/0/18, Gi3/0/19, Gi3/0/20
                                                Gi3/0/21, Gi3/0/22, Gi3/0/23
                                                Gi3/0/24, Gi3/0/25, Gi3/0/26
                                                Gi3/0/27, Gi3/0/28, Gi3/0/29
                                                Gi3/0/30, Gi3/0/31, Gi3/0/32

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
                                                Gi3/0/33, Gi3/0/34, Gi3/0/35
                                                Gi3/0/36, Gi3/0/37, Gi3/0/38
                                                Gi3/0/39, Gi3/0/40, Gi3/0/41
                                                Gi3/0/42, Gi3/0/43, Gi3/0/44
                                                Gi3/0/45, Gi3/0/46, Gi3/0/47
                                                Gi3/0/48
101  VLAN0101                         active
200  Management                       active    Gi1/0/11, Gi1/0/12, Gi1/0/13
250  VLAN0250                         active    Gi1/0/41, Gi1/0/42
251  VLAN0251                         active    Gi1/0/43, Gi1/0/44, Gi1/0/45
                                                Gi1/0/46, Gi1/0/47, Gi1/0/48

What did I miss?

  • LAN Switching and Routing
5 REPLIES
New Member

Production-Stack#sho verCisco

Production-Stack#sho ver
Cisco IOS Software, IOS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 03.03.01SE RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Thu 05-Dec-13 10:15 by prod_rel_team

 

Cisco IOS-XE software, Copyright (c) 2005-2013 by cisco Systems, Inc.
All rights reserved.  Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0.  The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY.  You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0.
(http://www.gnu.org/licenses/gpl-2.0.html) For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.

 

ROM: IOS-XE ROMMON
BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 1.2, RELEASE SOFTWARE (P)
 --More--         
Production-Stack uptime is 4 weeks, 5 days, 18 hours, 33 minutes
Uptime for this control processor is 4 weeks, 5 days, 18 hours, 38 minutes
System returned to ROM by reload
System image file is "flash:packages.conf"
Last reload reason: reload

 

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 --More--         
License Level: Ipbase
License Type: Permanent
Next reload license Level: Ipbase

cisco WS-C3850-48T (MIPS) processor with 4194304K bytes of physical memory.

New Member

I am also facing the same

I am also facing the same issue. My switches are also in stack. Intervaln routing is not happening.

Please find the show tech attached.

Hall of Fame Super Blue

So vlan 100 has an SVI with

So vlan 100 has an SVI with an IP of 192.168.100.250 ?

But the default gateway for the vlan 100 client is 192.168.100.1 ie. a different device.

So either -

1) change the default gateway for the vlan 100 client to be 192.168.100.250

or

2) add a route on the other device ie. -

ip route 192.168.200.0 255.255.255.0 192.168.100.250

Jon

New Member

Thanks Jon, I'll give that a

Thanks Jon, I'll give that a try.

New Member

I made the default gw on my

I made the default gw on my pc .250. all is good. thanks

 

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