LAN Routing
cancel
Showing results for 
Search instead for 
Did you mean: 

Inter-VLAN Routing

KHarvey
Occasional Visitor

Inter-VLAN Routing

I have read through several forum posts, but I have been unable to resolve my issue.

Currently I have a flat network, and everything is running on VLAN 1. My goal is to build a new network (with new servers) and slowly migrate all of my users over to the new infrastructure. This is my first time setting up routes on an HP switch, although I have done this for many years on Cisco gear.

Here is my switch config:

hostname "SVSCSW02"
module 1 type j9726a
fault-finder broadcast-storm sensitivity high
fault-finder bad-driver sensitivity high
fault-finder bad-transceiver sensitivity high
fault-finder bad-cable sensitivity high
fault-finder too-long-cable sensitivity high
fault-finder over-bandwidth sensitivity high
fault-finder loss-of-link sensitivity high
fault-finder duplex-mismatch-hdx sensitivity high
fault-finder duplex-mismatch-fdx sensitivity high
fault-finder link-flap sensitivity high
telnet-server listen data
web-management listen data
ip ssh listen data
ip routing
snmp-server community "public" unrestricted
snmp-server listen data
snmp-server location "Server Room"
oobm
   disable
   ip address dhcp-bootp
   exit
vlan 1
   name "DEFAULT_VLAN"
   no untagged 13
   untagged 1-12,14-24
   ip address 10.10.4.221 255.255.252.0
   exit
vlan 2
   name "Server"
   untagged 13
   ip address 10.1.2.253 255.255.0.0
   exit
no tftp server
tftp server listen data
no autorun
no dhcp config-file-update
no dhcp image-file-update
no dhcp tr69-acs-url
password manager

Laptop Config:

Connected to Port 13
IP Address: 10.1.2.240/16
Default Gateway: 10.1.2.253

Desktop Config:

Connected to Port 15
IP Address: 10.10.5.159/22
Default Gateway: 10.10.4.221

Here are all of my ping results:

From Laptop (10.1.2.240)

  • 10.1.2.253 Success
  • 10.10.4.221 Success
  • 10.10.5.159 Fail

From Desktop (10.10.5.159)

  • 10.1.2.253 Fail
  • 10.10.4.221 Success
  • 10.1.2.240 Fail

From Switch (10.10.4.221)

  • 10.1.2.253 Success
  • 10.10.5.159 Success
  • 10.1.2.240 Success

From Switch (10.1.2.253)

  • 10.10.4.221 Success
  • 10.10.5.159 Fail
  • 10.1.2.240

It appears that routing isn't working properly for VLAN 1 back to VLAN 2. I fired up Wireshark, and I am able to see ICMP packets coming into 10.10.5.159 from 10.1.2.240

And I am ableto see ICMP packets coming into 10.1.2.240 from 10.10.5.159, and I show that 10.1.2.240 is sending responses back. But when I look at Wireshark on 10.10.5.159 I see some ping responses from 10.1.2.240, but I also see some ICMP Destination unreachable (Network unreachable) errors coming from the switch (10.10.4.221)

Here are the traceroutes from 10.10.5.159

[~]$ traceroute -i enp3s0 10.1.2.253
traceroute to 10.1.2.253 (10.1.2.253), 30 hops max, 60 byte packets
1 * * *
2 10.10.4.221 (10.10.4.221) 3.073 ms 3.082 ms 3.080 ms


[~]$ traceroute -i enp3s0 10.1.2.240
traceroute to 10.1.2.240 (10.1.2.240), 30 hops max, 60 byte packets
1 10.10.4.221 (10.10.4.221) 0.672 ms 0.667 ms 0.665 ms
2 * * *
3 * * *

Here is my route table on the switch:

 

Production1(config)# sh ip route

                                IP Route Entries

  Destination        Gateway         VLAN Type      Sub-Type   Metric     Dist.
  ------------------ --------------- ---- --------- ---------- ---------- -----
  10.1.0.0/16        Server          2    connected            1          0    
  10.10.4.0/22       DEFAULT_VLAN    1    connected            1          0    
  127.0.0.0/8        reject               static               0          0    
  127.0.0.1/32       lo0                  connected            1          0    
 

Any suggestions or help would be greatly appreaciated.

Yes, I do know that I don't have a default route setup on the switch (ip route 0.0.0.0/0 10.10.4.1) for Internet access. I removed it while I am troubleshooting, just in case it was causing problems.