Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

5406 vlan routing issue

Status
Not open for further replies.

Fezbro

Technical User
Jul 9, 2002
17
AU
We have a 5406 switch with 3 vlans. Vlan 1 with gateway 194.1.1.133 (255.255.255.0), vlan 2 with 172.18.0.1(255.255.252.0) and vlan 9 with 172.18.9.1 (255.255.255.0). Ip routing is enabled, and there are no access lists.

Vlans 1 and 2 can ping anything. Vlan 9 however can ONLY ping vlan 2. There are no acls set. Anyone have any clues as to what I can check next?

Thanks
 
can you post your config??

I hate all Uppercase... I don't want my groups to seem angry at me all the time! =)
- ColdFlame (vbscript forum)
 
If VLANs 1 & 2 can ping anything, does that mean devices on VLANs 1 & 2 can ping devices on VLAN 9?
 
Hi

Yes VLANs 1 & 2 can both ping VLAN 9, VLAN 9 can ping VLAN 2, but not VLAN 1.

Config is:


module 1 type J8707A
module 2 type J8702A
module 3 type J8702A
module 5 type J8702A
module 6 type J8702A
module 9 type J8702A
module 10 type J8702A
interface E12
speed-duplex 100-full
exit
interface J8
speed-duplex auto-10-100
exit
ip routing
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged A3-A4,B1-B3,B5-B7,B9,B12,B14,B16,B18,B21,B23-B24,C1-C1,C5,C9-C10,E1-
E3,I1,I4-I6,J13-J14
ip address 194.1.1.133 255.255.255.0
tagged A1-A2,B4,C7,C13-C14,I2,J1,J7,J12
no untagged B8,B10-B11,B13,B15,B17,B19-B20,B22,C2-C4,C6,C8,C11-C12,C15-C24,E4
-E24,F1-F24,I3,I7-I24,J2-J6,J8-J11,J15-J24
exit
vlan 2
name "New subnet"
untagged B8,B10-B11,B13,B15,B17,B19-B20,B22,C4,C6,C8,C12,C15-C24,E4-E24,F1-F3
,F5,F7-F24,I3,I7-I16,I18-I24,J2-J6,J8-J11,J15-J20,J22-J24
ip address 172.20.0.1 255.255.0.0
ip address 172.18.0.1 255.255.252.0
tagged A1-A2,B1,B4,C1,C7,I2,J7,J14
exit
vlan 3
name "DMZ"
untagged C2-C3,C11,F4,F6,I17,J21
tagged A1-A2,B1,B4,C1,I2,J7,J14
no ip address
exit
vlan 4
name "vMotion"
tagged B1,C13-C14,J1,J12
no ip address
exit
vlan 9
name "VOIP"
untagged C7
qos priority 7
ip helper-address 172.18.0.21
ip address 172.18.9.1 255.255.255.0
tagged A1-A2,B1,B4,C5,E18,F17,I2
exit
ip route 0.0.0.0 0.0.0.0 194.1.1.254

I can ping the inside of our firewall, which is in the VLAN 1 range, but any other server fails. I did note however that when I try to ping, our firewall creates an outbound connection?
 
Hi

That is a legacy entry. The old network guy was planning to migrate us away from our 194 range, but we then got pushed into the 172.18 range by our parent company.
 

The successful ping VLAN1-->VLAN9 proves that ICMP reply packets are successfully travelling VLAN9-->VLAN1

That would indicate your device on VLAN1 has Windows firewall blocking ICMP.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top