LAN Network issue " dispose ip.notgateway"

[bensonlei]

Hi, Guys,

Strange network issue :

Network infrastructure as below"

1. Router is configured as L3 device for VLANs gateway and inter-VLAN routing

2. Juniper EX4200 ( as L2/L3 configuration) is trunked to the Router, and also is trunked to server switches ( i.e, EX4200 is in between the Router and Server switches).

Problem is found some packet loss (for VLAN1 only, and other VLANs have no such problem) for sever ping as attched; and after the debug checking, the initial finding "dispose ip.notgateway in VLAN1" is attached.

Any hint to find out the root cause, or the OSPF configuration issue ( lacking of the root area )?

Many thanks in advance.

[Georg Pauwen]

Hello,

area 0 is just required if you have multiple areas. If you just have area 6, that is not a problem. That said, it looks like you are experiencing intermittent PING loss. How is the EX configured, especially the trunk interfaces ?

[bensonlei]

Hi, Pauwen,

The configuration in Juniper EX4200 is simple as the attached, any hint for this problem troubleshooting ?

[Georg Pauwen]

Hello,

from where (which IP address) are you pinging ? I don't think the intermittent PING losses are caused by a major misconfiguration, unless of course you are experiencing other networking issues as well. Do you have OSPF configured on the Juniper as well ? Post the full configuration of the EX.

Also, which switch is the root for your Vlans ?

[bensonlei]

The IP address I was pinging is on VLAN1 in the sub-interface fa0/0.1 of the router (VLAN1 is defined the native vlan ).

All main routing configuration in EX4200 :

set routing-options static route 192.168.1.0/24 next-hop 192.168.200.5
set routing-options static route 0.0.0.0/0 discard
set routing-options static route 0.0.0.0/0 preference 200
set routing-options static route 192.168.0.0/16 discard
set protocols ospf traceoptions file ospf.txt
set protocols ospf traceoptions flag state
set protocols ospf traceoptions flag route
set protocols ospf traceoptions flag general
set protocols ospf export ospf-redistributes
set protocols ospf export default-route
set protocols ospf area 0.0.0.6 interface lo0.0
set protocols ospf area 0.0.0.6 interface vlan.2
set protocols ospf area 0.0.0.6 interface vlan.3
set protocols ospf area 0.0.0.6 interface vlan.4
set protocols ospf area 0.0.0.6 interface vlan.6
set protocols ospf area 0.0.0.6 interface vlan.13
set protocols ospf area 0.0.0.6 interface vlan.14
set protocols ospf area 0.0.0.6 interface vlan.16
set protocols ospf area 0.0.0.6 interface vlan.17
set protocols ospf area 0.0.0.6 interface vlan.192
set protocols ospf area 0.0.0.6 interface vlan.200
set protocols mstp enable
set protocols mstp configuration-name Test
set protocols mstp revision-level 1
set protocols mstp bridge-priority 28k
set protocols mstp msti 1 bridge-priority 28k
set protocols mstp msti 1 vlan 1-303
set policy-options policy-statement default-route term 1 from protocol static
set policy-options policy-statement default-route term 1 from route-filter 0.0.0.0/0 exact
set policy-options policy-statement default-route term 1 then accept
set policy-options policy-statement ospf-redistributes term static from protocol static
set policy-options policy-statement ospf-redistributes term static then metric 1000
set policy-options policy-statement ospf-redistributes term static then external type 1
set policy-options policy-statement ospf-redistributes term static then accept
set policy-options policy-statement ospf-redistributes term from-ospf from protocol ospf
set policy-options policy-statement ospf-redistributes term from-ospf then next policy
set policy-options policy-statement ospf-redistributes term ios-implicit-deny then reject

Any issue for the routing configuration in Juniper switch ?

[euzinho789]

My problem about formatting flash is with deleting the image report for the transfer for hosting website of disposeitwell. The unique put up speaks of "disposing" the switch however I am no longer sure what that without a doubt method.