> Source: [sk115333](https://support.checkpoint.com/results/sk/sk115333)

# sk115333 - Traffic outage might occur on VSX Gateway with configured OSPF when adding a new Virtual System

| Property | Value |
|----------|-------|
| Solution ID | sk115333 |
| Date Created | 2017-01-03 |
| Last Modified | 2017-05-17 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * Traffic outage might occur on VSX Gateway / VSX Cluster Member with configured OSPF when adding a new Virtual System.

* After enabling generation of core dump files per [sk92764](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92764) on VSX Gateway / VSX Cluster Members, core dump files for '*RouteD* ' process were generated in the */var/log/dump/usermode/* directory.

* */var/log/routed.log* file shows that adding a new Virtual System triggers deletion of the IP address from an external interface, on which OSPF is configured.

  *Example* : `routed_1.log-Dec 5 00:30:31.131457 ifa_unnumbered: addresses for interface:int address: 127.0.0.1`  
  `
  routed_1.log-Dec 5 00:30:31.131457`  
  `
  routed_1.log:Dec 5 00:30:31.131457 EVENT bond1.10 x.x.x.x/30 -> x.x.x.x <>`  
  `
  routed_1.log-Dec 5 00:30:31.131457 EVENT x.x.x.x`  
  `
  routed_1.log-Dec 5 00:30:31.131457 EVENT index: 189 name: bond1.10 state: <>`  
  `
  routed_1.log-Dec 5 00:30:31.131457 EVENT change: <> route: not installed`  
  `
  routed_1.log-Dec 5 00:30:31.131457 EVENT refcount: 5 mtu: 1500`  
  `
  routed_1.log-Dec 5 00:30:31.131457 EVENT network addr: x.x.x.x/30`  
  `
  routed_1.log-Dec 5 00:30:31.131457 `  
  `
  routed_1.log-Dec 5 00:30:31.131457 task_ifaddr_change(431): Set the cluster flag for x.x.x.x(bond1.10) if clustered`  
  `
  routed_1.log-Dec 5 00:30:31.131457 `  
  `
  routed_1.log-Dec 5 00:30:31.131457 task_ifaddr_change: Starting ifaddr_change of x.x.x.x(bond1.10) for task IF for instance default`  
  `
  routed_1.log-Dec 5 00:30:31.131457 if_rtdelete: DELETE route for interface bond1.10 x.x.x.x/30`  
  `
  routed_1.log-CHANGE x.x.x.x /30 gw 0.0.0.0 Static pref 60/- no metric bond1.10 `  
  `
  routed_1.log-CHANGE x.x.x.x /30 gw (null) Direct pref 0/- no metric bond1.10`  
  ` 
  routed_1.log-Dec 5 00:30:31.131457 rt_close: 1 route proto IF`

## Solution

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