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Fix error reported due to re-add ipv6 address

This commit fixes devstack fails when re-stack due to re-add ipv6
address.

Change-Id: I9ff62023dbc29a88aec3c48af331c0a49a1270bb
Closes-Bug: #1579985

Yi Zhao authored on 2016/05/12 11:32:58
Showing 1 changed files
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@@ -358,7 +358,7 @@ function _neutron_configure_router_v6 {
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             local ipv6_cidr_len=${IPV6_PUBLIC_RANGE#*/}
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             # Configure interface for public bridge
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-            sudo ip -6 addr add $ipv6_ext_gw_ip/$ipv6_cidr_len dev $ext_gw_interface
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+            sudo ip -6 addr replace $ipv6_ext_gw_ip/$ipv6_cidr_len dev $ext_gw_interface
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             sudo ip -6 route replace $FIXED_RANGE_V6 via $IPV6_ROUTER_GW_IP dev $ext_gw_interface
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         fi
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         _neutron_set_router_id