Load balancing between DHCP Unr and static routes
Created: Sep 29, 2019 11:42:54Latest reply: Sep 29, 2019 12:10:03
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As shown in the following figure, the AR1 has two egresses,
GE0/0/0 is configured with a static IP address and the corresponding default route, and GE0/0/1 enabled with DHCP to automatically obtain an IP address.
There are two default routes in the routing table. Although both the priorities of the two routes are 60, the Unr route automatically generated by the DHCP does not take effect. Why? How to implement load balancing between the two routes?
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Hi Spout,
The preferences in the routing table are only external preferences, but routing protocols have internal preferences. When the external preferences of the two routes are the same, the internal preferences of the two routes are compared. The internal preference of the static route is 60, and the internal preference of the Unr is 65. Therefore, the router prefers static routes. For details about priorities, see https://forum.huawei.com/enterprise/en/route-preference/thread/533159-863 To implement load balancing, you need to add a default static route and associate it with DHCP. ip route-static 0.0.0.0 0GigabitEthernet 0/0/1 dhcp  https://support.huawei.com/hedex/hdx.do?docid=EDOC1100007335&id=ip_route-static&text=ip%20route-static&lang=en
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All Answers
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Hi Spout,
The preferences in the routing table are only external preferences, but routing protocols have internal preferences. When the external preferences of the two routes are the same, the internal preferences of the two routes are compared. The internal preference of the static route is 60, and the internal preference of the Unr is 65. Therefore, the router prefers static routes. For details about priorities, see https://forum.huawei.com/enterprise/en/route-preference/thread/533159-863 To implement load balancing, you need to add a default static route and associate it with DHCP. ip route-static 0.0.0.0 0GigabitEthernet 0/0/1 dhcp https://support.huawei.com/hedex/hdx.do?docid=EDOC1100007335&id=ip_route-static&text=ip%20route-static&lang=en
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