host route در Ip/v4 به معنی روت برای آدرس 32/Mask است ؛
و در Ip/v6 روت برای آدرس 128/ Mask می باشد .
If an IPv4 address is configured with a mask of /32 on an interface of the router (typical for loopback interfaces), then the host route will appear in the routing table only as connected (it has the C flag).
R1#show ip route | include 10.100.1.1
C 10.100.1.1/32 is directly connected, Loopback0
R1#show ip route 10.100.1.1
Routing entry for 10.100.1.1/32
Known via "connected", distance 0, metric 0 (connected, via interface)
Routing Descriptor Blocks:
* directly connected, via Loopback0
Route metric is 0, traffic share count is 1
If an IPv6 address is configured with a mask of /128 on an interface of the router (typical for loopback interfaces), then the host route will appear with both the L and C flag.
R1#show ipv6 route
IPv6 Routing Table - default - 4 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
D - EIGRP, EX - EIGRP external, NM - NEMO, ND - Neighbor Discovery
LC 2001:1111::1/128 [0/0]
via Loopback0, receive