|
|
[root@ocp-k8s-test2 ~]# route -n& g* f/ v% b) x) c
Kernel IP routing table! i; w6 G2 F% m) y# k
Destination Gateway Genmask Flags Metric Ref Use Iface
9 | l. k, s. p2 \169.254.169.254 192.168.101.65 255.255.255.255 UGH 0 0 0 eth0
2 t3 x+ G3 j6 ?# u& a192.168.100.0 0.0.0.0 255.255.255.224 U 0 0 0 eth0
1 d& d% M' N9 [9 B192.168.100.32 0.0.0.0 255.255.255.224 U 0 0 0 eth0/ Y8 X5 {5 [+ S" @ g6 H2 U
192.168.100.64 0.0.0.0 255.255.255.224 U 0 0 0 eth08 m) W$ |& G' l C& | l e8 i, T
192.168.100.96 0.0.0.0 255.255.255.224 U 0 0 0 eth0
! q" @0 E8 u+ `192.168.100.128 0.0.0.0 255.255.255.224 U 0 0 0 eth00 G. `) g1 P7 W9 l+ p1 S
192.168.100.160 0.0.0.0 255.255.255.224 U 0 0 0 eth0
4 i( I+ E f! x: m: n! ?192.168.100.192 0.0.0.0 255.255.255.224 U 0 0 0 eth0
- z: w' q: C$ j6 |- ?, E192.168.100.224 0.0.0.0 255.255.255.224 U 0 0 0 eth0
, d- ?! ]9 a& t" [* o: V192.168.101.0 0.0.0.0 255.255.255.224 U 0 0 0 eth0
. |9 {5 W# C& n$ x192.168.101.64 0.0.0.0 255.255.255.224 U 0 0 0 eth0
- \' c0 M) A+ t! m M8 H[root@ocp-k8s-test2 ~]# ping www.baidu.com( l- y3 S7 n L- }* d6 u
ping: www.baidu.com: Name or service not known
! z0 {6 q1 ^) Q# ^( z& P[root@ocp-k8s-test2 ~]# ping 192.168.0.17 N4 l9 i0 K& t4 c2 a. ]
connect: Network is unreachable9 h( S! l0 F, z7 ]: o4 j
[root@ocp-k8s-test2 ~]# ip addr
4 M1 g' I* d% L) q% T1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000$ K" D7 P- n9 I
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
" g# V( V8 ^2 T. d' o4 d+ k inet 127.0.0.1/8 scope host lo3 [1 h' e1 u" @
valid_lft forever preferred_lft forever7 Z2 _2 |) k9 I3 J
inet6 ::1/128 scope host 8 H% `/ ^7 t* [! g
valid_lft forever preferred_lft forever
# k4 S5 {- F) Z2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000. K# n1 a. k) ]1 F0 I2 j
link/ether fa:16:3e:50:eb:dc brd ff:ff:ff:ff:ff:ff
* `* f Q7 n0 e! b8 N% }3 V4 p5 P inet 192.168.101.67/27 brd 192.168.101.95 scope global eth0
1 I7 q" c7 W5 N6 u valid_lft forever preferred_lft forever
) H f9 Q5 s1 K7 R. w% ~8 E. ` inet6 fe80::f816:3eff:fe50:ebdc/64 scope link
& t' D0 E0 z" w) E6 n! `2 s. } valid_lft forever preferred_lft forever
( l' J# q) M" ]7 E6 O% G4 V X9 }1 R+ v" W0 i; s( l6 n/ ^
如果我们重启网络服务:9 ]+ l$ f" P2 e) \' P
systemctl restart network.service
7 j4 i8 j- b2 b! }9 d1 P之后
' G. \% L6 [! a. k" |- m5 J6 N/ `5 t" P& g. i W! W" [0 D. }9 s$ n0 y3 T
[root@ocp-k8s-test2 ~]# systemctl restart network.service # q; M- R$ v' l( w9 V5 b# B
[root@ocp-k8s-test2 ~]#
* t8 @. X) }' [+ {3 k, e3 y
$ D' T* _. i) q1 B5 I路由发生变化:4 p4 r0 V5 \3 G) L9 g! |
[root@ocp-k8s-test2 ~]# route -n
) c: V9 I& O4 `) zKernel IP routing table
" l: ^/ R8 w& T' ]% D: M" s2 q' KDestination Gateway Genmask Flags Metric Ref Use Iface
/ }' a, C& F+ }3 l0.0.0.0 192.168.100.1 0.0.0.0 UG 100 0 0 eth00 d9 W% v( {4 x0 v/ k
169.254.169.254 192.168.101.65 255.255.255.255 UGH 100 0 0 eth05 [3 Q/ `. _( S
192.168.100.0 0.0.0.0 255.255.255.224 U 100 0 0 eth0
" V1 N5 h$ Z6 P" ~ K# f( V4 z192.168.100.32 0.0.0.0 255.255.255.224 U 100 0 0 eth0
* u. _9 n: {+ l8 Q& U; C) w192.168.100.64 0.0.0.0 255.255.255.224 U 100 0 0 eth0' s( b1 }! T, T0 b8 o) r
192.168.100.96 0.0.0.0 255.255.255.224 U 100 0 0 eth0
4 O6 Y R7 b7 @- i. q- z7 p4 V192.168.100.128 0.0.0.0 255.255.255.224 U 100 0 0 eth0
3 T0 m* G* X3 [192.168.100.160 0.0.0.0 255.255.255.224 U 100 0 0 eth0
: X) D! ]' s: [192.168.100.192 0.0.0.0 255.255.255.224 U 100 0 0 eth01 W4 m) N. f5 v9 k$ A7 N' u
192.168.100.224 0.0.0.0 255.255.255.224 U 100 0 0 eth0
/ \ u' T: n# Q7 Q9 d' q( M192.168.101.0 0.0.0.0 255.255.255.224 U 100 0 0 eth0
# T* n8 N! d, |9 q8 q' w2 k& ^8 Q192.168.101.64 0.0.0.0 255.255.255.224 U 100 0 0 eth0! F9 S- J6 x M4 b
此时增加了,192.168.100.1的路由网络。2 s7 k0 {# i' q
& [8 D6 c8 I5 F7 D' i9 s
ping 外网可以通了,6 `! C3 V5 @. P" U+ }
[root@ocp-k8s-test2 ~]# ping www.baidu.com
( }) l4 h2 h0 ]3 QPING www.a.shifen.com (220.181.38.150) 56(84) bytes of data.2 T, O; r7 x, n3 o2 Q7 L- p
64 bytes from 220.181.38.150 (220.181.38.150): icmp_seq=1 ttl=53 time=4.32 ms" M6 V) ~; e6 x; y. s
^C* T6 d$ [$ [& F- G) ~' V5 u
--- www.a.shifen.com ping statistics ---
! v/ [$ `: o1 X$ F; \ J0 y- g1 packets transmitted, 1 received, 0% packet loss, time 0ms
+ ^, s! j! p$ a+ lrtt min/avg/max/mdev = 4.328/4.328/4.328/0.000 ms& ], o" u q, z' {1 n- f, {( ]( m
[root@ocp-k8s-test2 ~]# ping 192.168.0.1
z W; H9 M0 p5 g8 Q3 y/ LPING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
3 v/ Q$ V# P* x7 h. L7 D$ W64 bytes from 192.168.0.1: icmp_seq=1 ttl=254 time=0.239 ms
7 N# c) h, d6 P2 n& A; X! b+ G^C
( f+ x) v/ A2 q" ^+ S--- 192.168.0.1 ping statistics ---: M# \; z9 p# @% e8 ?; D# B. K9 e
1 packets transmitted, 1 received, 0% packet loss, time 0ms
2 {* |9 Y7 u" t5 X. n, f# {rtt min/avg/max/mdev = 0.239/0.239/0.239/0.000 ms3 I5 X3 _: S U& Y
[root@ocp-k8s-test2 ~]# ( l7 X+ S) l/ C8 g' `" m
& b, K; ~6 n" f8 b0 |: x
$ q4 V4 ~! G5 L6 D
|
|