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[root@ocp-k8s-test2 ~]# route -n
! P# S- q; ]; xKernel IP routing table
- n) O3 ~! N7 j1 SDestination Gateway Genmask Flags Metric Ref Use Iface# a- I, w/ x; {& }
169.254.169.254 192.168.101.65 255.255.255.255 UGH 0 0 0 eth0* ]( p/ d8 D3 h E j
192.168.100.0 0.0.0.0 255.255.255.224 U 0 0 0 eth0
6 b( |) R% N( y0 s) l+ i, N( W192.168.100.32 0.0.0.0 255.255.255.224 U 0 0 0 eth0+ B/ J5 ^$ h. P! ?
192.168.100.64 0.0.0.0 255.255.255.224 U 0 0 0 eth0- S) d7 _3 o$ w3 R
192.168.100.96 0.0.0.0 255.255.255.224 U 0 0 0 eth0$ ]8 l( c; x' K4 C0 Z
192.168.100.128 0.0.0.0 255.255.255.224 U 0 0 0 eth0
1 Z3 K( c% L9 T+ i o- I$ \; P192.168.100.160 0.0.0.0 255.255.255.224 U 0 0 0 eth0
* f0 r0 Y. d k192.168.100.192 0.0.0.0 255.255.255.224 U 0 0 0 eth0" j& m! I" O; o: p. {2 N
192.168.100.224 0.0.0.0 255.255.255.224 U 0 0 0 eth0
. k7 H+ |* Q' B$ z; f* n: C192.168.101.0 0.0.0.0 255.255.255.224 U 0 0 0 eth06 u/ m% N6 Z i( _5 k% g. T- @
192.168.101.64 0.0.0.0 255.255.255.224 U 0 0 0 eth07 n ?. R5 F9 B3 S6 F/ Z% T
[root@ocp-k8s-test2 ~]# ping www.baidu.com3 C( C1 b( t( q7 h+ \
ping: www.baidu.com: Name or service not known. Q4 y2 a/ j$ T" f O
[root@ocp-k8s-test2 ~]# ping 192.168.0.1: K# }7 L2 d, ?3 i- C6 U
connect: Network is unreachable1 t: J( ^/ l" X2 @
[root@ocp-k8s-test2 ~]# ip addr
: v- Z; }8 t9 K0 ~# Y; q1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000; y/ n; |# s, A- a
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00& L7 v- S% w! Y0 B$ _
inet 127.0.0.1/8 scope host lo! c& Z3 R$ K9 Z1 t, p& u1 J5 K
valid_lft forever preferred_lft forever& C2 L5 q5 a9 e6 H% z/ K
inet6 ::1/128 scope host . m: M3 G% x J5 c% _2 E2 Q
valid_lft forever preferred_lft forever1 \1 N2 i- X& ?
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000) Z6 u* i! o2 L* R$ N- g
link/ether fa:16:3e:50:eb:dc brd ff:ff:ff:ff:ff:ff0 Y8 @( ?5 d) b% o6 o
inet 192.168.101.67/27 brd 192.168.101.95 scope global eth0/ [1 w$ g: S, R! v" H
valid_lft forever preferred_lft forever
7 G/ ^" {6 T3 M z' ~ inet6 fe80::f816:3eff:fe50:ebdc/64 scope link & O# T; P) _0 [; Y e
valid_lft forever preferred_lft forever( {( P% Y% n9 S, L
. Z, l! t' ~) o$ d6 E如果我们重启网络服务：& M+ A& Q: T4 |/ L+ g( L# l
systemctl restart network.service" w: ?: @ x; k9 l% k! o
之后& E. |, l7 a6 T
% {6 P2 r, V, Q$ ~
[root@ocp-k8s-test2 ~]# systemctl restart network.service
9 |1 Z& W: l* \4 D[root@ocp-k8s-test2 ~]# " ?) }9 M* R$ a, r6 {% K
% A1 p8 {2 Z/ {! ~: M路由发生变化：/ B& G+ C' ]8 \& K( x, \5 h1 F# p) R
[root@ocp-k8s-test2 ~]# route -n" C$ R8 S7 G4 [7 _; m7 _2 U
Kernel IP routing table. q! n" K: u. j" ^; I$ C! r7 i0 m
Destination Gateway Genmask Flags Metric Ref Use Iface
8 l- {& H3 U( Q1 {* P) H0.0.0.0 192.168.100.1 0.0.0.0 UG 100 0 0 eth0! G' T4 o6 s* n
169.254.169.254 192.168.101.65 255.255.255.255 UGH 100 0 0 eth0: |" l6 T0 Y' G: J* ^, f" Q
192.168.100.0 0.0.0.0 255.255.255.224 U 100 0 0 eth0
( y& C! G+ J! b1 O; w1 f1 L192.168.100.32 0.0.0.0 255.255.255.224 U 100 0 0 eth0- i) O$ H i/ z0 w& K
192.168.100.64 0.0.0.0 255.255.255.224 U 100 0 0 eth03 `* O0 D, M1 |3 ^. C4 J
192.168.100.96 0.0.0.0 255.255.255.224 U 100 0 0 eth0
0 p6 B+ L" g6 X3 F: m; ]% O192.168.100.128 0.0.0.0 255.255.255.224 U 100 0 0 eth03 f7 s; N/ I1 [+ c- y
192.168.100.160 0.0.0.0 255.255.255.224 U 100 0 0 eth0, b: Y9 h2 e4 c, K/ k. i
192.168.100.192 0.0.0.0 255.255.255.224 U 100 0 0 eth0
$ C% _+ F: p/ V r+ }2 e192.168.100.224 0.0.0.0 255.255.255.224 U 100 0 0 eth09 _# d+ D( E1 v- Z5 G" O0 L
192.168.101.0 0.0.0.0 255.255.255.224 U 100 0 0 eth0
- b( ^9 h4 {5 N# N8 F5 ?192.168.101.64 0.0.0.0 255.255.255.224 U 100 0 0 eth0' I* x1 [" b; J! }% b( F" q
此时增加了，192.168.100.1的路由网络。9 J$ L9 B, |1 G$ |6 S6 O' v% |
" x% r* A2 y; q$ O
ping 外网可以通了，5 ~& Q4 q4 N7 t8 T4 {. J
[root@ocp-k8s-test2 ~]# ping www.baidu.com% g' z e: O0 l- Q6 R
PING www.a.shifen.com (220.181.38.150) 56(84) bytes of data.; T$ w; n9 D! I* {
64 bytes from 220.181.38.150 (220.181.38.150): icmp_seq=1 ttl=53 time=4.32 ms" A( `4 `1 T! u$ }7 h
^C& v8 e! {9 y P& Z% q
--- www.a.shifen.com ping statistics ---, S# ? q! x3 ]3 j8 `! a
1 packets transmitted, 1 received, 0% packet loss, time 0ms
( V3 w8 Z: s; q: }% E! N, v1 srtt min/avg/max/mdev = 4.328/4.328/4.328/0.000 ms" ^7 A! \. I* b! s: r' r# Y' ~6 ^
[root@ocp-k8s-test2 ~]# ping 192.168.0.1
/ J: Q9 D" [' e: CPING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
1 F# K- K. e; b% ]64 bytes from 192.168.0.1: icmp_seq=1 ttl=254 time=0.239 ms7 z+ r W6 w8 k, E- a7 A
^C
; }( K% h, Q* T1 ?+ z--- 192.168.0.1 ping statistics ---1 x7 N) Q3 A/ h0 q
1 packets transmitted, 1 received, 0% packet loss, time 0ms
# K5 p; J5 N5 ~rtt min/avg/max/mdev = 0.239/0.239/0.239/0.000 ms
: V& v& r' K0 i0 l[root@ocp-k8s-test2 ~]#
/ Y: }; v3 [/ H2 \" G, j9 W2 n: _$ }8 n2 z! v$ j6 f
) \" {) ]$ A6 K/ h
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发表于 2022-7-29 17:01:21