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bgp4
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Posts: 22
Joined: Thu Nov 07, 2019 3:48 am
Location: Singapore

ipv6 route issues

Thu Jul 28, 2022 9:27 am

ROS v7.4. what’s the problem with ipv6 routing table?

if I add an ipv6 address on bridge2 , some addresses will be unroutable , even if I didn’t change anything on /ipv6 route.
[admin@MT] > ipv6 route pri
Flags: D - DYNAMIC; A - ACTIVE; c, d, v, y - COPY
Columns: DST-ADDRESS, GATEWAY, DISTANCE
    DST-ADDRESS               GATEWAY     DISTANCE
DAv ::/0                      pppoe         1
DAd 240e:3a0:5ac6:fcf0::/60                     1
DAc 240e:3a0:5ac6:fcf0::/64  bridge             0
DAc fe80::%ether1/64          ether1             0
DAc fe80::%bridge/64          bridge             0
DAc fe80::%pppoe/64      pppoe         0
DAc fe80::%bridge2/64         bridge2            0

[admin@MT] > too trace 2600::1                   //real internet addr
Columns: ADDRESS, LOSS, SENT, LAST, AVG, BEST, WORST, STD-DEV
 #  ADDRESS                       LOSS  SENT  LAST     AVG    BEST   WORST  STD-DEV
 1  240e:320:1060::54            0%       2  2.7ms    2.7    2.6    2.7    0.1    
 2  240e:320:60:1f6::            0%       2  2.9ms    3      2.9    3      0.1    
 3  240e:320:0:12c::             0%       2  8.3ms    8.3    8.2    8.3    0.1    
 4  240e:380:1:2:401:471::       0%       2  8.1ms    8.5    8.1    8.8    0.4    
 5  240e:380:1:2:203:401:1:0     0%       2  13.5ms   13.5   13.5   13.5   0      
 6  240e:380:0:1:203:2c6:0:1     0%       2  14.9ms   14.8   14.7   14.9   0.1    
 7  240e:380:0:4:2c6:2f6:2:0     0%       2  16.3ms   16.2   16     16.3   0.2    
 8  240e:380:0:4:2f6:294:1:0     0%       2  18.1ms   17.8   17.4   18.1   0.4    
 9  2402:4f00:100::88d            0%       2  45.6ms   45.6   45.6   45.6   0      
10  2402:4f00:100::24a            0%       1  78.6ms   78.6   78.6   78.6   0      
11  2001:de8:4::1239:1            0%       1  234ms    234    234    234    0      
12  2600:0:2:1239:203:222:33:154  0%       1  230.1ms  230.1  230.1  230.1  0      
13  2600::1                       0%       1  227.6ms  227.6  227.6  227.6  0      

[admin@MT] > too trace 27ff::                   //unreal internet addr,just test where it goes
Columns: ADDRESS, LOSS, SENT, LAST, AVG, BEST, WORST, STD-DEV
 #  ADDRESS                  LOSS  SENT  LAST     AVG   BEST  WORST  STD-DEV
 1  240e:320:1060::54       0%       2  2.4ms    2.4   2.4   2.4    0      
 2  240e:320:60:179::       0%       2  2.8ms    2.9   2.8   2.9    0.1    
 3  240e:320:0:92a::        0%       2  5.8ms    5.9   5.8   5.9    0.1    
 4  240e:380:1:2:401:472::  0%       2  7.7ms    7.7   7.6   7.7    0.1    
 5  240e:380:1:2:203:401::  0%       2  16.5ms   16.5  16.5  16.5   0      
 6                           100%     2  timeout                            
 7                           100%     1  timeout                            
 8                           100%     1  timeout                            
 9                           100%     1  timeout                            
10                           100%     1  timeout                            

[admin@MT] > too trace 2800::                   //unreal internet addr,just test where it goes
Columns: ADDRESS, LOSS, SENT, LAST, AVG, BEST, WORST, STD-DEV
 #  ADDRESS                    LOSS  SENT  LAST     AVG   BEST  WORST  STD-DEV
 1  240e:320:1060::54         0%       2  2.3ms    2.3   2.2   2.3    0.1    
 2  240e:320:60:972::         0%       2  3ms      3.2   3     3.4    0.2    
 3  240e:320:0:1960::         0%       2  5.9ms    7.5   5.9   9      1.6    
 4  240e:380:1:2:402:474::    0%       2  9.5ms    9.5   9.5   9.5    0      
 5  240e:380:1:2:204:402:1:0  0%       2  21.9ms   18.4  14.8  21.9   3.6    
 6                             100%     2  timeout                            
 7                             100%     2  timeout                            
 8                             100%     1  timeout                            
 9                             100%     1  timeout                            
10                             100%     1  timeout                            

[admin@MT] > too trace 2a01:4f8:c0c:bd0a::1                   //real internet addr
Columns: ADDRESS, LOSS, SENT, LAST, AVG, BEST, WORST, STD-DEV
 #  ADDRESS                    LOSS  SENT  LAST     AVG    BEST   WORST  STD-DEV
 1  240e:320:1060::54         0%       3  2.1ms    2.2    2.1    2.3    0.1    
 2  240e:320:60:179::         0%       3  3.1ms    2.9    2.7    3.1    0.2    
 3  240e:320:0:12c::          0%       3  7.9ms    8      7.9    8      0      
 4  240e:380:1:2:401:471::    0%       3  7.9ms    8      7.9    8.1    0.1    
 5  240e:380:1:2:203:401::    0%       3  16.5ms   16.6   16.5   16.6   0      
 6  240e:380:0:1:203:2c6:0:1  0%       3  14.7ms   14.6   14.5   14.7   0.1    
 7  240e:380:0:4:2c6:2f6:2:0  0%       3  15.7ms   15.8   15.7   16     0.1    
 8  240e:380:0:4:2f5:294:1:0  0%       3  17.1ms   16.8   16.4   17.1   0.3    
 9  2402:4f00:2000:100::6a5    0%       3  255.8ms  254.9  254.4  255.8  0.7    
10  2402:4f00:2000:100::71d    0%       3  262.9ms  250.1  243.5  262.9  9.1    
11  2001:7f8::616c:0:1         0%       3  244.2ms  244.2  244    244.3  0.1    
12  2a01:4f8:0:3::356          0%       3  252.4ms  248.4  246    252.4  2.8    
13  2a01:4f8:0:e0c0::a25e      0%       3  246.9ms  246.8  246.6  246.9  0.2    
14  2a01:4f8:0:e0c0::a27e      0%       2  248ms    255.8  248    263.5  7.8    
15                             100%     2  timeout                              
16  2a01:4f8:0:e0c0::3119      0%       2  246.8ms  247.1  246.8  247.4  0.3    
17  2a01:4f8:c0c:bd0a::1       0%       2  248.4ms  248.1  247.8  248.4  0.3    


↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑BEFORE↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑

[admin@MT] > /ipv6 address add address=2a03:a004:f090::2 advertise=no interface=bridge2

↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓AFTER↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓


[admin@MT] > ipv6 route pri
Flags: D - DYNAMIC; A - ACTIVE; c, d, v, y - COPY
Columns: DST-ADDRESS, GATEWAY, DISTANCE
    DST-ADDRESS               GATEWAY     DISTANCE
DAv ::/0                      pppoe         1
DAd 240e:3a0:5ac6:fcf0::/60                     1
DAc 240e:3a0:5ac6:fcf0::/64  bridge             0
DAc 2a03:a004:f090::/64       bridge2            0
DAc fe80::%ether1/64          ether1             0
DAc fe80::%bridge/64          bridge             0
DAc fe80::%pppoe/64      pppoe         0
DAc fe80::%bridge2/64         bridge2            0

[admin@MT] > too trace 2600::1                   //normal as before
Columns: ADDRESS, LOSS, SENT, LAST, AVG, BEST, WORST, STD-DEV
 #  ADDRESS                       LOSS  SENT  LAST     AVG    BEST   WORST  STD-DEV
 1  240e:320:1060::54            0%       3  2.2ms    2.3    2.2    2.5    0.1    
 2  240e:320:60:1f6::            0%       3  3.5ms    3.2    3      3.5    0.2    
 3  240e:320:0:12c::             0%       3  8.4ms    8.2    8.1    8.4    0.1    
 4  240e:380:1:2:401:471::       0%       3  8.2ms    9.3    8.2    10.9   1.2    
 5  240e:380:1:2:203:401:1:0     0%       3  13.5ms   13.6   13.5   13.7   0.1    
 6  240e:380:0:1:203:2c6:0:1     0%       3  14.9ms   14.8   14.7   14.9   0.1    
 7  240e:380:0:4:2c6:2f6:2:0     0%       3  15.9ms   15.9   15.7   16     0.1    
 8  240e:380:0:4:2f6:294:1:0     0%       3  17.4ms   18.7   17.4   21.3   1.8    
 9  2402:4f00:100::88d            0%       3  45.7ms   45.9   45.7   46.1   0.2    
10  2402:4f00:100::24a            0%       3  76.9ms   77.6   76.9   78.1   0.5    
11  2001:de8:4::1239:1            0%       3  234.4ms  234.6  234.2  235.2  0.4    
12  2600:0:2:1239:203:222:33:154  50%      3  timeout  230    230    230    0      
13  2600::1                       0%       2  228.1ms  228.4  228.1  228.6  0.3    

[admin@MT] > too trace 27ff::                   //normal as before
Columns: ADDRESS, LOSS, SENT, LAST, AVG, BEST, WORST, STD-DEV
 #  ADDRESS                  LOSS  SENT  LAST     AVG   BEST  WORST  STD-DEV
 1  240e:320:1060::54       0%       2  2.5ms    2.4   2.3   2.5    0.1    
 2  240e:320:60:179::       0%       2  2.9ms    2.8   2.7   2.9    0.1    
 3  240e:320:0:92a::        0%       2  5.9ms    5.8   5.7   5.9    0.1    
 4  240e:380:1:2:401:472::  0%       2  7.6ms    7.9   7.6   8.1    0.3    
 5  240e:380:1:2:203:401::  0%       2  16.5ms   16.6  16.5  16.6   0.1    
 6                           100%     2  timeout                            
 7                           100%     1  timeout                            
 8                           100%     1  timeout                            
 9                           100%     1  timeout                            
10                           100%     1  timeout                            

[admin@MT] > too trace 2800::                   //seems that it doesn't know where to go ,for destination from 2800::/5
Columns: LOSS, SENT, LAST
#  LOSS  SENT  LAST   
1  100%     3  timeout
2  100%     3  timeout
3  100%     3  timeout
4  100%     2  timeout
5  100%     2  timeout

[admin@MT] > too trace 2a01:4f8:c0c:bd0a::1
Columns: LOSS, SENT, LAST
#  LOSS  SENT  LAST   
1  100%     2  timeout
2  100%     2  timeout
3  100%     2  timeout
4  100%     1  timeout
5  100%     1  timeout

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